identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03931C28FFB6FF87B5EFFD32FDFE778A.text	03931C28FFB6FF87B5EFFD32FDFE778A.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Australimnadia grobbeni (Daday 1925) Daday 1925	<div><p>Australimnadia grobbeni (Daday, 1925) comb. nov.</p><p>(Figs 1–4)</p><p>Limnadia grobbeni Daday, 1925: 150 (key), 167–170: fig. 119; Webb &amp; Bell, 1979: 243; Brtek, 1997: 57 (list). Limnadia sp. B.— Schwentner et al., 2009: 723, tab. 1, fig. 1–3.</p><p>Australimnadia gigantea Timms &amp; Schwentner, 2012: 984 –989, figs 2–4. [New synonym].</p><p>Type material. Lectotype. Female, New South Wales, collector and date unknown, but before 1925, ZCUV 2016/ 12/1. (The lectotype is damaged and not easily accessed: cercopods and antennae missing, and rostrum squashed beyond recognition).</p><p>Other material examined. Northern Territory: 1 female, lagoon near Darwin, 27 May 1913, G.F. Hill, NMV J54038 ; 2 males, 8 females, Berrimah, 2.5 km E along Stuart Highway, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=130.94475&amp;materialsCitation.latitude=-12.439055" title="Search Plazi for locations around (long 130.94475/lat -12.439055)">Knuckeys Lagoon</a>, 12°26’20.6”S, 130°56’41.1”E, 23 February 2006, S. Richter, AM P88391 . New South Wales: 3 males, 4 females, Clarence River, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=153.29529&amp;materialsCitation.latitude=-29.531666" title="Search Plazi for locations around (long 153.29529/lat -29.531666)">Taloumbi</a>, 29°31’54”S, 153°17’43”E, 7 Apr 2001, NSW State Fisheries, AM P80867 – 80869; 4 males, 5 females, Paroo, Bloodwood Station, <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=144.85042&amp;materialsCitation.latitude=-29.508417" title="Search Plazi for locations around (long 144.85042/lat -29.508417)">Wirrania Swamp</a>, 29°30’30.3”S, 144°51’1.5” E, 5 July 2016, BVT, AM P99542 . Queensland: 5 males, 5 females, Cape York, 51.5 km SE of Bamaga, a dune lake at <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=142.7667&amp;materialsCitation.latitude=-11.164944" title="Search Plazi for locations around (long 142.7667/lat -11.164944)">Ussher Point</a>, 11°09’53.8”S, 142°46’00.1”E, 8 July 1983, BVT, AM P88390, BVT ; 3 males, 2 females, 17 km ESE of <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=149.98883&amp;materialsCitation.latitude=-27.355251" title="Search Plazi for locations around (long 149.98883/lat -27.355251)">Meandarra</a>, from gilgai on south side of Surat Development Road, 27°21’18.9”S, 149°59’19.8”E, 7 July 2009, BVT, AM P88387–88389 [holotype, allotype and paratypes of A. gigantea Timms &amp; Schwentner, 1925] ; 2 males, 2 females, 17 km ESE of Meandarra, data as above, QM W29148 [paratypes of A. gigantea Timms &amp; Schwentner, 1925] . Victoria: 3 females, Melbourne, Kew rifle range, 22 October, 1912, unknown collector, NMV J54035 ; 1 male, 1 female, Barmah State Forest, washout into Murray River, 5 December 2000, M. Jones, NMV J62965 .</p><p>Diagnosis. Egg double discoid. Large limnadiid shrimp with 23 or 24 trunk segments, male with long palps on claspers, clasper I with two palpomeres, clasper II with three palpomeres. Usually 24 trunk segments. Both sexes with telson bearing 18–24 (usually 21–24) dorsal spines divided into two groups by insertion of telsonic filaments: an anterior 8–12 spines on convex edge and posterior 9–13 spines on concave edge. Cercopod with about 20–25 (usually 22–25) long plumose setae, without spines midlength.</p><p>Description. Egg. (Fig 3 A–E). Non-spherical double discoid shape at most localities. Mean diameter about 236 µm, but measurements depending very much on point of measurement. Each disc consisting of elongated twisted facies of alternate ridges and grooves at right angles to axis; this ridge-groove system occupying ½ to almost all of disc width. Egg in Meandarra population appearing different from those in four other populations; although double discoid in shape, ridge-groove system much more widely spaced along axis with ridges narrow and ‘grooves’ wide.</p><p>Female lectotype. Rostrum probably rounded, (but squashed). Telson spines 23 or 24 in two groups separated by telsonic filament mid-length. Anterior group of 8–12 on convex margin, tending posteriorly curved; posterior group of 11–13 on concave margin, tending erect vertically. Telsonic ventroposterior margin rounded, hardly protruding. No other features discernible.</p><p>Male (based on types of A. gigantea). Length 12.6 mm, height 9.0 mm. Head (Fig. 1 F, 2B) with prominent ocular tubercle containing spherical compound eye, with asymmtetrical dorsal organ posterior by about its own height. Rostrum triangular, protruding subequally to ocular tubercle, apex rounded to acute. Ocellus shape variable shape, but largely cometiform.</p><p>First antennae (Fig. 2 B) about 1.5 times longer than peduncle of second antenna, with ca.12 sensory lobes. Second antennae rami with 12–14 antennomeres, most with ca. 6 dorsal spines and 7 long ventral setae (Fig. 2 C), except smaller apical antennomeres, and basal antennomeres.</p><p>Carapace (Fig. 1 D, 2A) unevenly ovoid, with weakly vaulted dorsal surface, maximum height about one-third length from anterior, large larval surface, generally dark coloured even dorsal hinge, growth lines weakly expressed and numbering up to ca. 25. Umbone absent. Abductor muscle scar located away from carapace edge by its diameter, ovoid, at ca. 45° angle to horizontal axis.</p><p>Trunk segments and thoracopod pairs 24, sometimes 23. Thoracopods as described for A. gigantea and illustrated by Timms &amp; Schwentner (2012: fig. 4). Segments X–XXIV with stout dorsal setae medioposteriorly on small mounds, many (about 7–15) on segments XII–XVIII and few on segments X–XI and XVIII–XIV, as described by Daday (1925).</p><p>Claspers (Fig. 2 D) with palm trapezoidal, terminating in apical club medially and in expanded base of moveable finger (endopod) laterally. Club with small palp laterally, with apical setae terminally. Club apically with scaliform spines graduating laterally into long spines, providing griping surface for apical pits of finger (Kaji et al.</p><p>2014). Moveable finger arcuate, terminating in blunt rounded apex with suctorial organ anterioventrally and rounded pits dorsally. Long palp inserted on dorsal edge of palm alongside finger base; clasper 1 with palp of two palpomeres and little longer than palm; clasper 2 with palp of three palpomeres and about twice as long as palm. Both palps distally with numerous setae marginally on flattened concave apical area. Palpomere junctions without spines or setae.</p><p>Telson (Fig. 1 H, 2C) with 22–24 dorsal spines, each without adornment except denticle row on anterior surface of posterior spiniform projection, spine generally upturned; remaining spines in two groups separated by telsonic filament mid-length. Anterior group of 8–12 on convex margin, tending posteriorly curved; posterior group of 11– 13 on concave margin, tending erect vertically. Telsonic ventroposterior margin usually rounded, hardly protruding.</p><p>Cercopod (Fig. 1 H, 2C) subequal in length to telson, sometimes straight, concave, or even weakly convex; array of 22–25 long plumose setae along 80–90% of its length; proximally, these setae longer than telson height (i.e. about 3 × cercopod diameter), distally somewhat shorter, often only about diameter of cercopod; spine at distal end of setalarray without spine. Distal 10–15% of cercopod narrowing to sharp apex, usually with weak cirrus of small denticles dorsally.</p><p>Female (based on types of A. gigantea). Length 16.2 mm, height 12.7 mm. Head (Fig 1 F, 2G) as in male but with triangular rostrum with rounded apex.</p><p>First antennae (Fig. 2 G) subequal to peduncle length and with 6 or 7 lobules. Second antennae as in males.</p><p>Carapace as in male, but more vaulted.</p><p>Thoracopods as in male, but no claspers, with long epipodial filaments of thoracopods IX and X for holding eggs.</p><p>Telson and cercopods as in male.</p><p>Variation. With material from Cape York south to Melbourne (3000 km) and west to Darwin (1300 km), some variation in morphology can be expected (Fig. 4 A–F), but it is not clinal. Carapace shape varies between sites, with those at Meandarra (Fig. 2 A, F) more vaulted ventrally then is typical of other populations (Fig 4 A). While there is minor variation in numbers of telsonic spines particularly in the anterior group (8–12), this set is not always distinctively curved (as in Fig. 4 B). The spiniform projection of the telson can be curved dorsally or protruding straight posteriorly. Cercopod setae basally are always 3–4 times its basal diameter but diminuation along the setal row can be minimal down to the length subequal to the cercopod diameter. An exception is the specimen Daday illustrated (Fig. 1 H) which shows all cercopod setae short, about 1–1.5 times cercopod basal diameter. No significant variation was observed in head structure, antennae, or claspers, except to note that Daday (1925) recorded only 4 sensory lobes in the first antenna he examined (compared to 6 or 7 in all present specimens).</p><p>Individuals from Wirrania Swamp in the Paroo are smaller than usual (mean length males 10.5 mm, n = 4; females 12.0 mm, n = 5). Meristic features are a little fewer than in other populations: the second antennal flagellomeres have the most common arrangement as 5 dorsal spines and 6 ventral setae, telsonic spines range from 18–20 and cercopod setae from 20–22. Otherwise, they accord with the morphology of A. grobbeni as described above.</p><p>Remarks. The female syntype (ZCUV 2016/12/1) of Australimnadia grobbeni is herein designated as the lectotype to fix the identity of the species. Characteristics of the lectotype and type specimens of A. gigantea agree with Daday’s original description and diagrams of Limnadia grobbeni (illustrated in his figs 3F–J, and here repeated in Fig. 1 D–H)). The carapace is approximately the same across all specimens and the animal certainly large, the head also is approximately the same, but heads are usually not distinctive in limnadiids (and we note it is possible that Daday’s diagrams of male and female heads are reversed ― male heads in limnadiids almost always have a more-or-less triangular rostrum and the female rostrum rounded, yet Daday figures the female rostrum triangular and the male rostum rounded), but the telson is distinctive, though not identical in ornamentation to the lectotype (i.e., telson setae inserted at 8th telson spine, not the 10th, and the cercopod setae are of moderate length (ca 1–1.5 times cercopod diameter) instead of long (ca 3–4 times cercopod diameter). It is significant that the distinctive feature of L. grobbeni as determined from the lectotype and type description, namely the telson ornamention, matches exactly its counterpart in A. gigantea . No other limnadiid has such a distinctive arrangement of telson spines as Australimnadia, particularly this species. Comparison of the lectoype of L. grobbeni and types series of L. gigantea shows that the two nominal species are taxonomically indistinguishable and are therefore synonymised.</p><p>The egg of A. grobbeni is somewhat different from that what is now thought to be A. grobbeni at Meandarra but so similar to that of Limnadia lenticularis (see Fig. 4 F and Timms &amp; Schwentner 2012: figs 2A, B), that no consistent differences are apparent. However, the difference in egg morphology within Australimnadia between the Meandarra and other populations is distinct enough to suggest a separate species, but their adult morphologies are the same (compare Timms &amp; Schwentner 2012: fig. 3 for the Meandarra population with Figs 2 and 3 herewith of the Knuckeys Lagoon, Ussher Point and Taloumbi populations). The possibility of a mix-up in SEM labelling was explored and dismissed, so that the difference remains unexplained.</p><p>Distribution and Ecology. Australimnadia grobbeni occurs sporadically, both spatially and temporally, in eastern and northern Australia. It has only been seen once in Melbourne (in 1912) and given the subsequent urbanisation of the site, it could now be extinct so far south. The Meandarra site has been visited a few times and it seems the population only appears there after a major filling of the gilgai and expires well before drying. This site is shared with Paralimnadia queenslandicus Timms, 2016b, which occurs on any filling and is persistent. The Wirrania population grew from first filling in late May 2016 to adulthood by early July and stayed at about that size till late October after which it apparently disappeared even though the site did not dry till December 2016. Specimens were much damaged by attempted predation, with second antenna and/or cercopods often missing and carapace with large bites taken out.</p></div>	https://treatment.plazi.org/id/03931C28FFB6FF87B5EFFD32FDFE778A	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Timms, Brian V.;Schwentner, Martin	Timms, Brian V., Schwentner, Martin (2017): A revision of the clam shrimp Australimnadia Timms and Schwentner, 2012 (Crustacea: Spinicaudata: Limnadiidae) with two new species from Western Australia. Zootaxa 4291 (1): 81-98, DOI: 10.11646/zootaxa.4291.1.5
03931C28FFB3FF8AB5EFFD19FABD7301.text	03931C28FFB3FF8AB5EFFD19FABD7301.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Australimnadia multifaciata	<div><p>Australimnadia multifaciata sp. nov.</p><p>(Figs 5–7)</p><p>Etymology. The specific epithet refers to the egg which has 8–10 distinct facets each with a few depressions and ridges.</p><p>Material Examined. Holotype: male, roadside pool 19.65 km S of <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=115.10916&amp;materialsCitation.latitude=-21.81" title="Search Plazi for locations around (long 115.10916/lat -21.81)">Onslow</a>, Western Australia, 21o48'36"S, 115o 06'33"E, 16 February 2009, BVT, WAM C5916 . Allotype: female, collected with holotype, WAM C5917. Paratypes: 1 male, 2 females, collected with holotype, WAM C5918.</p><p>Other material examined. 1 male, 15 females, collected with holotype WAM C5919; 1 male, collected with holotype, AM P91946; 1 female, collected with holotype, AM P91947.</p><p>Diagnosis. Egg non-spherical with 8–10 short facets each with few parallel ridges and depressions. Trunk segments 22 or 23. Second clasper with large palp bearing 2 palpomeres. Third thoracopod with palp of endite V almost 4 times longer than endite V. About 20–22 telsonic setae, separated into 2 subequal groups by insertion of telsonic filaments. Cercopod with about 40 long setae on proximal 80%.</p><p>Description. Egg. (Fig. 1 C, D): mean diameter 176 µm, range 168–190 µm (n =10). Egg surface arranged in 8–10 facets, each with 4–6 grooves separated by rounded ridges arranged in short parallel sequences with facet surfaces meeting at angles&gt;120°, at truncated depressions or at ends of set of depressions at angles &lt;75° or occasionally&gt;120° and marked by small ridge. Surface (tertiary) layer thin, particularly on ridges and covering thick spongiform layer.</p><p>Male. (Fig. 5 A, C, E–G, J). Length 9.1 mm, height 6.5 mm. Head (Fig. 3 C) smoothly humped posterodorsally with rounded ocular tubercle containing compound eye about 60% by volume. Pyriform frontal organ as long as ocular tubercle and separated from ocular tubercle by about its length. Anterior base of ocular tubercle meeting asymmetrically rounded rostrum at angle of about 85°. Rostrum protruding subequally as much as ocular tubercle, dorsally containing oval ocellus little smaller than compound eye. Labrum prominent, terminating in sharp setose apex. Labrum with prominent lobe midway on posterior surface.</p><p>First antenna (Fig. 5 C) about twice as long as peduncle of second antenna and with about 15 sensory lobes subequal in size. Second antenna (Fig. 5 E, F) with peduncle of about 12 annulations each, with spines dorsally and two rami, dorsal ramus with about 12 antennomeres and ventral ramus with about 14 antennomeres. Most antennomeres with about 4 spines dorsally and about 6 long setae ventrally. Proximally and apically, number of spines and setae more variable (spines 2–5; setae 4–7).</p><p>Carapace (Fig. 5 A) off-white, opaque, oval, almost without dorsoanterior and dorsoventral angles. Dorsum evenly arched, maximum height at mid-length. Abductor muscle scar lying about 30° to horizontal body axis. No growth lines apparent.</p><p>Trunk segments 22. Dorsally, trunk segments XII–XXII each with few short setae or spines on posterior medial edges. Thoracopods I and II modified into claspers (Fig. 5 J) essentially similar in structure. Palm trapezoidal with minor asymmetrical protrusion situated dorsomedially and near apical club base. Palm terminating in apical club medially and in expanded base of moveable finger laterally. Apical club longer than wide, but with thickening base and lateral insertion of small palp. Club with many short stout spines on terminal half medially and fewer long, jointed spines on lateral half. Moveable finger arcuate, terminating in blunt apex and with apical suctorial organ anteroventrally and rounded pits dorsally (in-situ). Long palp of 2 palpomeres and inserted terminally on palm; clasper 1 distal palpomere little longer than hand, but about twice as long on clasper 2 and 2.5 times length of hand. Distally, both palps with numerous setae marginally on flattened concave apical area. No spines or setae at palpomere joints.</p><p>Only thoracopod III described here (Fig. 6) though thoracopods IV to at least XV with broadly similar structure. Endites each with numerous anterior (AS) and posterior setae (PS). Endopod, exopod and flabellum each with posterior setae and naked epipodite. Endite I with about 45 apparently PS and about 12 apparently AS on medial margin, varying in size and complexity; 2 most basal short, stout and each with few short setulae; remaining approximately 10 or so setae are of 2 portions, increasing in length towards the centre, with basal portion stout, with few setulae, and with distal portion longer and plumose. Medial surface of endite I with thick row of setae along medial surface near medial margin. Endite II with about 35 AS and about 55 PS, endite III with about 17 AS and about 25 PS, endite IV with about 20 AS and about 20 PS, endite V with about 44 setae (presumably PS), 1 row transverse and 1 row apically. Endite V with cylindrical palp almost 3 times longer than endite V. Posterior setae similar throughout, geniculate, long and plumose. Anterior setae always geniculate and little longer than half PS, otherwise variable between endites: on endites II–IV, portion stout and plumose, but distal portion with cirrus. On endite II, base of cirrus with 3 or 4 pairs of blunt spines laterally, decreasing in size along each seta. Endopod with about 42 PS, distalmost with basal spiniform projection from endopod. Exopod and flabellum with numerous (ca. 80–100) presumably PS, most distal group (occupying about half exopod) on exopod with basal spiniform projection. Endopod, exopod and flabellum all long and narrow, each with acute apex. Epipodite fusiform, about 4/ 5 length of flabellum. Last few thoracopods very much smaller and reduced in complexity.</p><p>Telson (Fig. 5 G) with about 21 dorsal spines on each side, mostly of even spacing and size; most spines slightly curved posteriorly, with setulae laterally. Anterior 10 spines in slightly convex row, basal surface of last 11 spines almost straight. Telson dorsal surface with mound at 10th spine supporting pair of setose telsonic filaments. Viewed dorsally, telsonic spines situated on U-shaped flange joined across midline anteriorly and open posteriorly; posterior surface high and near base of spines anteriorly utill insertion of telsonic filaments, but declivous posteriorly from this insertion with 11 posterior spines on sharp narrow ridge. Entire dorsal telsonic surface merging smoothly with posterodorsal surface of trunk segments, i.e., no steep rise to first telsonic spine.</p><p>Cercopod little longer than telson; dorsal and ventral margins almost parallel for about 80% of its length, with final 20% narrowing to sharp concave apex. Basal 80% of cercopod bearing about 40 long geniculate plumose setae dorsally, posteriormost much shorter than others. Distal 20% with cirrus of numerous short denticles dorsally on concave surface.</p><p>Female. Length 11.0 mm, height 8.0 mm. Head (Fig. 5 D) largely as in male, though rostrum as prominent and even more asymmetrical; ocellus somewhat oval and almost as large as compound eye.</p><p>Carapace (Fig. 5 B) similar to that of male, but anterodorsal and posterodorsal angles more noticeable while dorsal margin somewhat vaulted; carapace highest anteriorly at about 40% of its length.</p><p>First antenna (Fig. 5 D) little longer than peduncle of second antenna and with about 9 sensory lobes of similar size. Second antenna as in male.</p><p>Trunk segments 23. Many segments with clumped dorsal setae/spines: none on segments I–IX, few on segments X and XI, many (mainly setae) on segments XII–XVII and few (mainly spines) in successively decreasing numbers and size on segments XVIII–XXIII. These setae/spines inserted on mounds along posterior portion of each segment, most noticeably on segments XII–XVII.</p><p>First 15 thoracopods all broadly similar to one another and to thoracopod III of male. None with endopodal palp. Remaining thoracopods serially smaller and reduced in complexity. Thoracopods on segments IX and X with long epipodal filaments to hold egg mass.</p><p>Telson (Fig. 5 H) as in male, but with 23 dorsal spines each side.</p><p>Variation. In other specimens of Australimnadia multifaciata sp. nov. examined, some variation (ca 5%) in meristic characteristics was noted, as is often the case in clam shrimps (Straškraba 1966) e.g., lobules on the first antennae numbered 14 rather than 15 in some males and eight rather nine in some females; antennomeres sometimes differing by one from the 12 and 14 stated, one male had 23 trunk segments instead of 22; telsonic spines varied from 21–23, and cercopod setae were always numbered near 40 (see below as this latter number is an important difference between A. multifaciata sp. nov. and A. grobbeni).</p><p>Remarks. The two individuals studied of Australimnadia multifaciata sp.nov. had identical COI sequences. Uncorrected p -distances between A. multifaciata sp. nov. and A. grobbeni were 11.3 % for COI and 0.07 % for EF1a. None of the translated amino acid sequences featured stop codons or any amino acid substitutions.</p><p>Distribution and Conservation Status. Australimnadia multifaciata sp.nov. is known only from its type locality, a roadside pool 19 km south of Onslow, on the delta of the Ashburton River on the Pilbara coast. There are many turbid clay pans in the area, but only this deeper pool with clearer water harbours A. multifaciata sp. nov. It is possible the site is a singleton and given this species was not encountered in an intensive survey of the aquatic resources of the Pilbara (Pinder et al. 2013), A. multifaciata sp. nov. could be a rare species and critically endangered according to ICUN criteria. The recent industrial development near Onslow nearby is of concern.</p></div>	https://treatment.plazi.org/id/03931C28FFB3FF8AB5EFFD19FABD7301	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Timms, Brian V.;Schwentner, Martin	Timms, Brian V., Schwentner, Martin (2017): A revision of the clam shrimp Australimnadia Timms and Schwentner, 2012 (Crustacea: Spinicaudata: Limnadiidae) with two new species from Western Australia. Zootaxa 4291 (1): 81-98, DOI: 10.11646/zootaxa.4291.1.5
03931C28FFBEFF8EB5EFF99AFC0F7671.text	03931C28FFBEFF8EB5EFF99AFC0F7671.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Australimnadia torqueova	<div><p>Australimnadia torqueova sp. nov.</p><p>(Figs 7–9)</p><p>Etymology. The specific name reflects the twisted nature of the facets of the egg, based on the Latin ‘torque’ meaning twisted and ‘ova’ meaning egg.</p><p><a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=115.88333&amp;materialsCitation.latitude=-31.883333" title="Search Plazi for locations around (long 115.88333/lat -31.883333)">Material</a> examined. Holotype: male, Morley Park, Western Australia, 31°53’S, 115°53’E, Morley Park State School, 1936, WAM C5223 . Allotype: female, collected with holotype, WAM C5224. Paratypes: female, collected with holotype, WAM C5225</p><p><a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=115.71667&amp;materialsCitation.latitude=-32.533333" title="Search Plazi for locations around (long 115.71667/lat -32.533333)">Other</a> material examined. 3 females, Road Lake near Mandurah, Western Australia, 32°32'S, 115°43'E, 27 August 1954, G.P. Whitley, AM P12429.</p><p>Diagnosis. Egg double discoid, with 2 or 3 long facets each with many parallel ridges and grooves and twisted around each other, usually appearing as double discoid. First antennae with about 9 lobes in both sexes, second antennae with 12–14 antennomeres. Trunk segments 18. Second clasper with large palp bearing 2 palpomeres. Telson with about 20 spines, divided by telsonic filament insertion into 3 or 4 anterior spines and about 16 or 17 closely arranged spines. Cercopod with about 15 long setae on basal 50–60%.</p><p>Description. Egg (Fig. 7 C–F): Mean maximum diameter 248 µm, range 202–287 µm (n = 10). Non-spherical consisting of 2 or 3 twisted bands, the facias, of parallel alternate ridges and grooves usually arranged as double discoid but sometimes mis-shapen, twisting incomplete or occasionally with facias parallel. Each facia separated by flange with uneven surface due to burst and unburst air pockets (i.e., foamy) and its ridge/groove system occupying about 1/3 to ½ its width.</p><p>Male: Length 8.9 mm, height 6.0 mm. Head (Fig. 8 C) with ocular tubercle prominent, compound eye spherical and occupying about 50% of it. Rostrum bluntly triangular, protruding subequally to ocular tubercle and at angle of about 90° to it. Ocellus about half size of compound eye and lying at base of rostrum. Dorsal organ posterior to eye, subequal to its height, asymmetrical and placed within half its height to ocular tubercle.</p><p>First antennae (Fig. 8 C) little longer than peduncle of second antennae, with about 9 lobes, each with numerous short sensory setae. Second antennae with spinose peduncle about twice as protruding as rostrum and dorsal flagella with about 12 antennomeres and ventral flagella with 14 antennomeres. Dorsally with 1–3 short spines and ventrally with 0–4 long (up to 10 × antennomere diameter) setae per antennomere. Basal and distal antennomeres with minimal spines, while setae maximal distally.</p><p>Carapace (Fig. 8 A) elongated oval, pelucid, and with about 6 growth lines. Adductor muscle scar at about 45° to carapace long axis.</p><p>Thoracopods: Eighteen pairs, the first two modified as claspers (Fig. 7 D). Palm trapezoidal with an asymmetrically rounded expansion distomedially. Apical bulb spherical with many stout spines pointing medially, also laterally bearing a small palp with many short thin spines apically. Finger arcuate with blunt apex bearing suctorial disc anterordorsally and many rounded pits ventrally. Long palp of first clasper inserted on apical edge of palm, of 2 palpomeres and without setae at the palpomere junctions, many thin limp setae terminally. Long palp of second clasper similarly structured but second palpomere long, about 1.5 times longer than hand.</p><p>Only thoracopod III described here (Fig. 9) though thoracopods IV to at least XV of broadly similar structure. Endites each with numerous anterior (AS) and posterior setae (PS). Endopod, exopod and flabellum each with posterior setae and naked epipodite. Endite I with about 30 curved (apparently) PS on lateral margin and about 13 straight (apparently) AS on medial margin, varying in size and complexity; the 2 most basal short, stout and each bearing about 5 denticles. The remaining approximately 11 setae of 2 segments, increasing in length towards the centre, and with basal segment stout and longer with setulae on one side, distal segment thin, shorter and plumose. Endite II with about 27 AS and about 38 PS, endite III with about 16 AS and about 18 PS, endite IV with about 13 AS and about 18 PS, endite V with about 42 setae (presumedly PS), 1 row transverse and 1 row apically. Endite V with cylindrical palp almost 1.5 times longer than endite V. Posterior setae similar throughout, long, plumose, of 2 segments, with basal segment generally 35–45% of length. Anterior setae always of 2 plumose segments and varying from ¼ (endite 2) to ¼ (endite 3) to ½ (endite 4) length of PS. Basal segment of AS stouter than distal segment and about 60% of total length. Endopod with about 24 PS, distalmost with basal spiniform projection from the endopod. Exopod and flabellum with numerous (ca. 80–100) presumably PS, most distal group (occupying about half exopod) on exopod with basal spiniform projection. Endopod, exopod and flabellum all long, narrow, each with acute apex. Epipodite fusiform, slightly longer than flabellum. Last few thoracopods very much smaller and reduced in complexity. Other thoracopods of typical structure for Australimnadia, decreasing is size and complexity posteriorly. Dorsal surface of trunk with 1–5 short spines medoposteriorly on asymmetrical mounds on each of posterior 8 trunk segments.</p><p>Telson (Fig. 8 B) with about 20 pairs of dorsal spines on distinctly even convex surface, first 4 well-spaced with anteriormost and 4th larger than 2nd and 3rd. Telsonic filaments originating from mound little higher than dorsal floor of telson positioned at about fourth spine. Dorsal floor of telson posterior to mound sloping steeply posterior to mound, then with slightly concave surface to base of cercopod. About 17 crowded spines posterior to insertion of caudal filaments, increasing in length posteriorly. Cercopods as long as dorsum of telson, basal 50% hardly thinning and bearing about 15 setae 3–4 times as long as basal diameter of cercopods, without terminal spine. Apical 40–50% of cercopods gradually thinning; apical surface covered with very small denticles. Ventroposterior corner of telson slightly protruding but rounded.</p><p>Female. Length 10.5 mm, height 7.8 mm. Head (Fig. 8 G) with ocular tubercle prominent, with compound eye occupying about 50% of it. Rostrum a rounded triangular bulge, little less protruding than ocular tubercle and with basal part occupied by large ocellus, about 60% size of compound eye. Dorsal organ posterior to eye by about half its height, pedunculate and asymmetrical and subequal in height to ocular tubercle.</p><p>First antennae (Fig 8 G) little shorter than peduncle of second antennae, with about 9 lobes each, with many short sensory hairs. Second antennae largely as in male, but peduncle about 3 times rostrum length.</p><p>Carapace (Fig. 8 E) as in male, though more vaulted dorsally. About 9 growth lines.</p><p>Eighteen pairs of thoracopods of typical Paralimnadia structure. Trunk dorsum with 1–3 setae on posterior 3 trunk segments, and 5–9 setae on next 5 or 6 trunk segments. Dorsum of anterior 8–10 trunk segments naked.</p><p>Telson (Fig. 8 F) as in male.</p><p>Variation. Of the few specimens available, those from Mandurah (AM P12429) are slightly different, the main variation is the extra spine in the anterior group of telsonic spines and their close spacing. There is also an extra seta in the cercopod row. It is most unusual among limnadiids for males and females to have similar number of lobules on the first antennae, but all five females examined had the same number as the male, suggesting the male is unusual or the condition is indeed valid.</p><p>Distribution and Conservation Status. Both localities are on the sandy Swan coastal plain on the southwest coast of Western Australia. Australimnadia torqueova sp. nov. might now be extinct, given both localities are now in urban areas and Morley School no longer exists, having been replaced by a shopping complex and huge cemented car park. Furthermore, the wetlands of the Perth area have been well studied post 1980s without rediscovery of A. torqueova (e.g., Davies et al. 1993; Horwitz et al. 2009).</p></div>	https://treatment.plazi.org/id/03931C28FFBEFF8EB5EFF99AFC0F7671	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		MagnoliaPress via Plazi	Timms, Brian V.;Schwentner, Martin	Timms, Brian V., Schwentner, Martin (2017): A revision of the clam shrimp Australimnadia Timms and Schwentner, 2012 (Crustacea: Spinicaudata: Limnadiidae) with two new species from Western Australia. Zootaxa 4291 (1): 81-98, DOI: 10.11646/zootaxa.4291.1.5
