taxonID	type	description	language	source
811F87CDA1399F59659AEC27714EC183.taxon	diagnosis	Generic diagnosis. Sternal processes absent. Mandibular molar triturative, palp article 3 longer than 2, posterodistal margin straight, with setae of several lengths. Maxilliped basal endiTe anTeriOr marGin wiThOUT winG-like flanGes. Gnathopod 1 merus short; carpus shorter than propodus. Male gnathopod 1 propodus enlarged. Female gnathopod 1 simple to weakly subchelate. Male and female gnathopod 2 carpUs anTeriOr marGin wiTh flanGe, wiTh line Of lOnG Included species. Xenocheira fasciata Haswell, 1879; X. longisetosa Ren, 2006; X. pirloti Moore, 1988 and X. xandrothrix sp. nov.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1399F59659AEC27714EC183.taxon	discussion	Remarks. Haswell’s original description of Xenocheira was of a female specimen only, collected in Port Jackson, New SOUTh Wales. MOOre (1988) was The firsT TO describe a male specimen of Xenocheira using material collected from Tasmania. This important contribution established that Xenocheira males are sexually dimorphic. Xenocheira is close to Bemlos Shoemaker, 1925 and Autonoe, which are all sexually dimorphic genera where the propodus of gnathopod 1 is larger in males. Xenocheira and Bemlos can be separated from Autonoe by the carpus of gnathopod 1 being shorter than the propodus in males. Xenocheira differs frOm Bemlos in the presence of an anterior carpal flanGe lined wiTh seTae On GnaThOpOd 2 in bOTh males and females. Xenocheira spp. are similar to Autonoe seurati Chevreux, 1907 which alsO has a flanGe and seTae, wiTh A. seurati being the only Autonoe species with this character state. Xenocheira can be separated from all Autonoe species by the mandibular palp article 3 straight posterodistal margin (versus concave); the gnathopod 1 carpus which is shorter than the propodus (versus subequal) and the uropod 3 rami with long robust and slender setae (versus robust setae only).	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13B9F5D66F1E9EF77FCC0C5.taxon	description	Figs 1 – 6	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13B9F5D66F1E9EF77FCC0C5.taxon	materials_examined	Type locality. Port Jackson, New South Wales, Australia, 33 ° 51 ' S 151 ° 16 ' E. Material examined. Lectotype, female, AM P. 25466, 4 slides, carcass in parts on slides, length unknown, Port Jackson, New South Wales, Australia, 33 ° 51 ' S 151 ° 16 ' E, Australian Museum old collection (pre- 1905), no further details. Possible syntype, female (poor condition, some parts of gnathopods and uropods missing), AM P. 99078, Port Jackson, New South Wales, Australia, 33 ° 51 ' S 151 ° 16 ' E, Keith Sheard Collection (label Cotype. One Co-type mounted. KS). New South Wales: male, 4.9 mm, dissected, 2 slides, AM P. 99086, east of Red Head, 32 ° 03 ' 17 " S 152 ° 33 ' 14 " E, 12.4 m, orange lacy bryozoan (Triphyllozoon? sp.) frOm lOw prOfile rOckY reef wiTh sand GUTTers, 22 March 2003, coll. AM party (NSW 2245); b female, 5.8 mm, 4 slides, AM P. 99087, east of Red Head, 32 ° 03 ' 17 " S 152 ° 33 ' 14 " E, 12.4 m, orange lacy bryozoan (Triphyllozoon? sp.) frOm lOw prOfile rOckY reef wiTh sand GUTTers, 22 March 2003, coll. AM party (NSW 2245); 2 female specimens, AM P. 73749, east of Red Head, 32 ° 03 ' 17 " S 152 ° 33 ' 14 " E), 22 March 2003, coll. AM party (NSW 2263); 2 specimens, AM P. 77259, east of Red Head, 32 ° 03 ' 17 " S 152 ° 33 ' 14 " E, 12.4 m, orange lacy bryozoan (Triphyllozoon? sp.) from lOw prOfile rOckY reef wiTh sand GUTTers, 22 March 2003, cOll. AM parTY (NSW 2245); 4 specimens, AM P. 26103, Sow and Pigs Reef, Port Jackson, 33 ° 50 ' 18 " S 151 ° 16 ' 12 " E, 30 September 1976, Sample 2; 3 specimens, AM P. 77135, Bottle and Glass Rocks, Port Jackson, 33 ° 50 ' 54 " S 151 ° 16 ' 12 " E, 4 m, soft sediment, 23 April 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 102); 1 specimen, AM P. 77276, south west side of Cabbage Tree Island, north east of Port Stephens, 32 ° 41 ' 24 " S 152 ° 13 ' 20 " E, 13.9 m, rocks, 9 March 2006, coll. R. T. Springthorpe (NSW 2889); 1 specimen, AM P. 77279, south west side of Cabbage Tree Island, north east of Port Stephens, 32 ° 41 ' 24 " S 152 ° 13 ' 20 " E, 10.5 m, dead coral rubble, 9 March 2006, coll. K. B. Attwood (NSW 2901); 1 specimen, AM P. 80522, south-west side of Boondelbah Island, east of Port Stephens, 32 ° 42 ' 30 " S 152 ° 13 ' 32 " E, 10 March 2006, coll. A. Murray (NSW 2909); 17 specimens, AM P. 77282, south-west side of Boondelbah Island, east of Port Stephens, 32 ° 42 ' 30 " S 152 ° 13 ' 32 " E, 16 m, rock with coelenterate Acabaria sp., 10 March 2006, coll. A. Murray (NSW 2909); 9 specimens, AM P. 77283, south-west side of Boondelbah Island, east of Port Stephens, 32 ° 42 ' 30 " S 152 ° 13 ' 32 " E, 20 m, under stones, 10 March 2006, coll. R. T. Springthorpe (NSW 2914); 4 specimens, AM P. 77302, sewerage pipeline, Nelson Bay, Port Stephens, 32 ° 43 ' 11 " S 152 ° 08 ' 28 " E, 10 m, mass of intertwined dead algae, 15 March 2006, coll. C. Fraser (NSW 3042); 5 specimens, AM P. 77303, sewerage pipeline, Nelson Bay, Port Stephens, 32 ° 43 ' 11 " S 152 ° 08 ' 28 " E, 8 m, sponges and rubble, 15 March 2006, coll. C. Arango (NSW 3053); many specimens, AM P. 77301, sewerage pipeline, Nelson Bay Port Stephens, 32 ° 43 ' 11 " S 152 ° 08 ' 28 " E, 10.9 m, bottom growth, 15 March 2006, coll. K. B. Attwood (NSW 3038); 3 specimens, AM P. 77295, sloping rock reef with ledges, Esmerelda Cove, Broughton Island, north east of Port Stephens, 32 ° 37 ' 19 " S 152 ° 19 ' 10 " E, 18 – 19.2 m, bushy brown algae from under kelp, 11 March 2006, coll. K. B. Attwood and C. Fraser (NSW 2954); 1 specimen, AM P. 77267, Park Beach BOmmie, easT Of COffs HarbOUr, 30 ° 17 ' 42 " S 153 ° 12 ' E, 14 m, ascidian,? Clavellina sp., 3 May 2005, coll. K. B. Attwood (NSW 2833); 8 specimens, AM P. 77261, Chopper Rock, north-west of North West Solitary Island, 30 ° 00 ' 30 " S 153 ° 15 ' 22 " E, 17 m, ascidian, Herdmania momus, lOw prOfile reef wiTh plaTe cOrals, rOckY reef and paTches Of sand, 29 April 2005, coll. S. J. Keable (NSW 2778); 1 specimen, AM P. 57235, 100 m north-west of Split Solitary Island, 30 ° 14 ' S 153 ° 10 ' 48 " E, 7 March 1992 (NSW 697); male, dissected, 3 slides, AM P. 99090, west side of Box Head, Broken Bay, 33 ° 33 ' S 151 ° 21 ' E, sponge, 22 November 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 171); many specimens, AM P. 99089, west side of Box Head, Broken Bay, 33 ° 33 ' S 151 ° 21 ' E, sponge, 22 November 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 171); male, AM P. 99092, west side of Box Head, Broken Bay, 33 ° 33 ' S 151 ° 21 ' E, sponge Clathria macropora with crinoids, 22 November 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 160); 2 specimens, AM P. 99093, west side of Box Head, Broken Bay, 33 ° 33 ' S 151 ° 21 ' E, bryozoan, 22 November 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 174); 6 specimens, AM P. 99091, west side of Box Head, Broken Bay, 33 ° 33 ' S 151 ° 21 ' E, 15 m, bryozoan, on rocky substrate, small crinoid, Antedon incomoda, 22 November 1982, coll. J. K. Lowry and R. T. Springthorpe (NSW 158). South Australia: 6 specimens (1 male and 5 females), SAMA C 6407, southern Gulf St Vincent, 20 – 40 m, in prawn trawl, May / June 1987, coll. S. Corigliano, FV Rivoli Queen; many specimens, SAMA C 6408, west of Aldinga, 33 ° 16 ' 00 " S 138 ° 27 ' 00 " E, in prawn trawl, 38 – 41 m, 4 – 5 May 1987, RV Rivoli Queen, K. L. Gowlett-Homes and S. Corigliano; 5 specimens (1 male and 4 females), SAMA C 6410, 18.6 miles west norwest of Rapid Head, Gulf St Vincent, 35 ° 31 ' 08 " S 138 ° 10 ' 01 " E, sponges and bryozoans, in prawn trawl, 23 June 1987, coll. K. L. Gowlett-Homes and S. Corigliano, FV Rivoli Queen; many specimens, SAMA C 6409, Beacon, Curlew Point, Upper Spencer Gulf, 32 ° 32 ' 21 " S 137 ° 46 ' 09 " E, 27 – 30 m, Smith McIntyre grab, 14 January 1988, coll. V. Sergeev and E. Oks. Victoria: 5 specimens, NMV J 66436, Crib Point, 38 ° 21 ' S 145 ° 14 ' E, 12 m, 4 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria; 2 specimens, NMV J 66982, Crib Point, 38 ° 21 ' S 145 ° 14 ' E 15 m, 4 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria; 1 specimen, NMV J 66558, Long Island, Hastings, Western Port 38 ° 19 ' S 145 ° 18 ' E 17 m, 4 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria; 2 specimens, NMV J 67096, Long Island, Hastings, Western Port 38 ° 19 ' S 145 ° 14 ' E, 17 m, 4 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria; 3 specimens, NMV J 67228, Steel Wharf, Hastings, Western Port 38 ° 18 ' S 145 ° 11 ' E, 12 m, 5 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria; 5 specimens, NMV J 67251, Steel Wharf, Hastings, Western Port, 38 ° 17 ' S 145 ° 14 ' E, 10 m, 5 March 1997, coll. Marine and Freshwater Research Institute (MAFRI), Victoria. Northern Territory: 1 male and 1 female, AM P. 99094, Van Diemen Rise, eastern Joseph Bonaparte Gulf, Timor Sea, 11 ° 38 ' 10 " S 129 ° 49 ' 06 " E, 27 m, Smith-McIntyre Grab, 12 September 2009, coll. Geoscience Australia (SOL 4934,31 GR 49); 5 specimens (1 male and 4 females), NTM Cr 015900, Dawson Rock, Bynoe Harbour, 12 ° 42 ' 17.38 " S 130 ° 35 ' 33.42 " E, 12 m, sponge sample, 9 June 2003, coll. B. Glasby et al.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13B9F5D66F1E9EF77FCC0C5.taxon	description	Description. Based on female lectotype, AM P. 25466. Head. Lateral cephalic lobes apically blunt, anteroventral margin shallowly excavate to moderately recessed, anterodistal corner weakly produced. Antenna 1 peduncle article 1 posterior margin with robust seta; flagellum unknown. Antenna 2 unknown. Mandible molar triturative; accessory setal row with 6 – 7 setae; palp article 3 subequal 2, length 2.1 × width, anterior margin straight with setae of two lengths. Maxilla 1 inner plate with 1 apical plumose seta; palp 2 - articulate, article 2 broad (turned in illustration), distal end with slender setae and 6 apical robust setae. Pereon. Pereonites 1 – 2 each without sternal process. Gnathopod 1 female simple; basis slender, length 3 × breadth, anterodistal margin subquadrate; ischium posterior margin with slender setae; merus 1.8 × as long as broad, posterior margin with slender setae; carpus rectilinear, length 0.5 × propodus, posterior and midmedial margin with line of long slender setae; propodus length 4 × breadth, proximal end with line of long slender setae, posterior margin straight with line Of lOnG slender seTae, palm weaklY develOped, defined by subquadrate corner with long robust seta; dactylus 0.3 × propodus length, recurved, posterior margin serrate, unguis present. Gnathopod 2 subchelate; basis anterior margin straight; merus 1.6 × as long as broad, posterodistal margin with line of long slender setae; carpus 0.4 × propodus length, anTeriOr marGin wiTh larGe flanGe, anTerOdisTal end wiTh dOUble row of long slender setae, posterior margin with dense cluster of short slender setae; propodus rectilinear, length 4 × breadth, anterodistal end with line of long slender setae, posterodistal end with dense cluster of short slender setae, palm transverse, less Than One fifTh The lenGTh Of pOsTeriOr marGin, wiThOUT rObUsT defininG seTa, dacTYlUs shOrT, recUrved, reachinG end Of palm. Pereopods 5 – 7 (P 5 based on male AM P. 99086) basis margins with plumose setae; ischium and merus slender with patches of slender setae; carpus anterior and posterior margin with short robust setae; propodus posterior margin lined with short robust setae; dactylus recurved, unguis present. Pleon. Epimera 1 – 2 (based on male AM P. 99086) posterodistal corner rounded to subquadrate, ventral margin with plumose setae. Epimeron 3 (based on male AM P. 99086) posterodistal margin rounded. Uropod 1 biramous; peduncle much longer than broad, distoventral interramal spine shorter than peduncle; rami subequal. Uropod 2 biramous; peduncle subequal to inner ramus length, with distoventral interramal spine less than half length of peduncle; inner ramus longer than outer ramus, apical robust setae short. Uropod 3 biramous, peduncle short, 0.6 × rami length; rami subequal, with slender marginal and apical setae. Telson longer than broad, apically excavate with distal slender setae. Male (sexually dimorphic characters). Based on AM P. 99086. Gnathopod 1 male coxa not produced anterodistally; basis broad, length 1.6 × breadth; carpus compressed, length 0.8 × breadth, 0.25 × propodus length, posterior margin with dense long slender setae; propodus expanded, subovate, length 1.5 × breadth, medial surface with line of long slender setae, posterior margin with long slender setae, palm weakly obtuse, proximal shelf long, subquadrate, margin undulating, wiTh excavaTe v-shaped sinUs, defined bY sUbqUadraTe cOrner with strong posterodistal spine, without post palmar robust seta; dactylus not reaching end of palm, posterior margin convex.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13B9F5D66F1E9EF77FCC0C5.taxon	discussion	Remarks. Haswell’s original published description of Xenocheira did nOT inclUde specific nOminaTiOn Of TYpe maTerial, bUT iT is siGnificanT ThaT OnlY a female specimen was described. Australian Museum collections of Xenocheira fasciata thought to be from W. A. Haswell collections include four slides which contain the partial dissection and disjointed carcass of a female. These slides are labelled “ types ” and “? Macleay Museum ”, the institute where Haswell had been based. This material has been considered as a probable syntype, AM P. 25466 (Springthorpe & Lowry, 1994; Lowry & Stoddart, 2003). Moore (1988) mistakenly cited AM P. 25466 as a holotype. Additionally a female specimen among the Australian Museum Keith Sheard Collection labelled “ Co-type. One Co-type mounted. KS ” with a second label “ Xenocheira fasciata Hasw. Port Jackson ” was recently discovered (June, 2016). This material is a possible syntype of the set of slides associated with AM P. 25466. A lectotype of the more complete female specimen is herein designated to stabilize the species name. This study extends the known distribution of X. fasciata to locations in both southern temperate Australian and tropical northern Australia. Material from Bynoe Harbour indicated that X. fasciata is sympatric with X. pirloti. The lobate carpus of gnathopod 2 and long slender seta on the carpus and propodus is seen in X. fasciata, X. pirloti and another aorid, Autonoe seurati (Chevreux, 1907), which is also reported from tropical northern Australia (Myers, 2009). The absence of long slender setae on the basis of gnathopods 1 and 2 separates X. fasciata and X. pirloti from A. seurati.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13B9F5D66F1E9EF77FCC0C5.taxon	distribution	Distribution. AUsTralia. New SOUTh Wales: COffs HarbOUr (current study); Port Stephens (Haswell, 1879; Moore, 1988; current study); Port Jackson (Haswell, 1879; current study); Broken Bay (current study); Twofold Bay (Hutchings, et al., 1989). Victoria: Western Port; Corner Inlet; Crib Point, Hastings (Moore, 1988; current study). South Australia: Gulf St Vincent; Upper Spencer Gulf; west of Aldinga (current study). Tasmania: south-western Bass Strait; Variety Bay, Bruny Island, Freycinet Peninsula (Moore, 1988; current study). Northern Territory: Northwest Shelf; Bynoe Harbour (current study).	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13E9F5D6587EA177126C1BF.taxon	materials_examined	Type locality. Linchang Reef, Hainan Province, South China Sea.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA13E9F5D6587EA177126C1BF.taxon	distribution	Distribution. Known only from type locality.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1309F536736EDA07785C1E9.taxon	description	Figs 7 – 10	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1309F536736EDA07785C1E9.taxon	materials_examined	Type material. Stat. 273, Pulu Jedan, Aru Islands [Iles Aru], 23 – 26 December 1899, shell sand [sable coquillier], 13 m, 3 males. (Material not found, pers. comm. K. Van Dorp January 2016) Material examined. Northern Territory, Australia: 1 a male, 7 mm, dissected, 1 slide, NTM Cr 018973; 1 b male, 7.1 mm, dissected, 1 slide, NTM Cr 018974; 1 c male, 8 mm, dissected, 1 slide, NTM Cr 018975; 1 d male, 9 mm, dissected, 1 slide, NTM Cr 018976.; 1 e female, 9.2 mm, dissected, 1 slide, NTM Cr 018977; 1 f female, 5.4 mm, dissected, 1 slide, NTM Cr 018978; 1 g female, 5 mm, dissected, 1 slide, NTM Cr 018979; 12 specimens (4 male and 6 females), NTM Cr 015901, Dawson Rock, Bynoe Harbour, 12 ° 42 ' 17.38 " S 130 ° 35 ' 33.42 " E, 12 m, sponge sample, 9 June 2003, coll. B. Glasby et al .. 1 male and 4 females, NTM Cr 015886, Table Head, Port Essington, 11 ° 13 ' 30 " S 132 ° 10 ' 30 " E, algae and reef rock, 14 May 1983; 3 male and 2 female specimens, NTM Cr 011679, north of Oliver Reef, Vernon Islands, Beagle Gulf, 12 ° 1.02 ' S 130 ° 58.86 ' E, 30 m, rocky bottom, 11 October 1993, coll. K. E. Coombes, FV Kunmunyah (Beagle Gulf Marine Park Survey). Western Australia: 1 male, 12 mm, and 1 female, 13.2 mm, WAM C 27165, Dampier Archipelago, 20 ° 41 ' S 116 ° 33 ' E, 23 July 1999, coll. S. Slack-Smith (DA 2 / 99 / 68).	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1309F536736EDA07785C1E9.taxon	description	Variation. With increasing size, the male gnathopod 1 propodus becomes less elongate and more bulbous, as the posterior margin reduces and the anterior margin becomes more convex (Fig. 8).	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1309F536736EDA07785C1E9.taxon	discussion	Remarks. PirlOT (1936) idenTified 3 specimens frOm The ArU Islands as Xenocheira fasciata Haswell, 1879. Based on Pirlot’s illustrations of gnathopods 1 and 2, Moore (1988) considered the variation in gnathopod 1 propodus length siGnificanTlY differenT frOm X. fasciata and established the new species name X. pirloti for the Aru Islands material without examining Pirlot’s original specimens. Pirlot’s material from the Siboga Expedition is currently held by the Department Invertebrates, Naturalis Biodiversity Center, Leiden, The Netherlands. Recent contact with the curator for Crustacea, Chelicerata and Myriapoda Karen Van DOrp cOnfirmed ThaT The TYpe maTerial (eiTher slide Or wet preparations) of X. pirloti could not be located and for now is considered presumed lost. Assessment of a large set of tropical Australia collections of Xenocheira pirloti included large adult males, gravid females and a range of smaller specimens has revealed the Aru Islands material are juvenile specimens of indeterminate sex and not adult males. A growth series of material is presented here to demonstrate the full development range of X. pirloti. This present description of additional material of X. pirloti supports this species as distinct from X. fasciata. Xenocheira pirloti is known from tropical waters in northern Australia and the Banda Sea in the Indonesian Archipelago while X. fasciata occurs in temperate waters along east coast and southern Australia including Tasmania. Xenocheira pirloti is most similar to X. fasciata in the male gnathopod 1 propodus palm with sinus. Xenocheira pirloti has an acute gnathopod 1 propodus palm while X. fasciata has an obtuse palm. See also remarks for X. fasciata. Distribution. Indonesia: Pulu Jedan, Aru Islands (Pirlot, 1936). Australia. Northern Territory: Beagle Gulf, Port Essington, Bynoe Harbour, Dampier Archipelago (current study).	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	description	Figs 11, 12	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	materials_examined	Holotype male, 6.4 mm, NTM Cr 011636, west of Elizabeth Reef, Cape Hotham, Beagle Gulf, Northern Territory, Australia, 12 ° 04 ' S 131 ° 20 ' E, 21 m, shale, 9 October 1993, coll. R. S. Williams, FV Kunmunyah (Beagle Gulf Marine Park Survey). Type locality. West of Elizabeth Reef, Cape Hotham, Beagle Gulf, Northern Territory, Australia.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	etymology	Etymology. From the Greek, xandros for sea monster and The sUffix thrix meaning hairy.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	description	Description based on holotype male, 6.4 mm, NTM CR 011636. Head. Lateral cephalic lobes weakly truncate, anteroventral margin shallowly excavate to moderately recessed, anterodistal corner subacute. Antenna 1 peduncle article 1 pOsTeriOr marGin wiThOUT rObUsT seTae; flaGellUm UnknOwn. Antenna 2 unknown. Mandible molar triturative; accessory setal row with 8 setae; palp article 3 longer than 2, length 3.1 × breadth, anterior margin straight with setae of two lengths. Maxilla 1 inner plate with 1 apical plumose seta; palp 2 - articulate, article 2 broad, distal end with slender setae and 6 apical robust setae. Pereon. Pereonites 1 – 2 without sternal process. Gnathopod 1 male coxa not produced anterodistally; basis broad, length 1.9 × breadth; carpus compressed, length 0.8 × breadth, 0.25 × propodus length, posterior margin with dense long slender setae; propodus expanded, subovate, length 1.5 × breadth, posterior margin with long slender setae, palm weakly obtuse, proximal shelf long, subquadrate, margin undulating, distal margin with narrow v-shaped sinus, defined by subquadrate corner with strong posterodistal spine reaching beyond dactylus, without post palmar robust seta; dactylus reaching beyond palm, posterior margin convex with proximal hump. Gnathopod 2 subchelate; basis proximally narrow, distally broad; merus 1.3 × as long as broad; carpus 0.6 × prOpOdUs lenGTh, anTeriOr marGin wiTh larGe flanGe, anterodistal end with double row of long slender setae, posterior margin with dense cluster of short slender setae; propodus rectilinear, length 4 × breadth, anterodistal end with line of long slender setae, posterodistal end with dense cluster Of shOrT slender seTae, palm Transverse, less Than One fifTh The lenGTh Of pOsTeriOr marGin, wiThOUT rObUsT defininG seTa, dactylus short, recurved, reaching end of palm. Pereopods 5 – 7 basis margins with plumose setae; ischium, merus and carpus with patches of slender setae; propodus anterior and posterior margin with short robust and long slender setae; dactylus recurved, unguis present. Pleon. Epimera 1 – 2 posterodistal corner rounded to subquadrate, ventral margin with plumose setae. Epimeron 3 posterodistal margin rounded with distal notch. Uropod 1 biramous; peduncle much longer than broad, distoventral interramal spine shorter than peduncle; rami subequal. Uropod 2 biramous; peduncle subequal to inner ramus length, with distoventral interramal spine less than half length of peduncle; inner ramus longer than outer ramus, apical robust setae of various lengths. Uropod 3 biramous, peduncle short, 0.6 × rami length; rami subequal, with slender marginal and apical setae. Telson longer than broad, apically excavate with distal slender setae.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	discussion	Remarks. Xenocheira xandrothrix sp. nov. and X. fasciata have the male gnathopod 1 palm obtuse, separating them from X. longisetosa and X. pirloti which have a transverse palm. Xenocheira xandrothrix sp. nov. has the male gnathopod 1 propodus with the distal spine extending beyond the dactylus which separates it from all other species in the genus. The gnathopod 1 dactylus is slender and has a proximal tooth on the posterior margin which further separates it from other Xenocheira species.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
811F87CDA1329F56673DE93E7566C750.taxon	distribution	Distribution. Known only from type locality. ACKNOWLEDGMENTS. Thank you to Roger Springthorpe for the image of X. fasciata. Joanne Taylor (MV), Sue Horner (NTM) and Steve Keable (AM) for speedy curation of material. I am grateful to Helen Stoddart and Alan Myers for critical review of the manuscript. This study was made possible through ABRS research grant RF 210 - 19.	en	Hughes, Lauren Elizabeth (2017): Review of Xenocheira Haswell, 1879 (Crustacea: Amphipoda: Aoridae). Records of the Australian Museum 69 (4): 223-236, DOI: 10.3853/j.2201-4349.69.2017.1664, URL: http://dx.doi.org/10.3853/j.2201-4349.69.2017.1664
