Dulichiella australis (Haswell)

Dulichiella australis (Haswell) View in CoL

Figs. 50–53

Melita australis Haswell, 1879a: 264 , pl. 9, figs 6–7.–Haswell,

1882: 252. Melita fresnelii .–Stebbing, 1906: 423 (in part).–Stebbing, 1910a:

596–597, 642.–Chilton, 1921b: 70.–Hale, 1927: 314. Melita appendiculatus .–Stebbing, 1906: 428 (in part). Dulichiella australis .–Karaman & Barnard, 1979: 152.–Barnard

& Barnard, 1983: 668.–Hutchings et al., 1989: 362.

Type material. 5 SYNTYPES, AM G5393; 1 Syntype, AM P3495, Port Jackson, New South Wales, Australia, [approx. 33°51'S 151°16'E], [AM Old Collection]

Additional material examined. Queensland: many specimens, AM P61134, Lizard Island, Queensland, 14°40'S 145°28'E, October 1978. New South Wales: 3 specimens, AM P55002, northeast of Marys Rock, Cook Island, 28°11.42'S 153°34.79'E, tan sponge with large osculi, 18 m, G.D.F. Wilson, 8 June 1993, stn NSW-810. Several specimens, AM P56651; 1 specimen,AM P57284, 100 m north west of Julian Rocks,

Byron Bay, 28°36.8'S 153°37.8'E, rock with finger sponge, 15 m, E.L. Albertson, R.T. Springthorpe & G.D.F. Wilson, 3 March1992, stn NSW- 635. 2 specimens, AM P57684, same locality, erect plate sponge, 15 m, E.L. Albertson, R.T. Springthorpe & G.D.F. Wilson, 3 March1992, stn NSW-639. 5 specimens, AM P57285, same locality, mixed sponges, 17 m, stn NSW-642. 7 specimens, AM P56650, 100 m north west of Split Solitary Island, 30°14.0'S 153°10.8'E, plate coral, solitary ascidian, gorgonian & sponges, 15–17 m, G.D.F. Wilson, 7 March 1992, stn NSW- 687. 4 specimens, AM P57105, same locality, under rock ledges, 15–17 m, R. Gentle (URG), 7 March 1992, stn NSW-697. 4 specimens, AM P57286, same locality, lace bryozoan, 17 m, R.T. Springthorpe & S.J. Keable, 7 March 1992, stn NSW-681. 5 specimens, AM P57287, same locality, sponge, 15–17 m, R.T. Springthorpe, 7 March 1992, stn NSW- 683. 1 specimen, AM P57288, same locality, mixed red algae, 17 m, S.J. Keable, 7 March 1992, stn NSW-693. 3 specimens, AM P27266, Split Solitary Island, [approx. 30°15'S 153°12'E], 10 m, J. Marshall, 23 March 1978. 5 specimens, AM P56653, Coffs Harbour Jetty, Coffs Harbour, 30°18.4'S 153°08.5'E, orange sponge on jetty pilings, 6 m, R.T. Springthorpe, 9 March 1992, stn NSW-729. Several specimens, AM P56654, same locality, Pyura praeputialis on jetty pilings, 8 m, P.B. Berents & S.J. Keable, 9 March 1992, stn NSW-733. Many specimens, AM P56655, same locality, arborescent sponge on jetty

pilings, 7 m, S.J. Keable, 9 March 1992, stn NSW-735. 24♂♂, 26♀♀, AM P57103, same locality, worm tubes encrusted with sponge on jetty pilings, 6 m, R.T. Springthorpe, 9 March 1992, stn NSW-725. 1♂, AM P57104, same locality, coral scrapings on jetty pilings, 6 m, R.T. Springthorpe, 9 March 1992, stn NSW-738. 11♀s, 5♂♂, AM P57289, same locality, coral scrapings on jetty pilings, 6 m, R.T. Springthorpe, 9 March 1992, stn NSW-726. 2 specimens, AM P57290, same locality, Diopatra tubes at base of jetty pilings, 6.5 m, S.J. Keable & R.T. Springthorpe, 9 March 1992, stn NSW-730. 28♀♀, 16♂♂, AM P57291, same locality, finger sponge on jetty pilings, 4 m, R.T. Springthorpe, 9 March 1992, stn NSW-734. Many specimens, AM P61141, same locality, Diopatra tubes at base of jetty pilings, 8.5 m, S.J. Keable, 9 March 1992, stn NSW-728. 1 specimen, AM P56652, 150 m downstream of Fred Hansen Bridge, Boambee Creek, Sawtell, 30°20.4'S 153°05.5'E, exposed flat of sandy mud, 1.2 m, van Veen grab, Australian Museum party, 8 March 1992, stn NSW-724. 25 specimens, AM P3496, Port Stephens, [approx. 32°42'S 152°06'E], [AM Old Collection]. 1 specimen, AM P23158, 500 m east of Burwood Beach, 32°57.52'S 151°44.72'E, coarse sand bottom, 14 m, Shipek collection, Australian Museum Hunter District Water Board Survey, 18 December 1975, stn HDWBS06030101, transect 3. 1♂, AM P53923, west side of Box Head, Broken Bay, 33°33'S 151°21'E, bryozoan on rocky substrate with small crinoid Antedon

incomoda, 15 m, J.K. Lowry & R.T. Springthorpe, 22 November 1982, stn NSW-158. Many specimens, AM P53924, same locality, bryozoan, stn NSW-159. Many specimens, AM P53925, same locality, sponges, stn NSW-165. 4 specimens,AM P53926, same locality, sponge, stn NSW- 166. Several specimens, AM P53927, same locality, stn NSW-167. Many specimens, AM P53928; 1♂, AM P60600; 1♀, AM P60601, same locality, sponge Echinoclathria sp. , stn NSW-173. 4 specimens, AM P22493, east of Long Reef, [approx. 33°44'S 151°22'E], 40 m, Australian Museum Shelf Benthic Survey, 29 June 1972. 2 specimens, AM P22494, same locality, 36 m, 11 May 1972. 5 specimens, AM P22495, same locality, 38 m, 24 August 1972. Many specimens P22488, east of North Head, Port Jackson, [approx. 33°49'S 151°20'E], host sponge: cf Teichonella labrinthica , 21 m Australian Museum Shelf Benthic Survey, 20 February 1973, transect 9. 1 specimen, AM P22489, same locality, host sponge: Polymastea craticia. 1 specimen,AM P22490, same locality, host sponge: Halme gigantea , 25 m, 26 February 1974, transect 07. 3 specimens, AM P22497, same locality, host sponge: Polymastea craticia, 19 m, 19 February 1973, transect 10. 3 specimens, AM P22498, same locality, host sponge: Halme gigantea , 19 m, 19 February 1973 transect 10. 1 specimen, AM P22499, same locality, sponge 19 m, 19 February 1973 transect 10. Many specimens, AM P22501, same locality, host sponge: cf Teichonella labrinthica , 19 m, 19 February 1973 transect 10. 20 specimens, AM P22491, east of North Head, Port Jackson, [approx. 33°49.5'S 151°18'E], 28 m, Australian Museum Shelf Benthic Survey, 13 December 1971. 1 specimen, AM P22492, same locality, among sewage outfall, 12 May 1972. Several specimens,AM P18198, off Sydney Heads, [approx. 33°50'S 151°28'E], 119 m, [AM Old collection]. Many specimens, AM P22496, east of South Head, Port Jackson, [approx. 33°50'S 151°18'E], host sponge: Halme gigantea , 21 m, Australian Museum Shelf Benthic Survey, February 1974, transect 11. 3 specimens, AM P5334, Port Jackson, [approx. 33°51'S 151°16'E], W.A. Haswell, 1918. 8 specimens, AM P61140, north east corner of Clark Island, Port Jackson, 33°51.85'S 151°14.47'E, red algae, 2 m, I. Takeuchi & D. Bray, 17 April 1996, stn NSW-1250. 2♂♂, AM P63067, Brotherson Dock Berth 2, Botany Bay, 33°58.2'S 151°12.6'E, pylon scrapings, 7 m, NSW Fisheries/CRIMP Survey, 22 October 1998, stn BB BD2 P2–7. 1 specimen, AM P63068, Bulk Liquids Berth, Botany Bay, 33°58.5'S 151°12.6'E, pylon scraping, 7 m, NSW Fisheries/CRIMP Survey, 19 October 1998, stn BB BLB P3–7. 2♀♀, AM P63069, Channel Marker 4, Botany Bay, 33°59.3'S 151°12.6'E, pylon scraping, 7 m, NSW Fisheries/CRIMP Survey, 21 October 1998, stn BB CH4 P1–7. 2 specimens, AM P63083, same locality, pylon scraping, 3 m, NSW Fisheries/CRIMP Survey, 21 October 1998, stn BB CH4 P1–3. 3 specimens, AM P58236, outer end of Kurnell Pier, Botany Bay, 34°00.2'S

151°12.5'E, pylon scrapings, 7 m, NSW Fisheries/CRIMP Survey, 21 October 1998, stn BB KP1 P1–7. 1♀, AM P63070, Kurnell Pier (near shoreline), Botany Bay, 34°00.5'S 151°12.7'E, pylon scrapings, 3 m, NSW Fisheries/CRIMP Survey, 21 October 1998, stn BB KP2 P2–3. 1 specimen, AM P2486, 3–4 km off Botany Bay, [approx. 34°05'S 151°15'E], mud, 91–95 m, E.R. Waite on HMCS Thetis , 11 March 1898, stn 37. 1 specimen, AM P2487, 5.5–6.5 km off Wattamolla, [approx. 34°10'S 151°11'E], mud, 99–108 m, E.R. Waite on HMCS Thetis , 22 March 1898, stn 57. 2 specimens, AM P63548, Boat Basin, Wollongong Harbour, 34°25.35'S 150°54.4'E, pylon scrapings, 3 m, NSW Fisheries/ CRIMP Survey, 17 May 2000, stn PK WHB P1–3. 1 specimens, AM P63549, same locality, pylon scrapings, 0.5 m, NSW Fisheries/CRIMP Survey, 17 May 2000, stn PK WHB P2–0. Many specimens, AM P63550 same locality, pylon scrapings, 3 m, NSW Fisheries/CRIMP Survey, 17 May 2000, stn PK WHH. 1 specimens, AM P44306, off Wollongong, 34°26.54'S 150°57.98'E, Globigerina ooze, 50 m, baited trap, J.K. Lowry & K. Dempsey on MV Robin E, 27–28 March, 1994, SEAS project, stn NSW-939. Many specimens, AM P63543, Inflammable Liquids Berth, Port Kembla Outer Harbour, 34°27.95'S 150°54.25'E, pylon scrapings, 7 m, NSW Fisheries/CRIMP Survey, 13 May 2000, stn PK ILB P2–7. 4 specimens,AM P63546, east end No.6 Jetty, Port Kembla Outer Harbour, 34°28.25'S 150°54.1'E, pylon scrapings, 3 m, NSW Fisheries/CRIMP Survey, 14 May 2000, stn PK J6O P1–3. 2 specimens, AM P63547, same locality, pylon scrapings, 7 m, NSW Fisheries/CRIMP Survey, 14 May 2000, stn PK J6O P1–7. Many specimens, AM P63544, south end No.3 Jetty, Port Kembla Outer Harbour, 34°28.6'S 150°54.5'E, pylon scrapings, 3 m, NSW Fisheries/CRIMP Survey, 16 May 2000, PK J3O P2–3. 2 specimens, AM P63545, same locality, pylon scrapings, 7 m, NSW Fisheries/CRIMP Survey, 16 May 2000, stn PK J3O P2–7. 1♂, 1♀, AM P53870, off Moona Moona Creek, Jervis Bay, 35°02.9'S 150°41.0'E, from surface of ascidian Herdmania momus , in Ecklonia bed, 4.5 m, P.B. Berents, 13 November 1981, stn NSW-249. 2 specimens, AM P53871, same locality, Ecklonia holdfasts, 5 m, P. Berents, 15 August 1981, stn NSW-87. 1 specimen, AM P54274, Jervis Bay, 35°03'S 150°44'E, sponge, scallop beds, 17 m, P. Berents, 13 August 1981. Many specimens, AM P30799; many specimens, AM P30800, south east of Tathra Head, 36°45–48'S 150°02–03'E, 64 m, trawl, FRV Kapala , 10 June 1980, stn K80-07-02. 2♂♂, AM P36221, Murrumbulga Point, Twofold Bay, 37°04.7'S 149°53.1'E, subtidal rock platform, 2–9 m, S. Keable & E. Bamber, 11 December 1984, stn Q1. 1 specimen, AM P18318, Twofold Bay, 37°05'S 149°55'E, W.A. Haswell. 108♀♀, 92♂♂, AM P35980, Munganno Point, Twofold Bay, 37°06.2'S 149°55.7'E, subtidal wharf pile, 6 m, S. Keable, 10 October 1984, stn M5. Tasmania: 1♂, AM P60602; many specimens, AM P61142, north side of Esperance

Point, D’Entrecasteaux Channel, Tasmania, 43°19.5'S 147°05.5'E, lace bryozoan, 13 m, S.J. Keable, J.K. Lowry & R.T. Springthorpe, 18 April 1991, stn TAS-186. 3 specimens, AM P61143, same locality, 13 m, S.J. Keable, J.K. Lowry & R.T. Springthorpe, 18 April 1991. 3♀♀, AM P60603, same locality, sponges, lace bryozoan, red algae and? Vittaticella sp. , 13 m, S.J. Keable, J.K. Lowry & R.T. Springthorpe, 18 April 1991, stn TAS-187. South Australia: E6541, 3 specimens, Sanders Bank, Kangaroo Island, [approx. 35°50'S 137°15'E], 51 m, FIS Endeavour, 1909–1914. 3 specimens, AM P5923, same locality. 1 specimen, E4849, Spencer’s Gulf, [approx. 34°00'S 137°00'E], FIS Endeavour, 1909–1914.

Type locality. Port Jackson, New South Wales, Australia, [approx. 33°51'S 151°16'E].

Description. Based on a male, 10 mm, AM P60600 and a female, AM P60601.

Head. Lateral cephalic lobes broad, truncated, lacking notch or slit, anteroventral corner subquadrate. Antenna 1 longer than antenna 2; peduncular article 1 shorter than article 2, with 4 or more robust setae along posterior margin;

flagellum with at least 40 articles; accessory flagellum with 6 articles. Antenna 2 peduncular article 2 cone gland reaching at least to end of peduncular article 3; article 4 subequal to article 5; flagellum with about 12 articles. Mandible palp article 3 rectolinear, setae along both margins and terminal, longer than article 1; article 2 shorter than article 3; article 1 produced distally, shorter than article 2, about as long as broad. Maxilla 1 inner plate with setae mainly terminal.

Pereon. Gnathopod 1 coxa anteroventral corner not produced, posteroventral corner notch present; merus without posterodistal spine; propodus palm nearly transverse, slightly convex or straight, defined by posterodistal corner, without posterodistal robust setae. Gnathopod 2 sexually dimorphic; left and right gnathopods unequal in size; coxa posteroventral corner notch present; (larger) chelate; merus with rounded posteroventral corner; carpus compressed; propodus, distolateral margin with 3 rounded indistinct spines; palm angle obtuse, straight, posterodistal spine absent, without robust setae; dactylus apically blunt; (smaller) subchelate; merus with sharp

posteroventral spine; carpus long; propodus palm straight, without posteroventral spine. Pereopod 5 basis posterior margin straight, posteroventral corner narrowly rounded or subquadrate; carpus and propodus with many long, slender setae along anterior margin; dactylus unguis anterior margin with accessory spine. Pereopod 6 coxa anterior lobe ventral margin slightly produced, rounded; basis posterior margin straight, posteroventral corner narrowly rounded or subquadrate; carpus and propodus with many long, slender setae along anterior margin; dactylus unguis anterior margin with accessory spine. Pereopod 7 basis posterior margin straight or slightly subsigmoidal, with posterior margin smooth or minutely castelloserrate, posteroventral corner narrowly rounded or subquadrate; dactylus unguis anterior margin with accessory spine.

Pleon. Pleonites 1–3 with dorsal serrations, with dorsodistal spine. Epimeron 1 posteroventral corner with small acute spine. Epimera 1–2 posteroventral margin without spines above posteroventral corner. Epimeron 3 posterior margin smooth, posteroventral corner with strongly produced acute

spine. Urosomite 1 with broad dorsal midline gape, rarely bearing midline spines, dorsally bicarinate. Urosomite 2 posterior margin serrate, with two groups of 1–3 small dorsolateral robust setae. Uropod 3 inner ramus scale-like, much shorter than outer ramus; outer ramus much longer (more than 2× length) than peduncle, 2-articulate. Telson without apical robust setae, apical conical extension absent.

Female (sexually dimorphic characters). Gnathopod 2 subchelate; merus with sharp posteroventral spine; carpus short; propodus without medial depression, palm slightly acute, straight or slightly concave, smooth, without robust setae, defined by posterodistal robust setae, defined by posteroventral corner; dactylus apically acute/subacute. Pereopod 7 basis posterior margin straight.

Habitat. Marine; littoral and continental shelf; living among bryozoans, sponges, ascidians and algae, 4.5 to 120 m depth.

Remarks. There are at least two distinctive species of Dulichiella along the east coast of Australia. Their ranges overlap along the Great Barrier Reef. Dulichiella australis

and D. pacifica are easily distinguished by the spines on the distolateral margin of male gnathopod 2. In D. australis there are 3 rounded, rather indistinct spines and in D. pacifica there are 4 acute distinct spines. In addition pereopods 6 and 7 are more setose in D. australis .

Distribution. Queensland: Lizard Island (AM). New South Wales: Julian Rocks, Byron Bay; Marys Rock, Cook Island; Split Solitary Island; Coffs Harbour; Boambee Creek, Sawtell (all AM); Tacking Point (Haswell, 1879a); Manning River (Stebbing, 1910a); Port Stephens; off Burwood Beach; Box Head, Broken Bay; off Long Reef (all AM); Port Jackson (Haswell, 1879a); Clark Island, Port Jackson; Botany Bay; off Wattamolla; off Wollongong; Jervis Bay (all AM); Twofold Bay (Hutchings et al., 1989). Victoria: Western Port (NMV). Tasmania: Esperance Point, D’Entrecasteaux Channel (AM). South Australia: Sanders Bank, Kangaroo Island (Chilton, 1921b); Spencers Gulf (AM).

Australian geographic areas. Northeastern Australia, southeastern Australia, southern Australia.