Conicostoma karta Lowry & Stoddart, 1983

Lowry, J. K. & Stoddart, H. E., 2012, Australian and South African conicostomatine amphipods (Amphipoda: Lysianassoidea: Lysianassidae: Conicostomatinae subfam. nov.), Zootaxa 3248 (1), pp. 43-65 : 49-50

Conicostoma karta Lowry & Stoddart, 1983

( Fig. 4 )

Conicostoma karta Lowry & Stoddart, 1983: 394 . — Lowry & Stoddart, 1984: 198, figs 5–8. — Barnard & Karaman, 1991: 477. — Springthorpe & Lowry, 1994: 21. — Lowry & Stoddart, 2003: 164.

Material examined. New South Wales: 1 specimen, AM P.77495, north-east side of Little Broughton Island , 32°37'05"S 152°20'06"E, 17 m, Ecklonia holdfasts, 11 March 2006, R. T . Springthorpe , stn NSW 2940; 1 specimen, AM P.77476, north-east side of Cabbage Tree Island , 32°41'06"S 152°13'36"E, 16–17 m, small rocks with brown algae, ascidian Clavelina and sponges, 8 March 2006, S.J. Keable & C. Fraser, stn NSW 2884; 3 specimens, MV J62534 , off Eden , 37°0.60 'S 150°20.70'E, 363 m, coarse shell, WHOI epibenthic sled, 21 July 1986, G.C.B. Poore et al., RV Franklin , stn SLOPE 22 . Victoria: 1 specimen, MV J22342 , 13.3 km east of eastern edge of Lake Tyers , 37°51.70'S 148°14.60'E, 37 m, coarse sand, Smith-McIntyre grab, 4 June 1991, N. Coleman, stn MSL-EG 67; 1 male, AM P.68884, Henty Reef, Apollo Bay , 38°47'S 143°40.5'E, 4.5 m, algae, 25 April 1988, R. T . Springthorpe & P.B. Berents, stn VIC-7; 3 specimens, AM P.68885, north-west side of Henty Reef, Mounts Bay , 38°47'S 143°40.5'E, 18 m, algal holdfasts, 3 May 1988, R. T . Springthorpe & P.B. Berents, stn VIC-65; 1 specimen, J13748 , Crib Point, Western Port , 38°21.63’S 145°15.08’E, 9 m, sand, Smith-McIntyre grab, 23 February 1965, Marine Studies Group, Fisheries and Wildlife Department, Ministry for Conservation , Victoria, CPBS stn 25S. Bass Strait : 1 specimen, MV J 62535 , 100 km north-east of North Point, Flinders Island , 38°52.6'S 148°26.5'E, 140 m, fine sand, epibenthic sled, 15 November 1981, R . Wilson , RV Tangaroa , stn BSS 170S; 9 specimens, MV J62536 , 20 km south-east of Port Albert , 38°43.4'S 146°56.9E, 26 m, epibenthic sled, 18 November 1981, R . Wilson , RV Tangaroa , stn BSS-178S; 1 specimen, MV J62541 , 20 km south-east of Port Albert , 38°43.4'S 146°56.9E, 26 m, Smith- McIntyre grab, 18 November 1981, R . Wilson , RV Tangaroa , stn BSS-178G; 1 specimen, MV J62542 , 26 km south-east of Aireys Inlet , 38°39.8'S 144°18.2'E, 79 m, very fine sand, Smith-McIntyre grab, 19 November 1981, R . Wilson , RV Tangaroa , stn BSS 181G; 1 specimen, MV J7640 , off Currie, King Island , 39°54.7'S 143°43.4'E, 49 m, coarse sand, Smith-McIntyre grab, 21 November 1981, R . Wilson , RV Tangaroa , stn BSS 196G; 6 specimens, MV J62550 , 63 km east of North Point, Flinders Island , 39°44.8'S 148°40.6'E, 124 m, muddy sand, epibenthic sled, 14 November 1981, R . Wilson , RV Tangaroa , stn BSS 167; 1 specimen, MV J62537 , 20 km north-north-east of Bold Head, King Island , 40°00.0’S 144°20.9’E, 48 m, coarse sand, rock dredge, 22 November 1981, R . Wilson , RV Tangaroa , stn BSS-200RD; 3 specimens, MV J62543 , 20 km south-south-west of Babel Island , 40°06.2'S 148°25.0'E, 22 m, coarse shell, dredge, 14 November 1981, R . Wilson , RV Tangaroa , stn BSS-166D; 1 specimen, MV J62544 , 20 km south-south-west of Babel Island , 40°06.8'S 14824.3'E, 22 m, coarse shell, Smith-McIntyre grab, 14 November 1981, R . Wilson , RV Tangaroa , stn BSS-166G; 1 specimen, MV J62545 , 23 km east of Cape Rochon, Three Hummock Island , 40°22.2'S 145°17'E, 40 m, sand, epibenthic sled, 3 November 1980, M. Gomon & G.C.B. Poore, FRV Sarda , stn BSS 112S; 1 specimen, MV J62546 , 9 km south-south-west of Cape Adansan, Three Hummock Island , 40°30.9'S 144°56'E, 27 m, very coarse sand, epibenthic sled, 2 November 1980, M. Gomon & G.C.B. Poore, FRV Sarda , stn BSS 109S . South Australia: 1 specimen, MV J62547 , Tiparra Reef, Tiparra Bay , 34°10'S 137°23’E, 11 m, sand, shell fragments and seagrass, 15 March 1985, G.C.B. Poore & H.M. Lew Ton, stn MV SA-19; 1 specimen, MV J62548 , 1 km off bay on north shore of Flinders Island , 33°41'S 134°31'E, 20 m, Posidonia drift on sand, hand dredge, 19 April 1985, G.C.B. Poore, FV Lemnos, stn MV SA-67; 1 specimen, MV J62549 , The Hotspot Reef, 5 nautical miles west of Flinders Island , 33°40.8'S 134°22.5'E, 21 m, large red algae, 20 April 1985, G.C.B. Poore, stn MV SA-69; 4 specimens, AM P.39219, north-east side of Topgallant Island, Investigator Group , 33°43.0'S 134°36.6'E, 12 m, algae, bryozoans and sponges, 21 April 1985, S. Shepherd & G.C.B. Poore, stn MV SA-81. Western Australia: 4 ovigerous females, MV J11510 , Deepwater Pier, Albany , 35°02.4’S 117°54.2’E, Bryozoa from pier pilings, 5 April 1985, G.C.B. Poore & H.M. Lew Ton, stn SWA-8; 2 specimens, MV J62551 , northeast end of Vancouver Peninsula, King George Sound , 53°03.4’S 117°56.2’E, 3 m, tufted red algae, soft coral and sponges, 8 April 1985, G.C.B. Poore & H.M. Lew Ton, stn SWA-22; 1 specimen, AM P.39220, Ellen Cove, Middleton Bay, King George Sound , 35°01.5'S 117°55'E, 1.5 m, sponges, ascidians and hydroids on jetty, 29 March 1984, J. Just, stn WA-22; 1 specimen, AM P.39221, Vancouver Peninsula, near Mistaken Island, King George Sound , 35°04'S 117°56'E, 3 m, sea grasses, 13 December 1983, J.K. Lowry, stn WA-113; 1 specimen, AM P.39222, same locality, 6 m, sea grass with bryozoan or fine pink algae, 13 December 1983, R. T . Springthorpe , stn WA-120; 2 specimens, AM P.39227, same locality, 6 m, seagrasses, 13 December 1983, R. T . Springthorpe , stn WA-121; 1 specimen, AM P.39223, off Possession Point, King George Sound , 35°02.5'S 117°55'E, 7 m, finger sponges and algae, 14 December 1983, R. T . Springthorpe , stn WA-136; 9 specimens, AM P.39224, rocks near Migo Island, Port Harding, Torbay Bay , 35°04'S 117°39'E, 6.5 m, sponge and algae, 15 December 1983, R. T . Springthorpe , stn WA- 145; 1 specimen, AM P.39225, same locality, 6.5 m, small branched alga with compound tunicate on underside, 15 December 1983, J.K. Lowry & R. T . Springthorpe , stn WA-152; 1 specimen, AM P.78480 and 1 specimen, AM P.78482, Bramble Point, Princess Royal Harbour, Albany , 35°03'S 117°53'E, Posidonia sinuosa , January 1988, P.A. Hutchings, D. Walker & F.E. Wells; 1 specimen, AM P.78481, same data, 2.5 m; 6 specimens, AM P.79455 and 1 specimen, AM P.79456, same data, Posidonia australis ; 1 specimen, AM P.39226, Cathedral Rocks, Rottnest Island , 32°01.5'S 115°27'E, 3 m, orange tunicates under limestone rock overhangs, 21 December 1983, J.K. Lowry, stn WA-247 .

Description. Head concealed by pereonite 1 and coxa 1. Body with many scattered setae; pereon and pleon without dorsal projections, not produced dorsally. Antenna 1 peduncular article 1 without distal projection; accessory flagellum 2-articulate. Mandible accessory setal row with 7 robust setae; molar a setose lobe. Maxilla 1 palp long, 1-articulate. Maxilliped inner plate styliform; outer plate subovate, distomedial margin smooth, with set of small ridges on distolateral margin; palp 4-articulate.

Coxa 1 rounded ventrally. Gnathopod 1 carpus shorter than propodus, subquadrate, anterior margin not produced anterodistally; dactylus regular simple. Gnathopod 2 dactylus inserted in centre of scoop formed by anterior and posterior projections of distal margin of propodus. Pereopod 7 basis, posteroventral corner subquadrate.

Uropod 1 biramous; inner ramus shorter than outer ramus. Uropod 2 biramous; inner ramus shorter than outer ramus. Uropod 3 biramous. Telson laminar, notched.

Remarks. Ovigerous females have no oostegites. They do have penial papillae which suggests that they are protandrous hermaphrodites as described by Lowry & Stoddart (1986) for other conicostomatine species.

Distribution. Southern Australia; 1.5–363 m depth

Figures

FIGURE 4. Conicostoma karta Lowry & Stoddart, 1983. Female, 3 mm, AM P.39219, Investigator Group, Great Australian Bight; secondary male, 2 mm, AM P.39227, King George Sound, Western Australia. Scales represent 0.1 mm.