Icilius australis Haswell, 1879: 274 Stebbing, 1910: 628 Icilius ovalis Della Valle, 1893: 345 Stebbing, 1906: 707 Icilius australis Icilius danae Stebbing, 1888 Icilius punctatus Haswell, 1879 Revision Of The Iciliidae (Crustacea: Amphipoda) Watson, M. J. Lowry, J. K. Steinberg, P. D. Raffles Bulletin of Zoology 2004 52 2 467 495 3PB2T Haswell, 1879 Haswell 1879 [262,603,749,773] Malacostraca Iciliidae Icilius Animalia Amphipoda 5 472 Arthropoda species australis  ( Figs. 4-6)     Icilius australisHaswell, 1879: 274, pl. 12, fig 2;  Stebbing, 1910: 628, pl. 59c.    Icilius ovalis-  Della Valle, 1893: 345(part);  Stebbing, 1906: 707(part). not  Icilius australis- Barnard & Karaman, 1991: 376, fig. 73, 658, fig. 119c (after Stebbing, 1910, =  Icilius danae Stebbing, 1888), 658, fig. 119h (after Stebbing, 1910, =  Icilius punctatusHaswell, 1879).   Type material. –  Syntypes(probable). 4 ex., AM G5386( Springthorpe& Lowry, 1994).  Material examined. –  New South Wales: 49 ex., AM P54396, on the sponge,  Clathria macroporawith crinoids;  30 ex., AM P54397, on a sponge;  105 ex., AM P54398, on sponges;  7 ex., AM P54399, on a sponge; many ex., AM P54400, on the sponge,  Chondropsissp.;  31 ex., AM P54401, on a sponge;  1 ex., AM P54402, on the crinoid,  Ptilometra australis;  53 ex., AM P54403, on a sponge;  25 ex., AM P54404, on the sponge,  Echinoclathriasp.;  38 ex., AM P54405, on the crinoid,  Ptilometra australis,  15 m;  8 ex., AM P54406, on bryozoans on rocky substrate, small crinoid,  Antedon incomoda,  15 m, west side of Box Head, Broken Bay, 33º33’S 151º21’E, coll. J. K. Lowry& R. T. Springthorpe,  22 Nov.1982.  6 ex., AM P22230,  32 m;  7 ex., AM P22231,  32 m;  2 ex., AM P22232, many ex., AM P22233, many ex., AM P22234,  3 ex., AM P22235,  4 ex., AM P22236,  21 ex., AM P22237,  42 m, east of Long Reef, 33º44’S 151º22’E, AMBS,  2 Feb. 1973.  6 ex., AM P22249,  36 m,  11 May.1972;  10 ex., AM P22250, east of Long Reef, 33º44’S 151º22’E,  38 m, AMBS,  24 Aug.1972.  2 ex., AM P22248,  43 m;  3 ex., AM P22251, 2nautical miles east of Long Point, Long Reef, 33º44.54’S 151º21.30’E,  43 m, AMBS,  27 Apr.1972.  1 ex., AM P22252,  30 m,  25 May 1972;  2 ex., AM P22253, east of North Head, Port Jackson, 33º49.5’S 151º18’E,  20 m, AMBS,  20 Sep.1972.  Manyex., AM P22240,  27 m;  2 ex., AM P22241,  27 m;  30 ex., AM P22239,  19 m; many ex., AM P22244,  19 m; many ex., AM P22246,  19 m; many ex., AM P22247,  19 m;  2 ex., AM P22255,  21 m; many ex., AM P22256,  21 m;  24 ex., AM P22242,  21 m;  3 ex., AM P22245,  21 m;  1 ex., AM P22254, east of North Head, Port Jackson, 33º49’S 151º20’E,  21 m,  Feb.1973.  3 ex., AM P22238,  8 ex., AM P22243, east of North Head, Port Jackson, 33º49’S 151º21’E,  42 m, AMBS,  Feb.1973.  Manyex., AM P3429, Port Jackson, 33º51’S 151º16’E.  1 ex., AM P54154;  1 ex., AM P54155;  11 ex., AM P54160; Bare Island, Botany Bay, 33º59.6’S 151º13.9’E, orange sponge,  9 m, coll. A.G.B. Poore,  4 Nov.1997.  13 ex., AM P54161, Cape Banks, Botany Bay, 34º0.2’S 151º14.9’E, white sponge,  12 m, coll. A.G.B. Poore,  4 Nov.1997.  2 ex., AM P54200, Jibbon Point, Port Hacking, 34º05’S 150º22’E, sponge, rocky substrate,  15 m, coll. J. K. Lowry& R. T. Springthorpe,  13 Aug.1981.  1 ex., AM P2545, 5.5-6.5 kmoff Wattamolla, 34º10’S 151º11’E, mud,  108 m, E. R. Waiteon HMCS  Thetis,  22 Mar.1898.  6 ex., AM P5925, Shoalhaven Bight, 34º52’S 151º00’E,  82 m, FIS  Endeavour, 1909- 1914.  1 ex., AM G933, Jervis Bay, 35º03’S 150º44’E, coll. T. Whitelegge.  1 ex., AM P54152, on an orange sponge;  1 ex., AM P54153, on an orange sponge;  7 ex., AM P54221, on an orange sponge;  16 ex., AM P54222, on a red sponge;  5 ex., AM P54388, on an orange sponge; Burrill Rocks, 35º23.39’S 150º28.24’E,  22 m, coll. A.G.B. Poore& J. K. Lowry,  2 Nov.1997.  1 ex., AM P54201, east of Snapper Point, near Kiola, 35º34.5’S 150º22’E, on the gorgonacean  Mopsellasp.,  20 m, coll. J. K. Lowry& R. T. Springthorpe,  26 Apr.1981.  3 ex., AM P52776, Merimbula Wharf, Merimbula, 36º53.92’S 149º55.64’E, on a yellow-orange erect multilamellate sponge,  9 m, coll. R. T. Springthorpe,  18 May.1995.  Victoria: 1 ex., NMV J44962, near South Channel Fort, Port Phillip Bay.  4 ex., NMV J44937, 15 kmsouth of Port Fairy, 38 32.0’S, 142 28.6’E,  52 mdepth, Western Bass Strait, medium sand, grab, sled or trawl, coll. R. S. Wilsonon RV  Tangaroa,  20 Nov.1981.  1 ex., NMV J26802, 15.5 kmsouthwest of Point Ricardo, 37 53.14’S, 148 28.94’E,  45 mdepth, Eastern Bass Strait, medium sand, Smith-McIntyre grab, coll. N. Colemanon RV  Sarda, Feb.1991.  2 ex., NMV J44934, 35 kmsouth southwest of Cape Otway, 39 06’S, 143 21’E, Western Bass Strait,  59 m, coarse sand, Smith-McIntyre grab/naturalist’s dredge, coll. G.C.B. Pooreon HMAS  Kimbla,  8 Oct.1980.  3 ex., NMV J44961, Westernport Bay.  South Australia: 15 ex., AM E4852, 64 kmwest of Kingston, 36º50’S 139º05’E,  55 m, FIS  Endeavour, 1909-1914.  5 ex., AM P5926, 64 kmwest of Kingston, 36º50’S 139º05’E,  54.8 m, FIS  Endeavour, 1909-1914.  1 ex., AM E4842, 24 kmnorth west of Cape Jervis,  31 m, FIS  Endeavour,  16 Mar. 1909.  2 ex., AM E4855, Sanders Bank, Kangaroo Island, 35º50’S 137º15’E,  51 m, FIS  Endeavour, 1909- 1914.    Typelocality. – Port Jackson, New South Wales, Australia.   Description. –(based on female, AM P54154). Head: length 3 x width; rostrum subacute. Antenna 1 shorter than antenna 2; peduncular article 1 subequal to article 2; accessory flagellum present, accessory flagellum 1-articulate; flagellum 28+ articles. Antenna 2 flagellum 35+ articles. Mandible left incisor with 8 serrations, right incisor with 6 serrations; accessory setal rows: left with 9 setae, right with 9 setae; molar, triturating surface well developed basally; palp article 2 slender, length 3 x breadth, 1.17 x article 3; article 3 slender, straight, not distally falcate. Upper lip apically notched, setose. Lower lip inner lobes present; outer lobes entire; mandibular lobes rounded apically. Maxilla 1 inner plate with 3 apical pappose setae; outer plate with 11 setal-teeth; palp with 11 apical robust setae and many subapical slender setae. Pereon. Pereonite 7 posterodorsal margin curved, with setae along posterior margin. Gnathopods 1 and 2 not sexually dimorphic; simple with long, slender setae along posterior margin. Gnathopod 1 basis 0.61 x carpal length; carpus 1.05 x propodal length. Gnathopod 2 basis 0.67 x carpal length; carpus 1.05 x propodal length. Pereopods 3–4 sexually dimorphic; similar in size to pereopods 5–6; weakly prehensile; basis without midmedial row of vertical pappose setae, without submarginal row of robust setae, with marginal row of pappose setae. Pereopod 3 carpus length 1.84 x breadth; propodus length 3.74 x breadth, 1.53 x carpal length, with 1 row of posterodistal robust setae. Pereopod 4 carpus length 1.79 x breadth; propodus length 3.96 x breadth, propodus 1.75 x carpal length, with 4 rows of posterodistal robust setae. Pereopod 5 coxa with subacute posterodistal corner; basis length 1.49 x breadth, basis with strongly setose posterior margin; carpus without anterodistal bump, with strongly setose posterior margin; propodus length 4.68 x breadth, propodus with strongly setose posterior margin. Pereopod 6 coxa with subacute posterodistal corner; basis length 1.48 x breadth, basis with strongly setose posterior margin; carpus without anterodistal bump, with strongly setose posterior margin; propodus length 4.77 x breadth, propodus with strongly setose posterior margin. Pereopod 7 basis length 0.97 x breadth, with projecting acute posterodorsal corner, with strongly setose posterior margin, posteroventral corner bicuspidate, cusps subequal in size; carpus without anterodistal bump, with strongly setose posterior margin; propodus length 7.14 x breadth, propodus with strongly setose posterior margin.  Fig. 4.  Icilius australisHaswell, 1879: male AM P54152, Burrill Rocks, Ulladulla, N.S.W., Australia. Scales represent 0.5 mm.  Fig. 5.  Icilius australisHaswell, 1879: male AM P54152; female AM P54154; Burrill Rocks, Ulladulla, N.S.W., Australia. Scales for A1- 2 represent 0.5 mm, remainder represent 0.2 mm.  Fig. 6.  Icilius australisHaswell, 1879: female AM P54154; immature male (marked by an asterisk) AM P54152; mature male AM P54153; Burrill Rocks, Ulladulla, N.S.W., Australia. Scales represent 0.5 mm. Pleon. Pleonite 1 posterodorsal margin smooth, without spines or bulges, pleonite 1 with setae along posterior margin, posterolateral margins with two strong spines. Pleonite 2 smooth, without spines or bulges, with setae along posterior margin, posterolateral margin with two strong spines. Pleonite 3 with setae along posterior margin, posterolateral margin with one small lateral spine. Urosomite 1 short, less than 2 x length of urosomite 2. Uropod 1 outer ramus 0.72 x inner ramus. Uropod 2 outer ramus 0.63 x inner ramus. Uropod 3 peduncle with well developed distomedial flange; outer ramus 0.26 x inner ramus; inner ramus with proximal setal fan. Telsonlonger than broad, tapering distally, with large apical setae. AM Springthorpe & Lowry 5 472 G5386 4 syntype AM New South Wales 5 472 P54396 49 New South Wales AM 5 472 P54397 30 New South Wales [239,562,1248,1269] AM 5 472 P54398 105 New South Wales AM 5 472 P54399, P54400 7 New South Wales [155,484,1306,1327] AM 5 472 P54401 31 New South Wales AM 5 472 P54402 1 New South Wales [401,719,1335,1356] AM 5 472 P54403 53 New South Wales AM 5 472 P54404 25 New South Wales AM 15 5 472 P54405 38 New South Wales 1982-11-22 AM, R, T J. K. Lowry Box Head 15 -33.55 Springthorpe 1204 151.35 Broken Bay 5 472 P54406 8 New South Wales AM 32 5 472 P22230 6 New South Wales [336,567,1508,1529] AM 32 5 472 P22231 7 New South Wales AM 5 472 P22232, P22233, P22234 2 New South Wales [570,748,1536,1557] AM 5 472 P22235 3 New South Wales [113,295,1565,1586] AM 5 472 P22236 4 New South Wales 1973-02-02 AM, AMBS 42 -33.733334 Long Reef 1203 151.36667 5 472 P22237 21 New South Wales 1972-05-11 AM 36 5 472 P22249 6 New South Wales 1972-08-24 AM, AMBS 38 -33.733334 Long Reef 1203 151.36667 5 472 P22250 10 New South Wales [502,748,1652,1673] AM 43 5 472 P22248 2 New South Wales 1972-04-27 AM, AMBS 43 -33.742332 Long Reef 11 151.355 Long Point 5 472 P22251, 2 3 New South Wales 1972-05-25 AM 30 5 472 P22252 1 New South Wales 1972-09-20 AM, AMBS 20 -33.825 Port Jackson 773 151.3 North Head 5 472 P22253 2 New South Wales AM Many 27 5 472 P22240 1 New South Wales [364,623,1796,1817] AM 27 5 472 P22241 2 New South Wales AM 19 5 472 P22239, P22244, P22246, P22247 30 New South Wales AM 21 5 472 P22255, P22256 2 New South Wales [364,635,1882,1903] AM 21 5 472 P22242 24 New South Wales AM 21 5 472 P22245 3 New South Wales 1973-02 AM 21 -33.816666 Port Jackson 1203 151.33333 North Head 5 472 P22254 1 New South Wales [464,645,1940,1961] AM 5 472 P22238 3 New South Wales 1973-02 AM, AMBS 42 -33.816666 Port Jackson 1203 151.35 North Head 5 472 P22243 8 New South Wales AM -33.85 Port Jackson 1202 151.26666 Many 5 472 P3429 1 New South Wales [221,414,2026,2047] AM 5 472 P54154 1 New South Wales [428,621,2026,2047] AM 5 472 P54155 1 New South Wales 1997-11-04 AM A. G. B. Poore 9 -33.993332 Botany Bay 119 151.23167 Bare Island 5 472 P54160 11 New South Wales 1997-11-04 AM A. G. B. Poore 12 -34.003334 Botany Bay 119 151.24834 Cape Banks 5 472 P54161 13 New South Wales 1981-08-13 AM, R, T J. K. Lowry Jibbon Point 15 -34.083332 Springthorpe 1201 150.36667 Port Hacking 5 472 P54200 2 New South Wales 1898-03-22 AM, R, HMCS Waite 108 -34.166668 Wattamolla 1200 151.18333 5 472 P2545 1 New South Wales AM Endeavour 82 -34.866665 Shoalhaven Bight 1197 151.0 5 472 P5925 6 New South Wales AM, T Whitelegge -35.05 Jervis Bay 1195 150.73334 5 472 G933 1 New South Wales [938,1340,423,444] AM 5 472 P54152 1 New South Wales AM 5 472 P54153 1 New South Wales AM 5 472 P54221 7 New South Wales [895,1256,481,502] AM 5 472 P54222 16 New South Wales 1997-11-02 AM A. G. B. Poore & J. K. Lowry 22 -35.38983 Burrill Rocks 11 150.47067 5 472 P54388 5 New South Wales 1981-04-26 AM, R, T J. K. Lowry Snapper Point 20 -35.575 Springthorpe 758 150.36667 Kiola 5 472 P54201 1 New South Wales 1995-05-18 AM, R, T Merimbula Wharf 9 -36.898666 Springthorpe 11 149.92734 Merimbula 5 472 P52776 3 New South Wales NMV Port Phillip Bay South Channel Fort 5 472 J44962 1 Victoria 1981-11-20 NMV, R, RV S. Wilson 52 -38.533333 Western Bass Strait 117 142.47667 Port Fairy 5 472 J44937 4 Victoria 1991-02 NMV, RV N. Coleman 45 -37.885666 Eastern Bass Strait 11 148.48233 Point Ricardo 5 472 J26802 1 Victoria 1980-10-08 NMV G. C. B. Poore 59 -39.1 Western Bass Strait 1171 143.35 Cape Otway 5 472 J44934 2 Victoria [914,1284,999,1020] NMV Westernport Bay 5 472 J44961 3 Victoria AM Endeavour 55 -36.833332 Kingston 1185 139.08333 5 472 E4852 15 South Australia AM Endeavour 55 -36.833332 Kingston 1185 139.08333 5 472 P5926 5 South Australia 1909-03-16 AM 31 Endeavour Cape Jervis 5 472 E4842 1 South Australia AM Endeavour 51 -35.833332 Kangaroo Island 1191 137.25 Sanders Bank 5 472 E4855 2 South Australia [813,1393,1258,1279] Australia Port Jackson 5 472 1 New South Wales holotype