Icilius australis Haswell, 1879

Watson, M. J., Lowry, J. K. & Steinberg, P. D., 2004, Revision Of The Iciliidae (Crustacea: Amphipoda), Raffles Bulletin of Zoology 52 (2), pp. 467-495 : 472-476

publication ID

https://doi.org/ 10.5281/zenodo.13244245

persistent identifier

https://treatment.plazi.org/id/039887A2-FF9F-FFB1-FEAE-FD14FF25FB2A

treatment provided by

Felipe

scientific name

Icilius australis Haswell, 1879
status

 

Icilius australis Haswell, 1879 View in CoL

( Figs. 4-6 View Fig )

Icilius australis Haswell, 1879: 274 View in CoL , pl. 12, fig 2; Stebbing, 1910: 628, pl. 59c.

Icilius ovalis View in CoL - Della Valle, 1893: 345 (part); Stebbing, 1906: 707 (part).

not Icilius australis View in CoL - Barnard & Karaman, 1991: 376, fig. 73, 658, fig. 119c (after Stebbing, 1910, = Icilius danae Stebbing, 1888 View in CoL ), 658, fig. 119h (after Stebbing, 1910, = Icilius punctatus Haswell, 1879 View in CoL ).

Type material. – Syntypes (probable). 4 ex., AM G5386 (Springthorpe & Lowry, 1994) .

Material examined. – New South Wales: 49 ex., AM P54396 , on the sponge, Clathria macropora with 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, Chondropsis sp .; 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, Echinoclathria sp .; 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 GoogleMaps . 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 GoogleMaps . 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 GoogleMaps . 2 ex., AM P22248 , 43 m ; 3 ex., AM P22251 , 2 nautical miles east of Long Point, Long Reef , 33º44.54’S 151º21.30’E, 43 m, AMBS, 27 Apr.1972 GoogleMaps . 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 GoogleMaps . Many ex., 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 GoogleMaps . 3 ex., AM P22238 , 8 ex., AM P22243 , east of North Head, Port Jackson , 33º49’S 151º21’E, 42 m, AMBS, Feb.1973 GoogleMaps . Many ex., AM P3429 , Port Jackson , 33º51’S 151º16’E GoogleMaps . 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 GoogleMaps . 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 GoogleMaps . 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 GoogleMaps . 1 ex., AM P2545 , 5.5-6.5 km off Wattamolla , 34º10’S 151º11’E, mud, 108 m, E. R. Waite on HMCS Thetis , 22 Mar.1898 GoogleMaps . 6 ex., AM P5925 , Shoalhaven Bight , 34º52’S 151º00’E, 82 m, FIS Endeavour, 1909- 1914 GoogleMaps . 1 ex., AM G933 , Jervis Bay , 35º03’S 150º44’E, coll. T. Whitelegge GoogleMaps . 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 GoogleMaps . 1 ex., AM P54201 , east of Snapper Point, near Kiola, 35º34.5’S 150º22’E, on the gorgonacean Mopsella sp. , 20 m, coll. J. K. Lowry & R. T. Springthorpe , 26 Apr.1981 GoogleMaps . 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 GoogleMaps . Victoria: 1 ex., NMV J44962 About NMV , near South Channel Fort, Port Phillip Bay . 4 ex., NMV J44937 About NMV , 15 km south of Port Fairy, 38 32.0’S, 142 28.6’E, 52 m depth, Western Bass Strait , medium sand, grab, sled or trawl, coll. R. S. Wilson on RV Tangaroa , 20 Nov.1981 GoogleMaps . 1 ex., NMV J26802 About NMV , 15.5 km southwest of Point Ricardo, 37 53.14’S, 148 28.94’E, 45 m depth, Eastern Bass Strait , medium sand, Smith-McIntyre grab, coll. N. Coleman on RV Sarda, Feb.1991 GoogleMaps . 2 ex., NMV J44934 About NMV , 35 km south 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. Poore on HMAS Kimbla , 8 Oct.1980 GoogleMaps . 3 ex., NMV J44961 About NMV , Westernport Bay . South Australia: 15 ex., AM E4852 , 64 km west of Kingston , 36º50’S 139º05’E, 55 m, FIS Endeavour, 1909-1914 GoogleMaps . 5 ex., AM P5926 , 64 km west of Kingston , 36º50’S 139º05’E, 54.8 m, FIS Endeavour, 1909-1914 GoogleMaps . 1 ex., AM E4842 , 24 km north 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 GoogleMaps .

Type locality. – 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.

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. Telson longer than broad, tapering distally, with large apical setae.

AM

Australian Museum

R

Departamento de Geologia, Universidad de Chile

T

Tavera, Department of Geology and Geophysics

NMV

Museum Victoria

RV

Collection of Leptospira Strains

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Amphipoda

Family

Iciliidae

Genus

Icilius

Loc

Icilius australis Haswell, 1879

Watson, M. J., Lowry, J. K. & Steinberg, P. D. 2004
2004
Loc

Icilius australis

Stebbing, T 1910: 628
1910
Loc

Icilius ovalis

Stebbing, T 1906: 707
Della Valle, A 1893: 345
1893
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF