Australian Amphipoda: Eusiridae

J.K. Lowry, P.B Berents & R.T. Springthorpe

Prostebbingia laevis (Haswell)

Pherusa laevis Haswell, 1879: 260, pl. 9, fig. 4.

Apherusa laevis. --Stebbing, 1909: 308. --Stebbing, 1910: 639.

Pontogeneiella laevis. --J.L. Barnard, 1972b: 143.

Prostebbingia laevis. --Barnard & Karaman, 1991: 335.

Type material. SYNTYPE (probable): AM G5396 (according to Springthorpe & Lowry, 1994).

Type locality. Kiama, New South Wales.

Description. Head rostrum obsolete or absent; eyes present, eyes reniform. Body dorsally smooth. Antenna 1 shorter than antenna 2; accessory flagellum present, accessory flagellum minute. Mandible molar columnar, triturative. Lower lip inner lobes present; outer lobes with narrow gap. Maxilla 1 inner plate setose along medial margin. Maxilla 2 inner plate subequal or slightly broader than outer; inner plate with slender medial setae, with oblique row of slender setae.

Peraeon. Gnathopod 1 subchelate; smaller than gnathopod 2; coxa weakly or not produced anteroventrally; carpus not cantilevered, shorter than propodus or subequal in length to propodus, without a lobe; propodus without robust setae along posterior margin (adults); dactylus narrowing distally, apically acute or subacute. Gnathopod 2 not sexually dimorphic. Gnathopod 2 subchelate; carpus not cantilevered, without a lobe, subequal in length to propodus; propodus without robust setae along posterior margin (adults); dactylus narrowing distally, apically acute or subacute. Peraeopods 3-4 propodus simple, with distal slender setae. Peraeopods 5-7 dactyli inner margins smooth or minutely castellate.

Pleon. Pleonites neither tricarinate. Epimeron 3 posteroventral margin smooth, corner acutely produced. Uropod 1 rami subequal in length. Uropod 3 peduncle with dorsal robust setae; rami subequal in length. Telson cleft, without large apical robust setae.

Habitat. Marine.

Depth zones. Littoral.

Distribution. New South Wales: Kiama (Haswell, 1879).

Geographic areas. South-eastern Australia.

Cite this publication as: 'J.K. Lowry, P.B Berents & R.T. Springthorpe (2000 onwards). Australian Amphipoda: Eusiridae. Version: 2 October 2000. https://crustacea.net'.