Australian Amphipoda: Ampeliscidae

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

Ampelisca dimboola Lowry & Poore

Ampelisca dimboola Lowry & Poore, 1985: 271, figs 11-12.

Type material. HOLOTYPE: female, 10.0 mm, AM P23172. PARATYPES: 1 specimen, AM P23166; 1 specimen, AM P23170; 1 specimen, AM P23173; 1 specimen, AM P23174.

Type locality. East of Burwood Beach, New South Wales (32º 57.5'S 151º 44.7'E), fine sand, 22 m depth.

Description. Based on Lowry & Poore, 1985: 271, figs 11-12. Head longer than deep; rostrum absent; abutting antenna 1; lateral cephalic lobe absent; anteroventral margin oblique; eyes present, two pairs with cuticular lenses. Antenna 1 short, subequal to or slightly shorter than peduncle of antenna 2; peduncular article 2 short (less than 1.5 x length of article 1). Mandible palp article 2 tapering distally.

Peraeon. Coxae 1 to 3 with small posteroventral hooks on coxae 1 to 3. Gnathopod 1 simple; propodus palm absent; coxa anterior margin slightly concave, anteroventral corner not produced. Peraeopods 5 and 6 carpus long, about 3 x as long as broad, slightly or not produced along posterior margin of propodus. Peraeopod 7 basis expanded posteriorly, posterior margin oblique, ventral margin densely setose, free anterior margin lacking setae near junction with ischium; ischium longer than merus; merus anterior lobe slightly produced along anterior margin of carpus, merus posterior lobe absent; carpus anterior lobe slightly produced, short (about as long as broad); propodus inflated; dactylus broad at base, tapering distally.

Pleon. Epimeron 3 posteroventral margin oblique, convex, corner with notch and cusp, corner acute. Urosomite 1 distally upturned carina. Uropod 2 inner ramus with one dorsal row of robust setae; outer ramus with a large subterminal robust seta. Uropod 3 rami, inner margins smooth proximally; outer ramus broadly lanceolate. Telson longer than broad, moderately cleft, distal margin subacute, with mid-dorsal slender setae, inner margin without robust setae along inner margin, distal margin with subapical setae.

Habitat. Marine; sand to fine sand bottoms.

Depth zone. Littoral (0 to 30 m) to Continental shelf (30 to 200 m).

Distribution. New South Wales: east of Burwood Beach; Pittwater; east of Malabar; Moona Moona Creek, Jervis Bay (Lowry & Poore, 1985); Twofold Bay (Hutchings, et al., 1989). Victoria: Ninety-mile Beach; Seaspray (Lowry & Poore, 1985).

Geographic areas. South-eastern Australia.

Cite this publication as: 'J.K. Lowry, P.B Berents & R.T. Springthorpe (2000 onwards). Australian Amphipoda: Ampeliscidael. Version: 21st September 2000.'.