Mediterranean Amphipoda: Aoridae

R. King & A.A. Myers

Autonoe catalaunica Ruffo, Cartes & Sorbe, 1999: 343-352, figs.1-4.

Type material. HOLOTYPE: Male, 5.5 mm, MVRCr 380.

Type locality. Catalan Sea slope (NW Mediterranean).

Description. Based on Ruffo, Cartes & Sorbe, 1999:343-352, figs.1-4.

Head. Lateral cephalic lobes apically round, anteroventral margin moderately excavate, scarcely recessed. Labium with fine setae only. Maxilla 1 inner plate without setae. Maxilliped basis without strong flange on anterior margin. Mandible, palp article 3 subequal to 2, posterior margin strongly falcate or straight or weakly falcate, mandible palp posterior margin setae of more than two distinct lengths.

Peraeon. Sternal spines present, on other pereonites, apically acute. Gnathopod 1 enlarged in males only; coxa distinctly produced anterodistally, acute; basis slender, much less than half as broad as long, without a spine, anterior margin without stridulating ridges, posterodistal margin with setae sparse or absent, anterodistal margin with strong flange, with a weak distomedial lobe or absent; ischium anterior margin without flange, posterior margin with setae sparse or absent; merus not greatly elongated, fused along its entire length with carpus, posterior margin with sparse setae or setae absent, without posterodistal spine; carpus two thirds length of propodus, anterior margin without stridulating ridges, with setae sparse or absent, anterior surface with no spine, without an oblique row of long setae on medial face, posterior margin with stout spine or spines, one spine; propodus longer than carpus, anterior margin weakly to moderately setiferous, posterior margin straight or evenly convex, palm present, palm delimited from posterior margin, margin forming a narrow sinus, palm defined by strong posterodistal spine, with robust seta defining palm, with spine near base of dactylus, with subtriangular, apically acute spine; dactylus more than half length of propodus, significantly overlapping palm. Gnathopod 2 subchelate; basis anterodistal margin without flange, posterodistal margin without robust setae; with few setae along length of basis; carpus subequal with or shorter than propodus, anterior margin not lobate, moderately to sparsely setiferous; propodus moderately to sparsely setose, palm with robust seta(e) defining palm. Pereopod 6 basis not or weakly produced posterodistally.

Pleon. Uropod 1 biramous, rami rami subequal, peduncle much longer than broad, distoventral interramal spine shorter than peduncle. Uropod 2 peduncle with distoventral interramal spine. Uropod 3 biramous, outer ramus shorter than inner, inner ramus twice length of peduncle. Telson with distal robust setae only.

Habitat. Unknown.

Depth zones. Continental shelf (100 to 400m).

Distribution. Mediterranean.

Peraeon. Sternal spines absent. Gnathopod 1 palm evenly continuous with posterior margin, margin entire, palm defined by rounded or oblique corner or corner undefined.

Cite this publication as: 'King, R. & A.A. Myers (2001 onwards). Mediterranean Amphipoda: Aoridae. Version 1: 1 September 2001. https://crustacea.net/'. Dallwitz (1980) and Dallwitz, Paine and Zurcher (1993, 1995, 2000) should also be cited (see References).

Index