dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Lepechinella echinata (Chevreux)

Dorbanella echinata Chevreux, 1914:1–4, figs. 1–3.

Lepechinella echinata.–J. L. Barnard, 1962:63, figs. 56, 57.

DIAGNOSIS.–Dorsal teeth as long as coxa 2, pereonite 1 with two teeth, pereonite 2 to pleonite 4 with one tooth, pereonite 4 to pleonite 4 with accessory nobs anterior to main teeth; body sparsely covered with heavy spines especially on nobs; epimera 1–3 straight posteriorly, each with medium to long, straight, sharp, extended tooth turning slightly ventrally, no row of facial setae on epimeron 2; rostrum short, reaching about 33 percent along article 1 of antenna 1, slightly or strongly erect, first cephalic tooth very long, extending about 67 percent along article 1 of antenna 1, second tooth obsolescent; mandibular palp article 3 nearly twice as long as article 1, article 2 about 2.2 times as long as article 3; coxa 1 very long, thin, lanceolate, not bifid, coxa 2 shorter and slightly thicker basally than coxa 1, lanceolate, coxa 3 shorter than coxa 2, weakly bifid, with medium anterior lobe, coxa 4 weakly bifid, coxa 5 with anterior lobe as long as coxa 4, coxa 6 weakly and softly bifid, coxa 7 with scarcely extended, sharp posteroventral corner; accessory flagellum elongate, 1-articulate; telson cleft half to two-thirds its length, each lobe thin and armed apically with long setal spine; inner ramus of uropods 1–3 reaching halfway along outer ramus.

South African specimens have the rostrum more erect, coxae 2–3 thicker and the telson less cleft than specimens from Bay of Biscay.

DISTRIBUTION.–Bay of Biscay, 4380 m; South Africa, 4050 m.
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bibliographic citation
Barnard, J. L. 1973. "Deep-sea Amphipoda of the genus Lepechinella (Crustacea)." Smithsonian Contributions to Zoology. 1-31. https://doi.org/10.5479/si.00810282.133