dcsimg

Comprehensive Description

provided by Smithsonian Contributions to Zoology
Lepechinella manco

DIAGNOSIS.–All dorsal teeth about half length of coxa 2, pereonite 1 with two teeth, pereonite 2 to pleonite 4 with one main tooth, one or two accessory nodules present on pereonites 2–7, pleonites 1–3 with two or three accessory nodules, none on pleonite 4; body covered with heavy articulate spines; epimera 1–3 posteriorly convex, each with long, thin, sharp posteroventral tooth, epimeron 3 with facial row of spines; epimeron 1 with subventral facial row of heavy setae; rostrum very long, extending along 87 percent of article 1 on antenna 1, both cephalic teeth about half as long as rostrum; mandibular palp article 3 twice as long as article 1, article 2 twice as long as article 3; coxa 1 bifid one-third its length, coxae 2–4 with angular anterior bulge, coxa 2 as long as coxa 1, sharply tapering, coxa 3 asymmetrically bifid, anterior limb long and sharp but shorter than coxa 2, coxa 4 sharply and slightly asymmetrically bifid, coxa 5 with long sharp anterior limb, no posterior limb, coxa with weak, rounded anterior limb, coxa 7 with long thin sharp posteroventral tooth; accessory flagellum slightly elongate, 1–articulate; telson cleft halfway, each lobe with long apical spine and long lateral spine; inner ramus of uropod 1 slightly shortened; outer ramus of uropod 2 extending 67 percent along inner ramus; inner ramus of uropod 3 slightly shortened.

DESCRIPTION.–Mouthparts as shown for Lepechinella occlo, new species, but lobes of upper lip slightly more asymmetrical, mandibular palp with two terminal and three or four subterminal setae on article 3; outer plate of maxilliped with five or six spines on inner margin; accessory flagellum of medium elongation, longer than shown for L. occlo.

HOLOTYPE.–AMNH, female, 5.4 mm.

TYPE-LOCALITY.–Vema 14–49, northwest of Crete, 35°46′N, 23°28′E, 843 m, 7 October 1958.

MATERIAL.–Six specimens from the type-locality.

RELATIONSHIP.–This species differs from L. echinata (Chevreux, 1914) in the elongate rostrum, long second cephalic tooth, bifid coxa 1, long coxa 3, elongate inner rami of uropods 1 and 3, and the short outer ramus of uropod 2.

DISTRIBUTION.–Mediterranean Sea, 843 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