Lepechinella Stebbing 1908

• Main Authors: Johansen, Per-Otto, Vader, Wim
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2015
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Amphipoda; Dexaminidae; Lepechinella; Iceland
• Online Access: https://doi.org/10.5281/zenodo.3794776; http://treatment.plazi.org/id/AF579D26FFDAFC663105D073693DFEE5

Genus Lepechinella Stebbing, 1908 Lepechinella Stebbing, 1908: 344–346, plate XVI. Dorbanella Chevreux, 1914: 1–4, figs 1–3. Diagnosis The characters given in the diagnosis of the genus Lepechinella by Sittrop & Serejo (2009: 475) are: “Body with projections on the dorsal midline; cephalic tooth divided into two cusps pointed anteriorly; upper lip bilobate; mandible with palp, article 2 of palp of mandible longer than article 3, incisor process dentate, lacinia mobilis dentate, molar triturative; article 2 of palp of maxilla 1 expanded distally; inner plate of maxilla 2 narrower than outer plate; article 2 of palp of maxilliped longer than articles 1 and 3 combined; peraeopods 3 to 7 slender, all articles elongated, except for article 3”. Key to the species of Atlantic and Arctic Lepechinella 1. Peraeon segment 1 without dorsal teeth ……………………………………………………………2 – Peraeon segment 1 with 1 or 2 dorsal teeth (may be small) ……………………………………3 2. Coxal plate 3 clearly bifid; peraeon segment 4 with dorsal tooth …………………………………… ………………………… L. campensis Sittrop & Serejo, 2009. Campos Basin slope, coast of Brazil – Coxal plate 3 not bifid; peraeon segment 4 dorsally smooth ………………………………………… …………………………… L. laurensi Sittrop & Serejo, 2009. Campos Basin slope, coast of Brazil 3. Peraeon segment 1 with a single dorsal tooth … L. skarphedini Thurston, 1980. East Iceland Basin – Peraeon segment 1 with 2 dorsal teeth (may be small) ……………………………………………4 4. Dorsal teeth on peraeon segment 1 small ……………………………………………………………5 – Dorsal teeth on peraeon segment 1 well-developed …………………………………………………6 5. Gnathopod 1 very slender, carpus much longer than propodus; not heavily setose dorsally ……………………………………………………… L. grimi Thurston, 1980. East Iceland Basin – Gnathopod 1 moderately slender, carpus and propodus subequal in length. Heavily setose along dorsal midline … L. hirsuta Sittrop & Serejo, 2009. Campos Basin slope, coast of Brazil 6. Urosome segments 2–3 not fused ……………………………………………………………………7 – Urosome segments 2–3 fused ...