Lepechinella Stebbing 1908
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...
| Main Authors: | , |
|---|---|
| Format: | Other/Unknown Material |
| Language: | unknown |
| Published: |
2015
|
| Subjects: | |
| Online Access: | https://zenodo.org/record/3794776 https://doi.org/10.5281/zenodo.3794776 |
| Summary: | 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 ... |
|---|