Renella, Lowry & Stoddart, 2012

Lowry, J. K. & Stoddart, H. E., 2012, The Pachynidae fam. nov. (Crustacea: Amphipoda: Lysianassoidea) 3246, Zootaxa 3246 (1), pp. 1-69: 53-54

publication ID

http://doi.org/ 10.11646/zootaxa.3246.1.1

DOI

http://doi.org/10.5281/zenodo.5251286

persistent identifier

http://treatment.plazi.org/id/456087D3-3611-FFBC-B8DF-0F7CFAE34C4C

treatment provided by

Felipe

scientific name

Renella
status

gen. nov.

Renella   gen. nov.

Type species. Drummondia sculptidentata Ren   in Ren & Huang, 1991.

Etymology. The generic name is based on the name of the author of the type species, Dr Xiang Ren.

Diagnostic description. Body shape slender. Head lateral cephalic lobe large, broadly rounded. Antenna 1 peduncular article 1 with posterodistal spine; accessory flagellum article 1 short; flagellum with callynophore in female. Mandible with accessory setal row present on both sides; left lamina dentata absent; palp attached distally; palp article 2 broad, article 3 with anterior margin convex, not tapered distally. Maxilla 1 outer plate setalteeth with medial cusps, STA–STD present; palp vestigial, 2-articulate. Maxilliped inner plate small; outer plate large; palp 4-articulate, article 4 large. Gnathopod 1 ischium smaller than propodus; corner of palm with complex robust seta. Gnathopod 2 palm transverse. Epimeron 3 posteroventral corner broadly rounded. Uropod 3 biramous.

Species composition. Renella sculptidentata   (Ren in Ren & Huang 1991).

Remarks. Renella   has a vestigial maxilla 1 palp, similar to Coriolisa   , Prachynella   and Sheardella   . It differs from Coriolisa   and Prachynella   in having a well-developed fourth article on the maxillipedal palp. Renella   and Sheardella   have a number of significant differences, but can be easily distinguished by uropod 3 which is biramous in Renella   and uniramous in Sheardella   . Renella   is currently a monotypic genus confined to Antarctic waters.