New genus and species of calanoid copepods (Crustacea) belonging to the group of Bradfordian families collected from the hyperbenthic layers off Japan.

ABSTRACT: A new genus and species of calanoid copepods belonging to the group of Bradfordian families, Pogonura rugosa gen. et sp. nov., is described from the deep-sea hyperbenthic layers off Nagannu Island, Okinawa Prefecture, southwestern Japan. Pogonura gen. nov. is similar to another Bradfordian genus Procenognatha in sharing the following characteristics: (1) segmentation of the antennule, fused segments II-IV, X-XI, XXVII-XXVIII in females and II-IV, X-XII, XXVII-XXVIII, right XXII-XXIII in males; (2) retained setae on the ancestral segments I-IV of the antennary exopod; (3) setules on the mandibular gnathobase; (4) 3 sclerotized setae on the maxillary endopod; (5) absence of sensory seta on the maxilliped; (6) large spinules on the posterior surface of the r

SUBMITTER: Komeda S 

PROVIDER: S-EPMC7390800 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature