Pertsovius Andronov & Kosobokova, 2011, gen. nov. ...

• Main Authors: Andronov, Vladimir N., Kosobokova, Ksenia N.
• Format: Text
• Language: unknown
• Published: Zenodo 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Maxillopoda; Calanoida; Discoidae; Pertsovius; Arctic; Arctic Ocean; Copepods
• Online Access: https://dx.doi.org/10.5281/zenodo.6182131; https://zenodo.org/doi/10.5281/zenodo.6182131

Genus Pertsovius gen. nov. Diagnosis. Small calanoid copepods with body length seldom exceeding 1 mm. Prosome of females of oval shape, anterior head rounded. Cephalon fully or partly separated from first pediger, fourth and fifth pedigers completely fused. Urosome consisting of four free somites. Genital double somite usually expanded laterally and protruding ventrally, frequently forming very large fold. Caudal rami usually of unequal lengths, longer on left; each bearing four setae, with outer setae shorter and thinner than others; outer seta on left ramus usually longer and thicker than corresponding seta on right one. Rostrum large, obtusely rounded, directed ventrally, without filaments. Antennule consisting of 24–25 free segments, with ancestral segments I–III fused, segments IX–XI separate, distal ancestral segments XXVI and XXVII + XXVIII often fused, but in Disco fiordicus Fosshagen, 1967 and D. oceanicus Gordejeva, 1974 segments XXVI and XXVII + XXVIII separate. Antenna, mandible, maxillule and ... : Published as part of Andronov, Vladimir N. & Kosobokova, Ksenia N., 2011, New species of small, bathypelagic calanoid copepods from the Arctic Ocean: Brodskius arcticus sp. nov. (Tharybidae) and three new species of Pertsovius gen. nov. (Discoidae), pp. 33-46 in Zootaxa 2809 on pages 38-39, DOI: 10.5281/zenodo.208016 ...