Owenia vieitezi, Díaz-Díaz & Parapar & Moreira, 2020

Díaz-Díaz, Oscar Felipe, Parapar, Julio & Moreira, Juan, 2020, Validation of Owenia vieitezi Díaz-Díaz, Parapar & Moreira, a polychaete from the coast of Venezuela (Annelida: Oweniidae), Zootaxa 4729 (1), pp. 145-146 : 145

Owenia vieitezi sp. nov.

ZooBank LSID # CF804316-AC68-4133-8D8A-151D86F3946E

Owenia vieitezi Díaz-Díaz, Parapar & Moreira, 2018: 589–597 , figs. 1–5 [unavailable].

Type material. HOLOTYPE: MNCN 16.01 /18416: Gulf of Venezuela (11°01’69”N, 71°26’15”W) . PARATYPES (from same sample): MNCN 16.01 /18417 (11 complete specimens) ; MNCN 16.01 /18418 (28 incomplete specimens) ; MNCN 16.01 /18419 (two fragments exhibiting regeneration) ; MNCN 16.01 /18420 (two specimens on SEM stub) , MNCN 16.01 /18421 (one specimen on SEM stub) .

Diagnosis. 20 body chaetigers (three thoracic + 17 abdominal). Branchial crown provided with three pairs of tentacles, each with three major ramifications, first very close to crown base, second located at mid-length and third very close to distal end. Total length of crown about 1/2 of thorax length. A pair of minute eyespots located at the base of crown. Junction between thorax and tentacle crown marked by a distinct, straight collar. Relative length of thoracic chaetigers: 1-2-1. Thorax with three pairs of notopodia provided with capillary chaetae, neuropodia absent. First abdominal segment about same length or slightly longer than total thoracic length. Second and third abdominal chaetigers the longest, similar in length. From fifth chaetiger onwards, segments decreasing in length and width. Abdominal notopodia well developed and provided with capillary chaetae; neuropodia consisting of wide, sessile tori with several rows of neurochaetal hooks similar throughout, with shaft ending in two teeth located side by side. Pygidium simple.

Etymology. Named vieitezi , after Dr. José Manuel Viéitez, Universidad de Alcalá de Henares (Madrid, Spain).

Remarks. A full description and figures of O. vieitezi and list of additional non-type material examined is given by Díaz-Díaz et al. (2018).