Kinorhyncha from the Caribbean, with the description of two new species from Puerto Rico and Barbados

Type Article
Date 2019-09
Language English
Author(s) Cepeda Diego1, Pardos Fernando1, Sánchez Nuria1, 2
Affiliation(s) 1 : Departamento de Biodiversidad, Ecología y Evolución, Facultad de Ciencias Biológicas, Universidad Complutense de Madrid (UCM), José Antonio Novais St. 12, 28040, Madrid, Spain
2 : Laboratoire Environment Profond, Institut Français de Recherche pour l’Exploitation de la Mer (IFREMER), Centre Bretagne – ZI de la Pointe du Diable, CS, 10070 – 29280, Plouzané, France
Source Zoologischer Anzeiger (0044-5231) (Elsevier BV), 2019-09 , Vol. 282 , P. 127-139
DOI 10.1016/j.jcz.2019.05.014
WOS© Times Cited 8
Keyword(s) Kinorhynchs, Biodiversity, Meiofauna, Morphology, Taxonomy

Two new kinorhynch species from Puerto Rico (Greater Antilles) and Barbados (Lesser Antilles) are described herein from Dr R. P. Higgins unexamined Caribbean meiofaunal samples, which have been stored in the Smithsonian Institution collections. The species from Puerto Rico, Cristaphyes cornifrons sp. nov., belongs to the class Allomalorhagida, whereas the species from Barbados, Echinoderes barbadensis sp. nov., belongs to the class Cyclorhagida. Cristaphyes cornifrons sp. nov. is easily distinguished from most of its congeners by the presence of lateral terminal spines and the absence of male, sexually dimorphic, ventromedial tubes on segment 2, as only other two species of the genus lack these features. Of these, C. cornifrons sp. nov. may be easily differentiated by its pattern of paradorsal, ventrolateral and ventromedial setae. Echinoderes barbadensis sp. nov. is unique among its congeners by the combined presence of middorsal spines on segments 4–8, lateroventral spines on segments 6–9, lateral accessory tubes on segment 8, lateroventral tubes on segment 5, ventrolateral tubes on segment 2 and type 2 glandular cell outlets in subdorsal position on segment 2 and in midlateral position on segment 4.

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