A new species of Turbanellidae (Gastrotricha, Macrodasyida) from Jamaica, with a key to species of Paraturbanella

Autor: Matteo Dal Zotto, Francesca Leasi, M. Antonio Todaro
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: ZooKeys, Vol 734, Iss , Pp 105-119 (2018)
Druh dokumentu: article
ISSN: 1313-2970
1313-2989
DOI: 10.3897/zookeys.734.23023
Popis: The study falls within the framework of a wider research programme aimed at investigating the gastrotrich diversity of the Tropical North-Western Atlantic (TNWA). A new macrodasyidan gastrotrich is described from fine-medium sand collected at Duncans Bay, Jamaica. The description is based on observations carried out on living specimens using differential interference contrast microscopy. Paraturbanella xaymacana sp. n., the third gastrotrich taxon reported from Jamaica, is a mid-sized species, up to 564 μm long, with a feeble peribuccal swelling. The most obvious autapomorphic traits pertain to the testes and the male pore, both of which are located approximately at mid body, rather than at- or near the pharyngo-intestinal junction as occur in the other species of the genus. Additional differences with congeners are discussed and a key to the Paraturbanella species is provided, in the hope it will be useful to both gastrotrich experts and marine ecologists who discover these microscopic metazoans during their research.
Databáze: Directory of Open Access Journals