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A new species of Paracomesoma (Comesomatidae) from Maldives (Indian Ocean) with an emended diagnosis and an updated key of the genus

Published online by Cambridge University Press:  04 September 2014

Federica Semprucci
Federica Semprucci*
Affiliation:
Dipartimento di Scienze della Terra, della Vita e dell'Ambiente (DiSTeVA), Università di Urbino, loc. Crocicchia, 61029Urbino, Italy
*
Correspondence should be addressed to: F Semprucci, Dipartimento di Scienze della Terra, della Vita e dell'Ambiente (DiSTeVA), Università di Urbino, loc. Crocicchia, 61029 Urbino, Italy email: federica.semprucci@uniurb.it
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Abstract

A new species from the subfamily Comesomatinae is described from the back-reef platforms of the central part of the Maldivian archipelago. Paracomesoma susannae sp. nov. is characterized by a large-sized body, very long cephalic sensilla (72–91 µm long), lateral differentiation of punctuations, and, in the males, 19–22 minute precloacal supplements, relatively short spicules (2.3–2.9 anal body diameter) and a hook-like structure in the distal end of the gubernaculum. Paracomesoma susannae sp. nov. is the only species so far described of the genus which appears to have such a low ratio of the outer labial and cephalic sensilla (about 0.02). An emended diagnosis of P. paralongispiculum is proposed, along with an updated and modified key to all the valid species of the genus Paracomesoma.

Keywords

ComesomatinaeParacomesomaidentification keyback-reef platformscoral sedimentsMaldives
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 95 , Issue 2 , March 2015 , pp. 339 - 347
Copyright
Copyright © Marine Biological Association of the United Kingdom 2014 

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