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Two new species of flatworms (Platyhelminthes: Polycladida) from the continental slope of the Gulf of Mexico

Published online by Cambridge University Press:  08 August 2008

Sigmer Y. Quiroga ,
D. Marcela Bolaños  and
Marian K. Litvaitis
Sigmer Y. Quiroga
Affiliation:
Department of Zoology, University of New Hampshire, Durham, NH 03824, USA
D. Marcela Bolaños
Affiliation:
Department of Zoology, University of New Hampshire, Durham, NH 03824, USA
Marian K. Litvaitis*
Affiliation:
Department of Zoology, University of New Hampshire, Durham, NH 03824, USA
*
Correspondence should be addressed to: Marian K. Litvaitis, Department of Zoology, University of New Hampshire, Durham, NH 03824, USA email: [email protected]
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Abstract

Two new species of polyclads are described from the continental slope of the Gulf of Mexico. Specimens of Didangia carneyi sp. nov. and Oligocladus bathymodiensis sp. nov. were collected from the Louisiana slope at 610 m and 650 m, respectively. Didangia carneyi sp. nov. was collected from a natural wood fall, and is characterized by the presence of tentacular and cerebral eyes, an interpolated prostatic vesicle provided with two muscular accessory prostatic vesicles, and large glandular cells that surround the male atrium. Oligocladus bathymodiensis sp. nov. has a mouth anterior to the brain, a few cerebral and pseudotentacular eyes, four pairs of intestinal branches, and a ventral anal pore. Specimens of this species were collected on the margin of a hypersaline cold seep in association with mussels of Bathymodiolus childressi. All type material is deposited at the Field Museum of Natural History, Chicago, Illinois, USA.

Keywords

new speciesflatwormscontinental slopeGulf of Mexico
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 88 , Issue 7 , November 2008 , pp. 1363 - 1370
Copyright
Copyright © Marine Biological Association of the United Kingdom 2008

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