A New Species and a Review of the Deep-Sea Fish Genus Porogadus (Ophidiidae) from the Western North Atlantic
A new species of deep-sea ophidiid, Porogadus silus, is described from deep water off the Bahamas. It differs from its congeners chiefly in having a relatively shorter and deeper head, absence of preopercular and frontal spines and relatively large scales covering the body. A partial osteological description of P. silus is given. Porogadus is reviewed and a provisional key to species from the western North Atlantic is presented. The species group containing Porogadus that lack well developed head spines and armature is partially revised on the basis of a study of specimens collected from the Atlantic and Pacific oceans. Of the seven nominal species of Porogadus with poorly developed head spines, five are recognized: P. catena (with P. promelas and P. breviceps as synonyms), P. abyssalis, P. gracilis, P. longiceps and P. silus n. sp.
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Document Type: Research Article
Publication date: 01 May 1984
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