Document Type

Article

Publication Date

1988

Publication Title

Proceedings of the Biological Society of Washington

ISSN

0006-324X

Volume

101

Issue/No.

3

First Page

614

Last Page

621

Abstract

A new family of haustorioid Amphipoda resembling the Phoxocephalopsidae and Urothoidae has been discovered in sands of the surf zone off Rio de Janeiro, Brazil. Like the recently described Cheidae, the new speciesgenus- family combines various characters of haustorioids in a unique manner and bears one unprecedented apomorphic character: an alate, uncleft telson.

The new taxon has the following characters of Urothoidae: antenna 2, head, and distal parts of pereopods but has a distinctive antenna I, coxae 1-2, mandibular palp, telson and epimera 1-2. Ipanema has the following characters of Phoxocephalopsidae: coxae, mandibles, and uropod I but has distinctive antennae 1-2, epimera 2-3, pereopods 5-7 and telson. The taxon has some characters found mostly or only in Urohaustoriidae, such as epimera 2-3, but differs in many ways from that family, such as: head, antennae 1-2, parts of mandibles and maxillipeds, maxilla I, parts of pereopods 3-7, epimeron I, and especially uropods 1-2.

Comments

©The Authors

Additional Comments

NSF grant #: BSR-8515168

Peer Reviewed

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