Zoological Studies

Vol. 46 No. 3, 2007

Jengalpheops rufus gen. nov., sp. nov., a New Commensal Alpheid Shrimp from the Philippines (Crustacea: Decapoda)

Arthur Anker1,* and Peter C. Dworschak2

1Smithsonian Tropical Research Institute, Naos Unit 0948, APO AA 34002-0948, USA
2Dritte Zoologische Abteilung, Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria.  E-mail:Peter.Dworschak@nhm-wien.ac.at

Arthur Anker and Peter C. Dworschak (2007) Jengalpheops rufus gen. nov., sp. nov., is described on the basis of several specimens collected on intertidal sand and mud flats of Panglao I., the Philippines.  The uniformly reddish shrimps inhabit burrow mounds of the large callianassid mudshrimp, Glypturus armatus (A. Milne Edwards, 1870).  Jengalpheops is defined mainly by the dorsally exposed eyestalks; the absence of orbital teeth; the short triangular rostrum; the unspecialized and feebly enlarged chelipeds, with comb-like rows of setae on the carpus and without snapping mechanism on the fingers; the 3rd maxilliped with styliform lateral plate; and the presence of strap-like epipods on the 1st to 4th pereiopods.  The new genus appears to be relatively basal within the family, and is presumably most closely related to Potamalpheops Powell, 1979 and Stenalpheops Miya, 1997.

Key words: Alpheidae, new genus, symbiosis, Callianassidae, Philippines.

*Correspondence: E-mail:ankera@si.edu