PONTONIINE SHRIMPS (DECAPODA, CARIDEA, PALAEMONIDAE) OF THE NORTHWESTATLANTIC .5. PERICLIMENES MCLELLANDI, A NEW SPECIES, A GORGONIAN ASSOCIATE FROM PINE-CAY, TURKS-AND-CAICOS-ISLANDS, BRITISH-WEST-INDIES

Specimens of Periclimenes mclellandi, new species, were collected from gorgonians, primarily Pseudopterogorgia americana Gmelin, at depths o f 14 to 43 m off Pine Gay, Turks and Caicos Islands, British West Indi es. The new species belongs to the ''iridescens'' complex and is simil ar to P. patae Heard & Spotte, 1991, also associated with gorgonians a t Pine Cay and the Florida Keys, but at shallower depths. Periclimenes mclellandi is distinguished from P. patae by a bilobate endite on the second maxillae, two rows of combsetae on the propodus of fifth pereo pods, shorter and deeper rostrum with fewer rostral teeth, and an over all greenish coloration in Life. Both species are distinguished from o ther described members of the ''iridescens'' complex by the chelae of the second pereopods, which are similar and equal or nearly equal in s ize, and by the dactyls of pereopods 3-5, which are simple instead of biunguiculate. Some specimens of P. mclellandi were parasitized by an unidentified aceolid trematode metacercaria and an undescribed bopyrid isopod.