Dr. R. Plante's collection of the families Callianassidae and Gourretiidae (Decapoda, Thalassinidea) from Madagascar, with the description of two new genera and one new species of the Gourretiidae Sakai, 1999 (new status) and two new species of the Callianassidae Dana, 1852

Unstudied callianassids available to Dr. Raphael Plante, collected in 1965-70 around Madagascar from the shallow waters to a depth of 1050 m, have been examined. Most specimens are small and heavily damaged, but they include interesting species of the families Callianassidae and Gourretiidae. Four species of callianassids had earlier been reported from the region around the Mozambique Channel, and in the present study three new species and two new genera of the family Gourretiidae, i.e., Laurentgourretia rhopalommata n. gen. and sp., Gourretia nosybeensis n. sp., and Paragourretia phuketensis (Sakai, 2002), n. gen. and three species of the family Callianassidae, Callianassa chakratongae Sakai, 2002, C. mocambiquensis n. sp., and C. plantei n. sp., are added to the known Madagascan fauna. [ABSTRACT FROM AUTHOR]