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Milne-Edwards, 1853) and Poppiana argentiniana and described Dilocarcinus pagei cristatus. BOTT (1969) mentioned the occurrence of Sylviocarcinus pictus (H. However, these taxa were later synonymized by MAGALHAES & TtJRKAY (1996a) under Poppiana argentiniana (Rathbun, 1905). PARISI (1923) and PRETZMANN (1968) described, respectively, Trichodactylus (Valdivia) boliviensis and Trichodactylus (Dilocarcinus) bachmayeri, based on material from Bolivia. The first citation was by NOBILI (1898) for Orthostoma septemdentatum (Herbst, 1783) based on specimens from Rio Yacuma, in the Department of. The trichodactylid crabs are relatively better studied. Palaemonid shrimps were treated by HOLTHUIS (1950), who described Palaemonetes ivonicus and later recorded Macrobrachium amazonicum (Heller, 1862) and M. Bolivia, Decapoda, diversity, Amazon Basin, new record The decapod crustacean fauna of Bolivia is poorly known. Milne- Edwards, 1853, Sylviocarcinus maldonadoensis (Pretzmann, 1978), and Valdivia serrata White, KEY WORDS. New records for Bolivia were Macrobrachium depressimanum Pereira, 1993, Macrobrachium brasiliense (Heller, 1862), Acetes paraguayensis Hansen, 1919, Sylviocarcinus devillei H. Ten species of shrimps and crabs, representing three families and six genera were found. Results of a decapod fauna survey conducted during the AquaRAP expedition to Basins, in the Department of, Bolivia, in September, 1996 are presented.
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1 A rapid assessment of the decapod fauna in the Rio Tahuamanu and Rio Manuripi Basins, with new records of shrimps and crabs for Bolivia (Crustacea, Decapoda, Palaemonidae, Sergestidae, Trichodactylidae) Celio Magalhaes 1 ' 2 ABSTRACT.