The deep-water Calappidae, Matutidae and Leucosiidae of the Solomon Islands, with a description of a new species of Euclosia Galil, 2003 (Crustacea, Decapoda, Brachyura)

Nineteen species of calappid, matutid, and leucosiid crabs were identified from material collected during two MUSORSTOM expeditions conducted in 2001 and 2004 in deep waters off the Solomon Islands. The species are reported for the first time from these islands; for some, these records constitute a significant expansion of their known geographic and bathymetric range. One new species, Euclosia vella n. sp., is described and illustrated; it differs from the closely resembling E. tornatilia (Galil, 2003) and E. unidentata (de Haan, 1841) in its smaller size and absence of the reddish ocelli on the gastric region.