Report on the zoological collections made in the Indo-Pacific Ocean ...

CRUSTACEA. 569Mcera truncatipes (Spinola) described by Mr. Spence Bate* ; but iathat species (and also, it would appear, in M. quadrimanns, Daua,from the Fijis, and in M. viridis, Haswell, from the East-Australiancoast) the hands are similar and the segments of the postabdomcusmooth. It is nearlj^ allied to M. rawsai/i, Haswell, referred to inthe earlier part of this lleport, which, however, differs in the formof the hands of the second pair of legs (which have not the deepnotch of 31. diversimanus, and are armed with three nearly equalteeth), and also in the larger posterior pleopoda, &c. ;yet it ispossible that a larger series of specimens would be found to offertransitional characters serving to unite the two forms. I may notehere that there is in the British-Museum collection a specimen fromthe Corean Seas {Capt. IL G. St. Johi) which cannot, I think, bedistinguished specifically from M. truncatipes (Spinola).* Catalogue of Ampbipoda iu British Museum, p. 189, pi. rxxir. fig, 4(1862).