CRUSTACEA. 5Q9 



Mcera truncatipcs (Spinola) described by Mr. Spenee Bate* ; but in 

 that species (and also, it would appear, in ]\I. quadrimanus, Dana, 

 from the Fijis, and in M. viridis, Haswcll, from the East-Australia 11 

 coast) the hands are similar and the segments of the postabdomen 

 smooth. It is nearly allied to M. ramsayi, llaswell, referred to in 

 the earlier part of this Report, which, however, differs in the form 

 of the hands of the second pair of legs (which have not the deep 

 notch of M. diver simanus, and are armed with three nearly equal 

 teeth), and also in the larger posterior pleopoda, &c. ; yet it is 

 possible that a larger series of specimens would be found to offer 

 transitional characters serving to unite the two forms. I may note 

 here that there is in the British-Museum collection a specimen from 

 the Corean Seas {Gajpt. 11. C. St. John) which cannot, I think, be 

 distinguished specifically from M. truncatvpes (Spinola). 



* Catalogue of Amphipoda m British Museum, p. ISO, pL xxxiv. fig. 4 

 (1802). 



