Mr. E. J. Miers on Malaysian Crustacea. 467 



Lironeca lata, Dana, from the Sandwich Islands, seems to 

 be in some degree intermediate between this species and L. 

 emarginata, as in it the head is somewhat more deeply encased 

 in the first segment of the body, but the terminal segment 

 does not project beyond the extremity of the uropoda. 



Lironeca pterygota, Kolbel. 



This species is represented in the collection by a single 

 specimen of very small size (length A\ lines) found among 

 specimens of Nerocila phozopleura. It agrees with Kolbel's 

 description in all respects, except in the somewhat longer 

 antenna?, the superior pair reaching to the posterior margin of 

 the head, and the inferior pair to the middle of the lateral 

 margins of the first thoracic segment. The very unequal 

 development of the coxa? (those of the convex side of the 

 body being much the larger) would seem to distinguish it 

 from L. Boscii, to which, in its distorted form, it bears much 

 external resemblance. 



Nerocila trivittata, Bleeker. 



This species, which, according to Dr. Bleeker, inhabits the 

 seas of Amboina, is represented in the collection by a single 

 specimen (a female, length nearly 9 lines). Dr. Bleeker's 

 description was drawn up from a unique specimen ; but the 

 example before me is probably not the one figured by him, 

 which is of larger size and may have been one obtained sub- 

 sequently. 



Nerocila pliaiopleura, Bleeker. 



A large series of specimens are in the collection, of which 

 the greater number are females with well-developed brood- 

 pouches. Length of a full-sized example 1 inch, of one of 

 the smallest 7 lines. There are several specimens in which 

 no brood-pouch exists ; but in none of these have I observed 

 external male organs. Length of one of the largest 9 lines. 



Nerocila dolichostylis, Kolbel, is a nearly allied form, but 

 distinguished by having the postero-lateral angles of all the 

 segments produced into spines. In N. phaiopleura usually 

 only the first and seventh segments are thus produced. 



Nerocila lo3vinota, sp. n. (PI. XV. figs. 15, 16.) 



Body narrow-oval, about two and a half times as long as 

 its greatest breadth, rather convex. Head with the frontal 

 margin produced, rounded, and concealing the bases of the 

 antennae. Thoracic segments with their tergal portions 

 smooth, and in no case produced at the postero-lateral angles ; 



