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



Renocila, gen. nov. 



Allied to Anther a in most of its characters ; but the 8- 

 jointed superior antenna? are greatly developed, reaching 

 nearly to the posterior margin of the first thoracic segment, 

 with all the joints (the terminal excepted) more or less dilated 

 and compressed, so as entirely to conceal the very small 

 inferior antennas ; the dilatation is greatest in the third joint 

 (the second visible in a dorsal view), the following joints 

 becoming successively smaller. The inferior antennae are 

 small and 7-jointed, reaching nearly to the end of the fifth 

 joint of the upper antennas. The eyes are small and indis- 

 tinct, and placed near the postero-lateral angles of the head, 

 which is truncated anteriorly ; the front not produced infe- 

 riorly, so as to conceal the bases of the antennas. The fifth 

 to seventh thoracic segments are greatly prolonged back- 

 ward at their postero-lateral angles, so as (in the sixth and 

 seventh segments) entirely to conceal the " epimeras " or 

 coxal joints ; the postero-lateral lobes of the seventh thoracic 

 segment reach beyond the base of the terminal postabdo- 

 minal segment. The coxal joints of all the legs are poste- 

 riorly acute ; those of the second to fifth legs well deve- 

 loped and visible in a dorsal view. None of the legs have 

 the basis joints dilated ; and all terminate in very strong- 

 curved claws. The uropoda do not reach to the posterior 

 margin of the transverse posteriorly-rounded terminal seg- 

 ment, and are furnished with slender rami, the outer of which 

 is a little longer than the inner. 



This genus, in all its characters, is most nearly allied to 

 Anilocra, from which it is distinguished by its broad non- 

 inflexed front, the greatly produced postero-lateral angles of 

 the three posterior thoracic segments, and the greatly dilated 

 superior antennas. 



Renocila ovata, sp. n. (PI. XV. figs. 11-14.) 



The body is moderately convex, ovate ; the head, which is 

 scarcely broader than long, has the posterior margin rounded, 

 and the sides slightly convergent to the straight anterior 

 margin, which is inflexed, but not produced so as to conceal 

 the bases of the antennas. The first thoracic segment is a 

 little longer than the two following, and its postero-lateral 

 angles are slightly prolonged backward and rounded ; the 

 two following segments are not so produced ; in the fourth 

 segment the postero-lateral lobes are very small, in the fifth 

 to seventh segments they are (as stated above) greatly deve- 

 loped, not acute, but rounded at the distal ends, and with the 



