93i CEUSTACEA. 



process of its posterior border is more acute; mesially it is devoid of liairs, but 

 laterally it is extremely hirsute. The anterior pleural lobe is distinct, but the inter- 

 j)leural portion of the line that marks it off from the rest of the carapace is not 

 tuberculated as in T. edwardsi ; neither is the inflected portion of the carapace so 

 distinctly rugose nor so thickly covered with hairs. Of the chelipedes the right 

 exceeds the left in size in the only adult specimen in my possession ; the outer, or 

 more strictly speaking the posterior face of the meropodites is smooth, devoid of 

 hairs, except towards the dorsal edge, which is densely covered with bundles of hairs 

 and but slightly rugose. The carpopodite is armed in the usual way with a spine, 

 beneath which is a short bilobed spinule ; its upper surface roughly punctate ; an 

 impression is to be observed at its distal articular end, which is not more than 

 ordinarily thickened. The propodite is coarsely punctate, its lower border is longi- 

 tudinally concave, its prolongation is externally grooved, and so is the dactylopodite 

 with which it is in contact throughout its whole length. The ambulatory legs are 

 robust; the ridges of all their joints are thickly covered with bundles of hairs; the 

 penultimate joints are similar to those of Telphusa andersoniana. 



Length 31 mm. 



Breadth 4-3 „ 



Sab. — Ponsee, Kakhyen Hills. 



Telphtisa ttjmida, J. W.-Mason. 



Telphusa tumUa, J. Wood-Mason, Jom-n. As. Soc, Bengal, vol. xl, pt. ii, 1871, p. 453, pi. xxvii. 



Carapace slightly broader than long, tumid, punctate, extremely convex in 

 every direction, with an areolation similar to that of the three last described species, 

 but the meso-gastric lobe is almost confluent anteriorly with the proto-gastric, and 

 this latter is marked by a short branch running off from the cervical suture at right 

 angles to it ; the cardiac is separated from the posterior half of the branchial area ; 

 the epi-gastric lobes are prominent, anteriorly wrinkled, and extend beyond the line 

 of the rest of post-frontal ridge; anterior branchial lobe and post-frontal crest 

 rugose ; the latter is slightly indented by the cervical sutm-e, and continuous from 

 the epi-gastric lobes to the minute epibrancMal teeth ; antero-lateral margins greatly 

 inclined with minutely denticulated crests; postero-lateral margin marked with 

 oblique wrmkles which assume a tubercular character as they pass forwards on to 

 the inflected portion of the carapace, and the posterior pleural lobes wliich, where 

 they form the peristoma, are completely covered with round, polished tubercles, 

 disposed in pairs ; the anterior pleural lobe presents a few scattered tubercles, and 

 is cut off from the posterior pleural and from the inflected region of the carapace 

 by a beaded line. Front broad, deflexed, coarsely granulated, marked by the pro- 

 longation forwards of the meso-gastric furrow. The epistoma presents the same 

 characters as that of Telphtisa andersoniana, except that its anterior margin is 

 distinctly crenulated. The orbits and their external angles are crenated. 



