Mr. E. J. Miers on Malaysian Crustacea. 305 



when closed, and minutely toothed. Ambulatory legs and 

 male postabdomen as in T. Larnaudii. Length of largest 

 male 7 lines, breadth 9 lines. 



W. Sumatra, Agam (two males and two females). 



This species differs from T. Larnaudii in the not granu- 

 lated or rugose carapace and chelipedes and the obsolescence 

 of the postfrontal ridge and lateral epibranchial tooth. If it 

 should prove to be merely a young state, it would throw 

 doubt on the distinctness not only of T. Larnaudii, but of 

 several other species of this very difficult genus. T. philip- 

 pina, v. Martens, differs in possessing an epibranchial tooth 

 and in the form of the postabdomen of the male ; T. picta of 

 the same author, in the form of the spines on the inner margin 

 of the wrist and the denticulation of the fingers. 



Telphusa sinuatifrons, M. -Edwards ? 



Carapace very much flattened, much wider at the branchial 

 regions than in its posterior portion, transversely rugose near 

 the antero-lateral margins ; lateral epibranchial tooth distinct 

 but not very prominent, the extraorbital angle or tooth not 

 at all prominent and not projecting beyond the level of the 

 front, which is not at all deflexed, about two fifths the greatest 

 breadth of the carapace, with a very slight median and two 

 lateral sinuses in its anterior margin. The postfrontal ridge 

 is interrupted, the two median portions being more advanced 

 than the lateral, which are continued in a nearly straight line 

 to the epibranchial tooth. Length of carapace 1 inch 3 lines, 

 breadth 1 inch 7 lines. 



W. Borneo (an adult female). 



The anterior legs are unfortunately wanting. Although 

 this species resembles M.-Edwards's figure of T. sinuatifrons 

 in the sinuated anterior margin of its front, a character pecu- 

 liar to that species, the front appears to be relatively broader 

 and the postfrontal line straighter ; so that it may after all 

 prove to be distinct. 



Besides the foregoing there are two specimens (male and 

 female) of a species belonging to that section of the genus 

 which Stimpson designated Gfeotelphusa, which, on account 

 of their mutilated condition, and the difficulty of determining 

 the specific characters of the species of this section without 

 large series for comparison, I will not designate by a distinct 

 name. The carapace is considerably broader than long, and 

 much inflated over the branchial regions ; the postfrontal 

 crest is indicated only by two well-marked prominences on 

 either side of the middle line. The extraorbital angle is 

 much depressed, so that there is no extraorbital tooth ; the 



