100 DE. J. G. DE MAK OF THE PODOPHTHALMOUS 



Dimensions of the two largest specimens : — 



millim. millim. 

 Lengtli of the cephalothorax (the abdomen 



excluded) 131 12^ 



Distance between the external orbital 



angles 12| 12| 



Distance between the epibranchial teeth. . 15§ 14| 



Breadth of the anterior margin of the front 5| 5^ 



Length of the larger hand 16 9| 



Height of the larger hand (at base of the 



fingers) 8 4^ 



Dr. Anderson kindly compared this species for me with the 

 (single) type specimen of White's Telphusa grapsoides preserved 

 in the British Museum. Telphusa grapsoides has a more square 

 cephalothorax, the length of which is nearly equal to the distance 

 between the epibranchial teeth, and the front is more prolonged 

 forwards. The anterior or internal (median) portion of the post- 

 frontal ridge is very feebly, if at all, marked in White's species, 

 but the posterior or external portion presents the same form and 

 direction in both species. 



The dimensions of the type specimen of White's T. grapsoides 

 are as follows : — 



6. 

 millim. 

 Length of the cephalothorax (abdomen excluded) 16 



Distance between the external orbital angles .... 13^ 



Distance between the epibranchial teeth 16^ 



Breadth of the front 6 



Telphusa grapsoides, which I have never seen, inhabits tlie 

 Philippine Islands. 



Telphusa Icevis, Wood-Mason, from Central India, is also more 

 or less similar to this species, but differs from it in its more 

 enlarged cephalothorax, the different form of the abdomen of the 

 male, &c. 



64. Telphusa caeinipeba, n. sp. (PI. VI. figs, 4 & 5.) 



The Collection contains a third species of the genus Telphusa, 



a single male specimen of which was collected in Elphinstone 



Island Bay. 



Dr. Hilgendorf, who kindly compared it for me with the species 



