2§e 



DE. J. Or. DE MAN ON THE PODOPHTHALMOtJS 



I will now describe the largest of the Mergui specimens. 



The median rostral tooth of the cephalothorax is rather small, 

 triangular, acute, and in all the specimens it projects a little 

 more forwards than the lateral frontal teeth situated just 

 outside of the bases of the eye-peduncles. The latter are 

 slender and (the basal scales included) about as long as the width 

 of the anterior margin of the cephalothorax ; the basal scales are 

 rather small, a little longer than broad, and armed, on their 

 anterior margins, with four acute spinules, the innermost of 

 which is the largest, whereas the others successively decrease 

 in length outwards. The eye-peduncles are longer than the 

 peduncles of the external antennae, but shorter than those of the 

 internal antennae. The antepenultimate joint of the peduncle 

 of each external antenna is armed at the internal angle of its 

 anterior margin with an acute minute spinule ; a similar spiuule 

 is found at the external angle of the anterior margin of the 

 penultimate joint. The spinif orm aciculum which projects from 

 the dorsal surface of the penultimate joint, extends a little less 

 forward than the middle of the terminal joint of the peduncle, 

 and is armed on its inner margin with a row of 6-8 acute 

 spinules and with some yellowish hairs. 



In some of the specimens the right chelij)ede, and more espe- 

 cially the right hand, is a little ismaller than the left ; in most 

 specimens, however, they appear equal at a first sight, but on a 

 more careful examination a slight difference in size is perceptible. 

 In one specimen the difference of size is somewhat more con- 

 siderable, so that the left chelipede of this individual appears at 

 first sight larger than the other. 



In all the specimens the inner margins of the under surfaces 

 of the arms are armed at their proximal ends with a more or less 

 elevated dentiform tubercle, which is not acute, or scarcely so. 

 The wrist is armed above with some acute spiniform teeth, three 

 larger than the others being arranged in a longitudinal row along 

 the inner margin. The hands are covered on their flattened 

 upper surfaces with numerous acute dentiform tubercles 

 particularly crowded on their rounded outer margins and 

 towards the internal margins of the palms, whereas they are less 

 numerous on the middle of the upper surfaces. Five or six some- 

 what larger acute teeth are situated, in a longitudinal row, along 

 the inner margin of the upper surface. The under surfaces of 

 the hands are almost smooth. The upper surface of the mobile 



