234 DE. J. G. DE MAK ON THE PODOfHTHALMOUS 



hairy, the palm of the larger hand and the propodites of the 

 legs of the second and third pairs being almost wholly glabrous, 

 their tubercles and spines being not piliferous. The outer 

 surface of the larger hand and also of its fingers are covered 

 in the Mergui specimen (the hands of the typical specimen are 

 missing) with more numerous, though much smaller granules 

 than in D. merguiensis. As regards the upper surface of 

 the cephalothorax:, both species almost wholly agree with one 

 another, for in D. miles, as in D. mergtiiensis, the part which lies 

 before the cervical suture is also covered with transverse, pili- 

 ferous, elevated lines, of which the anterior ones are minutely 

 spinulose. In the same manner the anterior margin is armed 

 with minute spinules, and similar spinules are found on the 

 lateral margins and at the external angles. The two lateral pro- 

 minences on the anterior margin are, however, a little less promi- 

 nent than in D. merguiensis. The part of the upper surface 

 behind the cervical suture is covered with hairs. 



The acute rostrum extends quite to the middle of the distance 

 between the anterior margin of the cephalothorax and the 

 rounded ends of the eye-peduncles ; it is about twice as long as 

 the inner margin of the ophthalmic scales, and it exceeds by 

 its anterior third the inner margin of the antepenultimate joint 

 of the peduncle of the external antennae. The basal half of the 

 rostrum (between the ophthalmic scales) presents some minute 

 spinules, and the free terminal half is armed on each side with 

 three somewhat larger spinules, whereas the rostrum terminates 

 anteriorly in two spinules. The ophthalmic scales nearly 

 agree with those of D. merguiensis, but they are comparatively 

 much smaller in proportion to the breadth of the cephalothorax. 

 The external antennae are somewhat hairy ; the basal or first 

 joint projects as far forward as the triangular teeth on the 

 anterior margin of the carapace, and it is armed at the external 

 angle of its minutely spinulose anterior margin with a small 

 spine. The second or antepenultimate joint perfectly resembles 

 that of Z>. merguiensis, being armed with a spinule at the outer 

 angle of the anterior margin. The two spines in which the 

 basal scale of the upper surface of the following or penul- 

 timate joint terminates are shorter than in Z>. merguiensis, the 

 external spine scarcely projecting beyond the distal end of the 

 joint, whereas the internal spine only reaches to its middle. 

 The external spine is armed at its inner margin with about five 



