74 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 



Seven rather young specimens (6 c?, 1 $ ) were collected at 

 Owen Island, the largest of which is 27 millim. broad and 16 

 millim. long. 



It is yery difB.cult to distinguish young specimens of this species 

 from the young of the closely allied Thalamita admete, Herbst, 

 as the principal characters by which they are distinguished 

 from one another appear successively during growth. One of 

 the chief characters is the more pronounced granulation of the 

 carapace and of the chelipedes. The largest specimen already 

 presents many characters proper to Thai. Savignyi, though 

 not all. The upper surface of the cephalothorax is hairy, and 

 the minutely granulated transverse lines are very prominent. 

 The outer surface of the wrist of the anterior legs is armed with 

 three spines (two in T. admete) and with elevated lines, between 

 which it is hairy aud granular. The outer surface of the hands 

 bears two granulated crests, and between the lower crest and the 

 upper margin the surface appears already granular and hairy ; 

 the rounded under margin of the hands is equally granular. 

 The whole inner surface of the hands, on the contrary, and the 

 elevated ridge near the lower margin, which proceeds iilong the 

 immobile finger, are smooth, as in T. admete. 



In the younger individuals this granulation is still less pro- 

 nounced, so that it becomes very difficult to distinguish them 

 from Thai, admete. 



I may finally add that a young female, the cephalothorax of 

 which is only 15| millim. broad, is already provided with eggs. 

 Thai. Savignyi, however, attains a breadth of 40 millim. 



Thalainita Savignyi was first discovered in the Eed Sea, but 

 has since been recorded from Kew Caledonia by Milne-Edwards ; 

 the species has evidently a wide distribution. According to 

 Heller, Thai, admete occurs at the Nicobar Islands. 



50. Thalamita integea, Dana. 



Thalamita Integra, Dana, United States Explor. Expedition, Crustacea, 

 part i. p. 281, pi. xvii. fig. 6 ; Alph. Milne-Edwards, I. c. p. 358. 



One young male was found at Elphinstone Island. This 

 specimen, the carapace of which is only 15| millim. broad and 

 10 millim. long, wholly agrees with the description published by 

 Alph. Milne-Edwards. 



Thalamita integra has been recorded from many islands of the 

 Pacific Ocean by Dana, and from Mozambique by Hilgendorf. 



