14 Major A. Alcock and Capt. A. R. S. Anderson on 



Family Pinnoteridae. 

 PiNNOTERES, Latreille. 



I'innoteres abi/ssi'cola, sp. n., $ . 



Carapace as long as broad, circular, smooth ; front rather 

 prominent, about one fifth the greatest breadth of tiie cara- 

 pace. The whole of the eyes and eye-stalks and almost the 

 whole of the orbit are visible in a dorsal view. The eyes 

 are well developed, but very pale. The dactylus of the 

 external maxillipeds is styliform and is inserted at the end of 

 the preceding joint. The lower border of the thumb is fringed 

 with fine hairs. The legs are slender ; the second and third 

 pair are both about 1^ times as long as the carapace, and 

 liave the dactylus slightly longer than it is in the other two 

 pair. 



A single female with eggs and with a carapace about 

 8 niillim. in diameter was taken from a living individual of 

 a large species of lamellibranch of the genus Lima, dredged 

 oflf the coast of Travancore at a depth of 430 fathoms. 



It is interesting to notice that this species is quite like any 

 other Pinnoteres, and has apparently undergone no modifica- 

 tion by exposure to bathybial conditions. 



ANOMURA. 



Family Paguridae. 



Pylocheles, Milne-Edwards. 



Fyloclieles Mieisi, sp. n. 



Tiiis species so closely resembles Pylocheles Agassi'ziij 

 characteiized by M. A. Mihie-Edwards in Bull. Mus. Comp. 

 Zool. vol. viii., 1880, and fully described and figured in 

 Mem. Mus. Comp. Zool. vol. xxxiii., 18J:'3, that from an 

 examination of a single specimen we believed it to be the 

 very same species. 



However, ten specimens, dredged in the Andaman Sea at 

 185 fathoms, and including adults of both sexes, agree in 

 exhibiting certain difFerences fron^ the West-Indian species. 

 These differences are as follows : — 



(1) The grooves of the carapace are without hairs and the 

 arched line that bounds the gastric region anteriorly is very 

 faint. 



(2) The front border of the carapace is simply sinuous, 



