1896.] A. Alcock — Carcinological Fauna of India. 233 



In size similar to L. craniolaris. 



Two adult males, an adult female, and a young female from the 

 Andamans are in the Indian Museum collection. 



In the young one the posterior margin of the carapace is perfectly 

 straight, with the outer angles dentiform. 



63. Leucosia pubescens, Miers. 



Leucosia pubescens, Miers, Trans. Linn. Soc, ZooL, (2) I. 1875-79 (1877), p. 238, 

 pi. xxsviii. figs. 22-24 : Haswell, P. L. S., N. S. Wales, Vol. IV. 1879, p. 46, and 

 Cat. Austral. Crust, p. 119: de Man, Archiv. fur Naturges. LIIT. i. 1887, p. 390. 



? Pseudophilyra hoedtii, de Man, Notes Leyden Mus. III. 1881, p. 125. 



Pseudophilyra hoedtii, de Man, Journ. Linn. Soc. Zool. Vol. XXII. 1888, p. 198. 



Differs from L. craniolaris Herbst, only in the following particu- 

 lars : — 



1. The front is as long as broad, and its sides meet the antero- 

 lateral borders of the carapace at an angle. 



2. The innexed surface below the posterior margin of the dorsum 

 of tbe carapace is quite smooth. 



3. The thoracic sinus, when denuded of its hair, is a shallow 

 cavity, and the edge of the pterygostomian region which, bounds the 

 sinus anteriorly is thickened, smooth, and little convex. 



4. The inner edge of the hand is almost devoid of granules. 



5. The meropodites of the first three pairs of legs are rounded, 

 not sharply squared, and usually have only a single longitudinal row — 

 ventral in position— of minute granules : those of the last pair, though 

 compressed, are not carinate, except that ventrally, about the middle, 

 they bear a serrated lobule. 



6. The carpopodites of the legs are inflated and non-carinate, and 

 the propodites are but slightly carinate. 



7. In fresh spirit specimens the carapace is light slate blue, 

 traversed longitudinally by four broken longitudinal stripes of greenish 

 brown which are so far continuous as to form a treble loop something 

 like an incomplete pair of spectacles or a rather fantastic U : the 

 chelipeds and legs with bands of yellowish brown, and the base of the 

 fingers yellowish brown. In old spirit specimens the markings are not 

 found on the carapace. 



The carapace of an adult male is 18 millim. long and 15 millim. 

 broad, that of an adult female is 185 millim. by 15 millim. 



In the Indian Museum collection are 3 adult males and 2 adult 

 females from the Madras Coast, two adult females and a young male 

 from the Persian Gulf, an adult and a half-grown male froru the 

 J. II. 30 



