316 A. Alcock — Carcinological Fauna of India. [-No. 3, 



In the Indian Museum are 4 specimens, from the Andamans and 

 from off Ceylon 34 fms. The carapace of the type specimen is 5 millim. 

 long and 7 millim. broad. 



Colour in spirit, uniform yellow. 



18. Litochira quadrispinosa, Zehntner. 



Litochira quadrispinosa, Zehntner, Rev. Suisse de Zool.'ll. 1894, p. 171, pi. viii. 

 figs. 11, lib. 



Differs from L. Beaumontii in the following particulars only: — 



(1) the carapace is still more nearly square : 



(2) there are 2 spines on the antero-lateral borders but none at the 

 outer orbital angles : 



(3) the inner border of the ischium and arm of the chelipeds is 

 serrated, and the meropodites of the legs are armed with spines. 



(4) the colouration is yellow, with a large purplish -brown horse- 

 shoe behind the front, and with sinuous markings of the same colour on 

 the lateral sub frontal and suborbital regions of the carapace : the 

 greater part of the antennal flagella is of the same purplish-brown 

 colour. 



In the Indian Museum is a single specimen from the Andamans : 

 the carapace is 4 millim. long and 5 millim. broad. 



Subfamily ii. Gonoplacine. 

 19. Gonoplax, Leach. 



Gonoplax, Leach, Trans. Linn. Soc. XI. 1815, pp. 309, 323, and Malac. Pod. 

 Brit. : Desniarest, Consid. Gen. Crust, p. 124, and Diet, Sci. Nat. XXVIII. p. 243 : 

 De Haan, Faun. Japon. Crnsfc., p. 19: Milne Edwards, Hist. Nat. Crust. II. 60, and 

 Ann. Sci. Nat. Zool. (3) XV11I. 1852, p. 162 : Dana, U. S. Expl. Exp. Crost. pt. I. 

 p. 310: Bell, Brit. Stalk-eyed Crust, p. 129: Heller, Crust. Sudl. Europ. p. 102 : 

 Miers, Challenger Brachyura, p. 245. 



Rhombilia, Lamarck (part), Hist. Nat. Anim. sans Vert. (2) V. p. 466 : Latreille, 

 Encyc. Method. X. p. 292. 



Carapace subquadrilateral, with the antero-lateral angles acute and 

 the lateral borders posteriorly convergent, a good deal broader than 

 long, moderately convex, the regions but faintly indicated. 



The front and orbits occupy the whole anterior border of the 

 carapace : the front is square cut, laminar, and obliquely deflexed, and 

 takes up between a third and a fourth of the anterior border of the 

 carapace, the rest being taken up by the trench-like orbits. 



Eyestalks long and slender : the antennules fold quite transversely 

 beneath the front : the antennae have a short basal joint and a slender 

 flagellum of good length, standing in the orbital hiatus. 





