1900.] A. Alcock — Carcinological Fauna of India. 393 



the sides : its regions well defined : the transverse and oblique ridges 

 are salient, and the surface between the latter is coarsely reticulate. 



Front deep and almost vertically deflexed, overhanging the epistome 

 and much concealing the antennules, its free edge crenate. 



Leugth of the epistome one-third or more of its greatest breadth. 

 The tooth at the inner angle of the orbit is blunt. 



Ohelipeds in the male hardly longer than the carapace, shorter in 

 the female : inner border of ischium and arm strongly spinate, and 

 there are one or two less acute spines at the far end of the outer border 

 of the arm : wrist with fine scattered tubercles on its npper surface, and 

 with its inner angle produced to form a talon-shaped spine : palm nearly 

 as high as long, its outer surface sculptured, its upper border culminat- 

 ing iu a tooth : the fingers have very broad rounded tips, and the 

 length of the dactylus in the male is nearly twice the length of the 

 upper border of the palm. 



Of the legs the 1st pair are very decidedly the shortest and the 

 3rd pair the longest, the latter being about twice the length of the 

 carapace : the 4th pair are longer than the first by a dactylus, 

 and shorter than the 2nd by about two-thirds of a dactylus. Only 

 in the last pair of legs does the breadth of the merus approach 

 half the length of the same joint : the far end of the upper border of 

 the merus is spine-like and there are usually 2 or 3 spines at the far 

 end of the lower border. 



In the Indian Museum are 18 specimens from the Laccadives, the 

 Andamans, the Coromandel coast, and Ceylon. The carapace of a 

 large specimen is 64 raillim. long and 68 millim, broad. 



83. Grapsus strigosus (Herbst). 



Cancer strigosus, Herbsfc, Krabben, III. i. p. 55, pi. xlvii. fig. 7. Grapsus 

 strigosus, Bosc, Hist. Nat. Crust. I. p. 203 : Latreille, Hist. Nat. Crust, et Ins., 

 VI. p. 70, etc. : Milne Edwards, Hist. Nat. Crust. II. 87 : Gay, Hist. Pis. Chili, III. 

 Zool. p. 168 : Dana, U. S. Expl. Exp. Crust, pfc. I. p. 338 : Milue Edwards, Ann. Sci. 

 Nat., Zool., (3) XX. 1853, p. 169 : Stimpson, Journ. Bost. Soc. Nat. Hist. VI. 1857. 

 p. 466: Kinahan, Journ. Roy. Soc. Dubl. I. 1858, p. 310: Stimpson, Proc. Ac. Nat. 

 Sci. Philad. 1858, p. 102: Hess, Archiv f. Nat. XXXI. 1865, i. pp. 147, 171 : Heller, 

 Novara Crust, p. 47 : A. Milne Edwards, Nouv. Archiv. du Mus. IV. 1868, p. 71 and 

 IX. 1873, p. 286 (ubi synon.) : Hilgendorf in v. d. Decken's Reis. Ost-Afr. III. i. 

 p. 87 : Hoffmann, in Pollen & Van Dam, Faun. Madag. Crust, p. 20, pi. v. fig. 31 : 

 Lockiugton, Proc. Calif. Acad. VII. 1876, p. 151 : Kossmann, Reise roth. Meer., 

 Crust, p. 60 : Miers, P. Z. S. 1877, p. 136, and Ann. Mag. Nat. Hist. (5) II. 1878, 

 p. 410 : Hilgendorf, MB. Ak. Berl. 1878, p. 808 : E. Nauck, Zeits. Wiss., Zool. XXXI V. 

 1880, p. 32 (gastric teeth): Kingsley, Proc. Ac. Nat. Sci. Philad. XXXII. 1880, p. 194 : 

 Haswell, Cat. Austral. Crust, p. 97 : Miers, Zool. H. M. S. Alert, pp. 518, 544, and 

 Challenger Brachyura, p. 256: Miiller, Verh. Nat. Ges. Basel, VIII. p 475: de Man, 



