354 A. Alcock — Carcinological Fauna of India. [Ko. £, 



Meer., Crust., p. 53: Miers, Phil; Trans. Roy. Soc. Vol. 168, 1879, p. 488, and Ann. 

 Mag. Nat. Hist. (5) V. 1880, p. 310, and Zool. H< M. S. Alert, pp. 518, 541, and 

 Challenger Brachynra, p. 244: Richters, in Motrins Meeresf. Maurit., p. 155: 

 Kingsley, Proc. Ac. Nat. Sci. Philad. 1880, p. 148, pi. x. fig. 22: de Man, Notes 

 Leyden Mus. II. 1880, p. 69, and Journ. Linn. Soc., Zool., XXII. 1887-88, p. 118 

 pi. viii. fig. 5-7, and Archiv f. Naturges. L1II. 1887, i. p. 353, and Notes Leyden 

 Mus. XIII. 1891, pp. 23, 39, and in Weber's Zool. Ergebn. Niederl. Ost-Ind. II. 1892, 

 p. 307, and Zool. Zahrb., Syst., VIII. 1894-95, p. 577 : Lenz & Richters, Abh. Senck. 

 Nat. Ges. Frankf., XII. 1881, p. 423: F. Muller, Verb. Ges. Basel. VIII. 1886, 

 p. 475 : J. R. Henderson, Trans. Linn. Soc, Zool., (2) V. 1893, p. 388 : Ortmanu, 

 Zool. Jahrb. Syst. VII. 1893-9i, pp. 752, 758, and Jena. Denk. VIII. 1894, p. 57 : 

 Zehntner, Rev. Suisse de Zool. II. 1894, p. 178. 



Oelasimus C 'ar ionis, Edw. {nee Desm.), Hist. Nat. Crust. II. 53. 



Gelasimus-porcellanus, White, P. Z. S. 1847, p. 85, and in Adams and White, 

 Samarang Crust., p 50: Milne Edwards, Ann. Sci. Nat., Zool., (3) XVIII. 1852, 

 p. 151 : Kingsley, Proc. Ac. Nat. Sci. Philad. 1880, p. 155. 



Gelasimus perplexus, Milne Edwards, Ann. Sci Nat., Zool., (3) XVIII. 1852, 

 p. 150, pi. iv. fig. 18: A. Milne Edwards, Nouv. Archiv. du Mus. IX. 1873, p. 274. 



? Oelasimus pulchellus, Stimpson, Proc. Ac. Nat. Sci. Philad. 1858, pp. 99, 100. 



-Uca annulipes, Ortniann, Zool. Jahrb. Syst. X. 1897-98, pp. 351 and 354: Nobili, 

 Ann, Mus. Genov. (2) XX. 1899, p. 274 : Doflein, SB. Ak. Munch. XXIX. 1899, p. 193. 



Length of the carapace about three-fifths of the greatest breadth 

 at the acute claw-like antero-lateral angles. The posterior border of 

 the dorsum of the carapace— i.e., the border corresponding with the last 

 segment of the sternum — is a good deal over half the greatest breadth of 

 the carapace, so that the lateral borders of the dorsum of the carapace, 

 which are distinctly denned in almost two-thirds of their extent by a 

 fine raised line, are only moderately convergent. The post-gastric and 

 cardiac regions are the only ones that are defined, and they but faintly. 



Front, measured between the bases of the eyestalks, from a fifth to 

 a sixth the greatest breadth of the carapace. 



Orbits sinuous and considerably oblique ; their upper border defined 

 by a fine raised line which is very distinctly double in a good part of its 

 extent ; their lower border very elegantly and regularly serrated — the 

 teeth increasing in size from within outwards. In the female only there 

 is a short row of granules inside of and parallel with the lower border 

 of the orbit. 



In the large cheliped of the adult male the greatest length of the 

 hand (including fingers) is at least three times the length of the carapace : 

 the outer surface of the somewhat rounded arm and of the wrist and 

 hand is smooth to the naked eye, with a few small granules on the inner 

 border of the wrist: the lower border of the palm is obscurely margin- 

 ate : and on the inner surface of the palm are two salient granular 

 crests, one of these is deeply grooved and nearly vertical and becomes 

 continuous with the dentaxy edge of the immobile finger, the other, 



