Carcinoloyical Fauna of India. 355 



which is tlie more prominent, is oblique and runs to the lower border of 

 the same finger. In the adult male the fingers of the large hand are 

 about twice the length of the U])per border of the palm : the}- are not 

 very broad, and owing to the hook-like curve of the dactylus there is a 

 wide space between them when ihe tips are ap|)osed : the immobile 

 finger is but slightly curved, and is generally shorter than tlie dactylus, 

 and owing to the presence of an enlarged tooth near the tip, tlie tip has 

 a characteristic notched-truncate appearance. 



The meropodite in the last pair of legs is not at all foliaceous. 



The carapace in the adult male is about 11 niillim. long and 19 

 millim. bi-oad. 



In the Indian Museum are 300 specimens from all parts of the 

 coast from Karachi on the west to Mergui on the east. 



This species is not, as Miers queries, the same as Slimpson's 

 G. splendidiis, of which we have numerous specimens from Hongkong. 



49. Gelasivms lacteus (De Haan). 



Ocypode (Gelasimus) lactea, De Haan, Faun. Japon., Crast,, p. 54, pi. xv. fig. 5, 

 Gelasimus lacteus, Milne Edwards, Ann. Sci. Nat., Zool., (3) XVIIl. 1852, pi. W. 

 fig. 16: Stimpson, Proc. Ac. Nafc. Sci. Plulad. 1858, p. 100: Miers, P. Z. S. 1879, 

 pp. 20, 36: Kingsley, Proc. Ac. Nafc Sci. Philad. 1880, p. 149, pi, x. fig. 28: Cano, 

 Boll. See. Nat. Napol. Itl. 1889, p. 2-34 : de Man , Notes Le.yden Mus. XIII. 1891 , 

 p. 22: Orfcmann, Zool. Jalirb., Syst , Yll. 1893-94, pp. 7o2, 759. 



Uca lactea, Ortmaun, Zool. Jahrb., Syst., X. 1897-98, pp. 351, 355. 



Easily distinguished from G. anuulipes, whicli is its nearest relative, 

 by the following characters : — 



(1) the carapace is much more nearly quadrangular, the po.^^terior 

 border of its dorsum being between three-fifths and two-thirds of its 

 greatest breadth, and its tiue lateral borders being parallel, while the 

 lateral holders of its dorsum are nearly so : 



(2) in the larger cheliped of the male the outer end of the upper 

 border of the arm, and the inner border of the wrist, are distinctly 

 denticulated ; the dactylus is not so strongly hooked, and the end of the 

 immobile finger though obliquely truncate has an acuminate tip — never 

 a notched-truncate tip : 



(3) the colour, in spirit specimens, has a sort of livid bloom never 

 seen in G. annulipes. 



In the Indian Museum are 47 specimens from Karachi and 3 from 

 the Andamans. 



{^Gelasimus inversus, Hoffmann. 



Gelaniinus inveitus, HoEfniiuin, in Pollen and van Dam, Fauii. MadagJisc. Crust, 

 p. 19, pi. iv. figs. 23-26 (1874) : Kiugslcv, I'roc. Ac. Nat. Sci. Philad. 1880, p. 155 



697 



