1896.] A. Alcock — Carcinologicnl Fauna of India. 245 



Besides these there are 4 specimens (two males more than half-grown, a 

 younger male, and one very young specimen) from Mergai. These have been com- 

 pared by Dr. de Man with Fabricius' types of P. giohosa from the Kiel Museum, and 

 are stated by him to agree wich Fabricius' female type. 



They do not however, as Dr. de Man appears to suspect, agree with Fabricius' 

 male type, and this involves a delicate question of synonymy. 



From Dr. de Man's description it is evident that Fabricius' male is a species 

 quite distinct from his female : as a matter of fact it appears to be the species 

 named by Milne Edwards— and named probably with foresight— P. glohulosa. 



It seems therefore preferable to apply Milne Edwards name, P. glohulosa, to 

 Fabricius' male type, and to leave the name P. giohosa in possession of Fabricias' 

 female t,vpe. 



The only other alternative is to make use of Dr. Henderson's name P. polita for 

 Fabricius' female, and to let P. giohosa stand for Fabricius' male. But this, I think, 

 would be a little unjust to Dr. de Man, upon whose prior work the present attempt 

 to clear up the confusion between the two species is based, and a little wanting in 

 respect to the memory of the founder of modern carcinology. 



73. Philyra glohulosa, Edw. 



?? Cancer anatum, Herbst, Krabben, I. ii. 93, pi. ii. fig. 19. 



Philyra glohulosa, Milne Edwards, Cuvier Eegne An. Crust, pi. xxiv. fig. 4, 

 and Hist. Nat. Crust. II. 132 (nee syn.) : Bell, Trans. Linn. Soc. Vol. XXL 

 1855, p. 300, and Cat. Leucos. Brit. Mus. p. 14 {nee syn.) 



? Philyra giohosa, Leach, Zool. Miscell. III. p. 22 (female only) : ? Desmarest, 

 Consid. Crust, p. 168 (part). 



Philyra giohosa, de Man, Journ. Linn. Soc, Zool., Yol. XXII. 1888, p. 203: 

 only that part relating to Fabricius' male type, and not the part relating to Fabricius' 

 female type and to the Mergui specimens. 



? Philyta heterograna, Ortmann, Zool. Jahrbuch. Syst. etc. VI. 1892, p. 582, 

 pi. xxvi. fig. 17, (half-grown male). 



The whole exoskeleton (when not incrnsted with Hydrozoa &c., 

 as it rarely is) has the somewhat greasy look and feel of unglazed 

 porcelain, except the legs and abdomen, which are polished. 



The carapace is circular, its dorsum is defined all round, behind the 

 hairy front, by a line of granules, some of which, at fairly regular in- 

 tervals, are much enlarged and may even, in young specimens, form 

 distinct denticles. 



The epistome can be scarcely said to project beyond the front, 

 since only the inner angles of the afferent branchial canals do so. 



The edge of the front is emarginate in the middle line, so as to 

 make the front, when denuded of hair, broadly bilobed. 



An indentation of the margin of the carapace separates the hepatic 

 from the branchial regions, and a broad groove separates the branchial 

 regions from the cardiac and intestinal regions, on either side. 



A band of granules visible to the naked eye is always found 



