1898. J A. Alcock — Garcinological Fauna of India. 155 



Upper edge of merus of chelipeds and legs crest-like and elegantly 

 serrated, upper edge of the succeeding joints of the legs with a crest 

 of stout sharp spines ; but all this ornamentation is concealed by a 

 broad thick fringe of long coarse hair. 



Abdomen of male with all seven joints distinct, but the 3rd-5th 

 segments are not movable on one another. 



On either side of the endostome is an oblique septum defining the 

 efferent branchial canal, but this septum extends only about half-way 

 across the palate. 



81. Daira perlata, (Herbst) De Haan. 



Cancer perlatus, Herbst, Krabben, I. ii. 265, pi. xxi. fig. 122. 



Cancer daira, Herbst, Krabben, III. ii. 6, pi. liii. fig. 2. 



Cancer variolosus, Fabricius, Ent. Syst. Suppl., p. 338. 



Daira perlata, De Haan, Faun. Japon. Crust, p. 18. 



Lagostoma perlata, Milne Edwards, Hist. Nat. Crust, f. 387. 



Daira variolosa, Dana, U. S. Expl. Exp. Crust, pt. I. p. 202, pi. x. figs. 4a-d. 



Daira perlata, Stimpson, Proc. Ac. Nat. Sci. Phila. 1858, p. 32 : A. Milne 

 Edwards, Nouv. Archiv. du Mus. 1. 1865, p. 29S ; and IX. 1873, p. 196 : Heller, Novara 

 Crust, p. 18 : Miers, Cat. Crust. New Zealand, p. 18 ; and Phil. Trans. Vol. 168, 

 1879, p. 487 : Richters, in Mobius Meeresf, Maurit. p. 147 : Filhol, Crust. New Zea- 

 land, p. 374 : R. I. Pocock, Ann. Mag. Nat. Hist. (6) V. 1890, p. 74 : Ortmann, Zool. 

 Jahrb., Syst., VII. 1893-94, p. 474; and in Semon's Forschungsr. (Jena. Denk. VIII.) 

 Crust, p. 52: Whitelegge, Mem. III. Austral. Mus., 1897, p. 131. 



Carapace oval, strongly convex, subdivided into very numerous 

 polished lentil and pea-shaped lobules which have their surface finely 

 pitted. Antero-lateral borders 11 or 12-crenulate : postero- lateral 

 borders very short, concave. 



Upper and outer surface of wrist lobulated almost like the cara- 

 pace ; of hand and dactylus covered with coarse sharp tubercles, which 

 become almost spiniform on the upper edge : upper part of inner surface 

 of wrist and hand covered with a mosaic of flat markings that look like 

 ground-down tubercles : much the same sort of mosaic occurs on the 

 outer surface of the arm and legs, but on the dactyli and propodites of 

 the legs the tubercles are either spiny or acute, and at the distal end of 

 the carpus there is a spine. 



Fingers short and thick, with blunt hollowed-out tips, those of the 

 larger cheliped have the cutting-edge toothed, those of the smaller 

 cheliped have a plain sharp cutting-edge. 



Lower edge and surface of meropodites of legs much excavated in 

 their distal half to receive the bulging distal end of the carpus in 

 flexion. 



Upper edge of legs fringed thickly with coarse long hair which 



