1899.] A. Alcook — Carcinological Fauna of India. 99 



( 6) The dacfcyli of the legs are more broadly blade-like, and the 

 last three joints of the legs are without any denticulations or have only 

 a trace of them on the propodite. 



In the Indian Maseum are two specimens one from the Andamans, 

 20 fms,, the other from off the Ganjam coast, 9 fma. 



Subfamily ATELECYCLIN^. 

 Teichopeltarium, a. M. Edw. 

 Trichopeltarium, A. Milne Edwards, Ball. Mus. Comp. Zool. VIII. 1880, p. 19. 



Carapace oval or subcircular, as long as or longer than broad, 

 strongly convex, its borders spinate. 



Front prominent, not very broad, cut into 3 sharp teeth or spines. 



Orbits shallow, defined by spines with considerable gaps between 

 them : inner suborbital angle spiniform. Eye-stalks slender. 



The antennules fold longitudinally. The basal antenna-joint is 

 short and subcylindrical ; the flagellum coarse, stout, setaceous. 



Epistome of fair length, fairly well defined, sunken, and overlapped 

 by the external maxillipeds. Buccal orifice square-cut, longer than 

 broad, not completely covered by the external maxillipeds, which are 

 somewhat elongate and have the merus a little narrower than the 

 ischium. Efferent branchial regions defined by ridges which do nob 

 reach up to the epistome. 



Chelipeds massive and unequal in the male. 



Legs stout, hairy, more or less spiny, ending in stout styliform 

 dactyli : they are longer and are not much less massive than the female 

 chelipeds. 



3. .'' Trichopeltarium ovale, Anderson. 



? Trichopeltarium ovale, Anderson, J.A.S.B. Vol. LX V. pt. 2. 1896, p. 103 ; 111. 

 Zool. Investigator, Crust, pi. xxv. figs. 4-4a : Alcock, Investigator Deep Sea 

 Brachyura, p. 57. 



Carapace egg-shaped, covered with spines which on its dorsal sur- 

 face are bifid or multifid, and with short stiff but not very conspicuous 

 hairs. The regions are well defined by coarse grooves : the gastric is 

 divided into three sub-regions, and the cardiac into two, and on either 

 side of the cardiac region a semilunar area is marked off on the 

 branchial region. 



The front, which is cut into three prongs, is about one-seventh the 

 greatest breadth of the carapace, and is separated from the orbit by a 

 deep notch. 



The orbits are very incomplete : they are formed by a prominent 



