BY F. E. GRANT AND ALLAN E. McCULLOCH 31 



compressed tooth directed outwards at the distal end of the same 

 border, and a third, somewhat smaller, directed downwards and 

 forwards at the inner distal angle; flagellum longer than the 

 cornna of the rostrum. A median downward process of the front 

 forms a recurved hook. 



Chelipeds slender, equal, a trifle longer than the carapace. 

 Merus longer than the palm, though less than twice the length of 

 the carpus, armed below with three flattened spines and four 

 above, that at the distal end being very large and obliquely 

 truncated. Carpus with two denticulated crests, the inner with 

 two and the outer with three teeth, the posterior of the latter 

 being enlarged. A third ridge on the inner surface is more 

 pronounced anteriorly and without spines Palm smooth, the 

 upper edge almost straight, carinate posteriorly and terminating 

 in an enlarged tubercle, an indistinct groove on the outer face. 

 Fingers about half as long as the palm, almost closing along their 

 entire edges, and with about five teeth on each. 



Ambulatory legs slender, the first pair the longest; the meri 

 each with a long slender knobbed spine, which is more strongly 

 developed in the first two pairs; indications of similar processes 

 are on the carpus of the two anterior pairs. 



Length to the base of rostral cornua 1 3mm. 



Length of rostral cornua 8mm. 



Haswell states that this species differs from C. longispinis 

 De Haan, in having " none of the supra-orbital spines recurved." 

 This is not correct of the type specimen, which, however, is 

 distinguished from the Japanese species by the much more 

 slender hand. 



Acanthophrys aculeatus A.M.Edw.,* judging from the figure 

 given by that author, is apparently identical with P. spatulifer 

 Haswell. It has, however, been pointed out by Calmanf that 

 the specific name aculeatus is preoccupied, and Haswell's name 

 consequently stands. 



MS65. A. Milne Edwards, Ann. Soc. Ent. France (4) v. p.140, pl.iv. fig.4 

 t Trans. Linn. Soc. Lond. (2) Zool. Vol. viii. p. 38, 1900. 



