390 



A. TERAO: 



C. purpurea, Stitnpson, Proc. Acad. Nat. Sci. Philad., 1858, 

 p. 245 ; and Smiths. Misc. Coll., XLIX, 1907, p. 198. 



Note: In the Sci. Coll. Mus. there are of this species: a male from Oshima, Prov. Tcl/u, 

 and several specimens from Bonin Islands, Loo-choos, and from Tansui in Formosa. A 

 male specimen exists also in Mr. M. Nakamura's collection made in the Niigata Prefec- 

 ture but there is ground to assume that the specimen was not captured at that locality, 

 but was brought over from a warmer region. The presence or absence of an oblique 

 file on the outer surface of left chela can not be much relied upon as an important 

 specific character, for I find that in some individuals it is not at all or but so very little 

 developed as to be scarcely distinguishable as such. The outer surface of the propodus 

 and dactytus of the third left leg is sometimes simply rounded; in other cases it shows 

 a longitudinal edge which is generally ill-defined but may sometimes be sharply defined. 

 The coxal elongation of the fifth pair of legs is in no case so elongate as has been figured 

 by authors (f. i., by Alcock, op. cit., pl. xiv, fig. 2a), and that even in those individuals 

 which come close to C. perlatus. Although the material at my disposal does not suffice 

 to form a complete connecting series between C. rugosus and C. perlatus, yet I am 

 greatly inclined to think from a consideration of the above mentioned facts that some 

 day it may become necessary to unite these species into one. 



Family Pylochelidae Spence Bate. 



Pylochelidce, Spence Bate, Challenger Macrura, 1888, p. 11; 

 Ortmann, in Bronn's Thierreich, Malacostraca, p. 1 144 ; Alcock, In- 

 vestigator Mac. and Anom., 1899, p. 209 ; and Cat. Ind. Dec. Crust., 

 pt. 2, fase. I, 1905, p, 13. 



Genus Pomatocheles Miers. 



Pomatocheles, Miers, P. Z. S., 1879, p. 49; Alcock, Cat. Ind. 

 Dec. Crust., pt. 2, fase. 1, 1905, p. 14. 



Poinatocheles jeffreysii Miers. 

 Pomatocheles jeffreysii, Miers, P. Z. S-, 1879, p. 49, pi. iii, fig. 2. 



Note : Three females with eggs from Misaki in the Sci. Coll. Mus. 



Genus Pylocheles Milne-Edwards. 



Pylocheles, Milne-Edwards, Bull. Mus. Comp. Zool. Harvard, 

 VIII, 1880, p. 38 ; Milne-Edwards et Souvier, Mem. Mus. Comp. 

 Zool. Harvard, XIV, no. 3, 1893, p. 17; Stebbing, Hist. Crust., 1893, 



