12 Records of the Indian Museum. [Vol. VI, 1911.] 



P. japonicus, Dofieiii, Abhandl. d. koii. hayer. Akad. Wiss., xxi, 



1902, p. 621, pi. iii, fig. 6, and text-fig., p. 622. Japan. 

 P. carinicauda (Stimpson), Proc. Acad. Nat. Sci. Philadelphia, xii, 



i860, p. 25. Hongkong. 

 P. challengeri, Ortmann, Decap. ii. Schizop .- Plankton Exped,, 1893, 



p. 49 = P. gracilis, Spence Bate {nee Smith), Rep. Voy. 



H.M.S. "Challenger," xxiv, Crust. Macr., 1888, p. 487, 



pi. Ixxxvii. Altantic: Tristan da Cunha, Cape Verde Islands; 



Pacific: New Zealand, near Torres Str., near Philippine 



Islands. 

 P. profundus, Spence Bate, Rep. Voy. H.M.S. " Challe?iger ," xxiv. 



Crust. Macr., 1888, p. 490, pi. Ixxxviii, fig. i. Off Sydney. 

 P. junceus, Spence Bate, Rep. Voy. H.M.S. '' Challenger," xxiv, 



Crust. Macr.. 1888, p. 491, pi. Ixxxviii, figs. 2 — 4. Between 



Philippine Islands and Borneo. 

 P. modumanuensis , Rathbun, Bull. U. S. Fish. Comm. for 1903, 



xxiii, pt. iii, 1906, p. 910, text-fig. 63. Hawaiian Islands. 



There is reason to believe that the last four of these species 

 resemble P. spinosus and the other typical representatives of the 

 genus in their more important structural features. 



