12 Records of the Indian Museum. [Vol. VI, 191 1.] 



P. japonicus, Doflein^ Ahhandl. d. kon. 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. HongV 



P. challengeri , Ortmann, Decap. u. 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. '• Challenger," 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. spinosiis and the other typical representatives of the 

 genus in their more important structural features. 



