249 



P. gracilis Burger, 1. c, p. 368, pi. 9, f. 6, pi. 10, f. 6; Rathbun, 1. c, p. 330. Hab. Philippines 



and Gulf of Siam. In Solen. 

 P. holothuriae Semper, Burger, 1. c, p. 381, pi. 9, f. 27, pi. 10, f. 26 and 36. Hab. Philippines. 



In cloaca of a Holothurian {Stichopus variegatiis). 

 P. impresses Burger, 1. c, p. 380, pi. 9, f. 24, pi. 10, f. 23. Hab. Philippines. 

 P. kamensis Rathbun, I.e., p. 335, te.xtfig. 18. Hab. Gulf of Siam. 

 P. kutensis Rathbun, I.e., p. 335, te.xtfig. 19. Hab. Gulf of Siam. 



P. laevis Burger, I.e., p. 380, pi. 9, f. 25, pi. 10, f. 24. Hab. Palaos Islands. In Coralliophaga. 

 P. lanensis Rathbun, I.e., p. 332, textfig. 14. Hab. Gulf of Siam. 

 P. latissimus Burger, I.e., p. 373, pi. 9, f. 13, pi. 10, f. 13. Hab. Manila. 

 P. latus Burger, I.e., p. 374, pi. 9, f. 16, pi. 10, f. 15. See also the present paper, p. 259. 



Hab. Philippines. In Pinna. 

 P. longipes Burger, I.e., p. 379, pi. 9, f. 31, pi. 10, f. 22. Hab. Philippines. 

 P. lutescens Nobili, Bull. Mus. Paris, t. 11, 1905^ p. 409; Ann. Sc. Nat. (9), t. 4, 1906, p. 304. 



Hab. Red. Sea. 

 P. inaciricohis Alcock, I.e., p. 339; 111. Zool. "Investigator", Crust., prt 10, 1903, pi. 62, 



f. 4 — 5. Hab. British India. In Macfra violacea. 

 P. maindroni Nobili, Bull. Mus. Paris, t. 11, 1905, p. 410; Ann. Sc. Nat. (9), t. 4, 1906, 



p. 306, pi. 8, f. 8, textfig. II. Hab. Red. Sea. 

 P. major (Pinnaxodes major) (Ortmann), Zool. Jahrb., Syst., Bd 7, 1894, p. 697, pi. 23, 



f. 10. Hab. Japan. 

 P. margaritiferae Laurie, Rep. Pearl Oyster Fish. Ceylon, prt 5, 1906, p. 424, textfig. 10 ; 

 Southwell, Ceylon Mar. Biol. Rep., v. i, prt 5, p. 227. Hab. Gulf of Manaar (Ceylon). 

 P. modiolicolus Burger, I.e., p. 370, pi. 9, f. 9, pi. 10, f. 9. Hab. Philippines. In Modiola 



p kilippinarum. 

 P. nigrans Rathbun, I.e., p. 334, textfigs. 16 and 17. Hab. Gulf of Siam. 

 P. novae-zealandiae Filhol, Miss, ile Campbell, t. 3, prt 2, 1886, p. 407; Lenz, Zool. Jahrb., 



Syst., Bd. 14, 1901, p. 467, pi. 32, f. II — 14. Hab. New Zealand. 

 P. midifrons Burger, I.e., p. 378, pi. 9, f. 22, pi. 10, f. 20. Hab. Philippines. 

 P. obcstis Dana, Proc. Ac. Nat. Sc. Philadelphia, 1851, p. 253; Dana, U. S. Expl. Exp., Crust., 

 1852, p. 380, pi. 24, f. 3; MiERS, Ann. Mag. Nat. Hist. (5), v. 5, 1S80, p. 314, 

 pi. 14, f. 4; P. siamejisis Rathbun, I.e., p. 336, textfig. 20. See also the present 

 paper p. 257. Hab. Fiji Islands, Borneo and Gulf of Siam. 

 P. obscurus Stimpson, Proc. Ac. Nat. Sc. Philadelphia, 1858, p. 108; Smithson. Inst., Miscell. 



Coll., V. 49, 1907, p. 141. Hab. Hongkong. 

 P. onychodactylns n. sp. See the present paper, p. 259. Hab. Moluccas. 

 P. ortmanni Burger, I.e., p. 384, pi. 9, f. 30, pi. 10, f. 28. Hab. Philippines. 

 P. palaensis Burger, I.e., p. 372, pi. 9, f. 12, pi. 10, f. 12. Hab. Palaos Islands. In Area 



scapha, P lacuna sella and Byssoarca. 

 P. parvulus Stimpson (nee de Man etc.), Proc. Ac. Nat. Sc. Philadelphia, 1858, p. 108; 

 Ortmann, Zool. Jahrb., Syst., Bd 7, 1894, p. 699, pi. 23, f. 12; Stimpson, Smithson. 



