THE FISHES OF SAMOA. - 188 



Family SPHYRNIM. 

 SPHYRNA Rafinesque. 



22. Sphyrna zyg-sena (Linnpeus). Mata-i-taliga. Samoa; Hawaii; Fiji; New Guinea; warm seas. 



The common hammerhead is abundant at the reefs of Samoa, as also at Hawaii. Two specimens 

 preserved from Apia. 



Family AXOPIIDjE. 



ALOPIAS Rafinesque. 



23. Alopias vulpes ((iinelin). Hawaii; warm seas. 



Family LAMNIDjE. 

 ISUROPSIS Gill, 



24. Isuropsis g-lauca (Mtiller & Henle). Hawaii; tropical Pacific. 



CARCHARODON Smith. 



25. Carcharodon carcharias (Linna;us). Hawaii; warm seas. 



Family SQUALIM. 



SQUAITTS Linnjeus. 



26. Squalus mitsukurii Jordan & Snyder. Hawaii; Japan. 



ETMOPTERT/S Rafinesque. 



27. Etmopterus villosus Gilbert. Deep waters of Hawaii. 



CENTROSCYLLIUM Mtiller & Henle. 



28. Centroscyllium ruscosum Gilbert. Deep waters of Hawaii. 



ISISTIUS Gill. 



29. Isistius brasiliensis (Quoy & Gaimard). South Pacific, off Fiji; Brazil; Guinea. 



Family RHINOBATIM. 

 RHINOBATUS Bloch & Schneider. 



30. Rhinobatus granulatus Cuvier. New Guinea; Bougainville Is. ; East Indies. 



31. Rhinobatus thouini Miiller & Henle. Hood Bay, New Guinea (Macleay). 



32. Rhinobatus joram Montrouzier. Louisiades. 



Rhinobatus joram Montrouzier, Ann. Soc. Lyons, 1856, 220, Woodlark I. (Louisiadesj. 



Family DASYATID.i. 



DISCOBATIS Macleay & Macleay. 



This genus is near Urolophus, but has no fin on the tail. The skin is smooth, the disk circular, 

 the ventrals entire, and the teeth small. (Not Discobatus Garman 1S80, a Japanese genus.) 



33. Discobatis marginipinnis Macleay & Macleay. Admiralty Is. 



Discobatis marginipinnis Macleay & Macleay, Proc. Linn. Soc. N. S. W. 1885, 676, pi. 46. 



DASYATIS Rafinesque. 



34. Dasyatis sciera Jenkins. Hawaii. 



35. Dasyatis lata Garman. Hawaii. 



36. Dasyatis hawaiiensis Jenkins. Hawaii. 



37. Dasyatis kuhli (Miiller & Henle). New Ireland; East Indies. 



38. Dasyatis trigonoides (Castelnau). New Caledonia. 



Raya (Neotrygon) trigonoides Castelnau, Proc. Zool. Soc. Vict. 1873, 121, New Caledonia; a stint' ray with the spine 

 wanting. 



