[9] CATALOGUE OF THE FISHES OF NORTH AMERICA. 



$ Sphyma. 



46. Sphyma tudes ' Cuvier. W. P. Eu. 



47. Sphyma zygaena Linnspus. N. S. W. C. P. (32) 



Family XII.— ALOPIID^. (9) 



24.— AIjOPIAS Rafinesque. (24) 



48. Alopias vulpes Graelin. C. N. Eu. (33) 



Family XIII.— ODONTASPIDID^. (10). 



25.— CARCHARIAS - Rafinesque. (25) 

 ^ Eugomphodua Gill. 



49. Carcharias littoralis Mitchill. N. (34) 



Family XIV.— LAMXID^. (11) 



26.— ISURUS Rafinesque. (26) 

 § Isuropsia GUI. 



50. Isums dekayi Gill. W. S. (35 ; 36) 



27.— LAMNA Cuvier. (27) 



51. Lamna comubica Gmelin. C. Eu. N. (37) 



28.— CARCHARODON Smith. (28) 



52. Carcharodon carcharias^ Linmcus. C. N. Eu. O. (38) 



Family XV.— CETOEHINID^. (12) 



29.— CETORHINUS Blainville. (29) 



53. Cetorhinus maximus Gunner. C. N. Eu. O. (39) 



^Sphyrna tudes Cuvier. Intermediate in all respects between S. zygtena and S, 

 tiburo, the hammer longer and less produced laterally than in the former. Anterior 

 margin of the head much curved, but not continuous with the lateral edge; length of 

 hinder margin of one side of the hammer less than its width near the eye. Nostril 

 close to the eye, its groove longer than in S. tiburo, but very short, continued for but 

 a short distance along the side of the head, and followed by a line of pores. 



A large shark, of the warm seas, Gulf of California, West Indies, Mediterranean, 

 and Indian Ocean. 



(Zygcena tudes Cuvier (R^gne Animal) ; Sphyma tudes Miiller & Henle, Plagiost., 53; 

 Zygwna tudes Giinther, VIII, 382 ; Sphyma tudes Jordan «fc Gilbert, Bull. U. S. Fish 

 Comm., 1882, 105.) 



-Carcharias Rafinesque was established for those sharks, "the most enormous and 

 most voracious of their order, which differ from the genus Galeus Rafinesque, by 

 the lack of spiracles." But one species {Carcharias iaurus Rafinesque) is menticfued, 

 and this species, although really possessing spiracles, must be regarded as the type of 

 Carcharias. This name should therefore supersede Odontaspis. 



3 A good account of this species is given by Dr. W. B. Stevenson, Proc. Vassal 

 Brothers Sci. Soc, Poughkeepsie, 1884, and in American Naturalist for the same, 

 year. 



