JO FAMILIES AND GENERA. 



Torpedinidse. (BATOIDEI.) Plate xxxiii. 

 Torpedo, 248, 249. 



Traehinidae. (ACANTHOPTERYGII.) Plate vii. 

 Trachimis, 45, 46. 



i 



Traehypteridse. (ACANTHOPTERYGII.) Plate xiii. 



Regakcus, ventrals a pair of long filaments, no caudal, 103. 

 Trachypterus, ventrals well developed; caudal placed at an 

 angle, 102. 



Triehiuridse. (ACANTHOPTERYGII.) Plate iii. 

 Trichiunis, caudal absent, 22. 

 Lcpidopus, caudal well developed, 23. 



Trygonidse. (BATOIDEI.) Plate xxxiii. 

 Trygon, 252. 



(ACANTHOPTERYGII.) Plate iii. 

 Xiphias, 21. 



