166 Bulletin American Museum of Natural History. [Vol. XXXV, 



Besides the type we have two larger specimens, one 13 in. long from 

 Tiburon I., April 11 and one 15 in. long from the type locality, April 8, 

 and one smaller specimen 8 in. long from the east side of Esteban I., April 13. 



In the 13 inch specimen the teeth resemble those of the type except for 

 the presence of a small blunt cusp more or less basally situated on each side. 



*?y~: 





'-,-' . _'•... '"•""^H 



Fig. 10. (iirella simplicidens sp. nov. 



The largest specimen has a few such cusped teeth, the greater number being 

 simple like those of the two smaller specimens. Even when the lateral 

 cusps of these teeth are best developed they are still strongly contrasted with 

 those of G. nigricans which are trident with the three cusps nearly equally 

 developed. 



Our specimens are still further distinguished from those of G. nigricans 

 in the collection by the shorter, deeper body. 



Hermosilla azurea Jenkins and Evermann. 



Cerros I., March 11, four specimens, and Port San Bartholome, April 

 23, one specimen, seined. 



Hermosilla robusta sp. nov. 

 Fig. 11. 



Head 3.7; depth 2; eye 5 in head. D. XI, 10; A. Ill, 10; scales 9, 52, 19. 

 Body deep, robust; dorsal and ventral outlines rounded, similar. Snout 3; inter. 



