422 CALIFORNIA ACADEMY OF SCIENCES. 



Family MUGILIDy^. 



65. Mugil cephalus Linnaeus. Lisa Macho. Lisa 

 Cabezuda. 



Very common in the bay of Mazatlan; a fish of almost 

 universal distribution on both coasts of tropical America, 

 and extending to Europe. We are unable to distinguish 

 the specimens from the two coasts one from another, and 

 find no permanent difference between these and specimens 

 from the Mediterranean. This species is largely used as 

 food, and often enters lagoons and sheltered places. 



66. Mugil curema Cuvier & Valenciennes. Lisa Blanca. 



, Excessively common everywhere, especially in the har- 

 bor and estuary. This species is also valued as a food, 

 but reaches a considerably smaller size than the other. 

 In life the iris is tinged with orange, and there is an orange 

 spot on the side of the head behind the eye. This species, 

 like the preceding, is very widely distributed, being found 

 on both coasts of tropical America. 



67. Mugil hospes Jordan & Culver, n. sp. Lisita. 

 Plate xxxi. 



Rather scarce in the harbor at Mazatlan, where it oc- 

 curs in company with schools of the preceding species; 

 some eight specimens obtained by us. According to Dr. 

 Gilbert, it is quite common at Panama, but the specimens 

 obtained there by him in 1883 were destroyed by fire, so 

 that the species has not thus far received a name. Most 

 specimens of this species have in the mouth or about the 

 branchial cavity a small Crustacean allied to Oniscus or 

 Cymothoo, the condition being similar to that seen in the 

 eastern Menhaden ( Brevoortia tyranniis). This Crusta- 

 cean is found in none of the other species of mullet and 

 its presence is a distinctive character of the present one, 

 which is also readily known at sight b}^ the much greater 



