422 CALIFORNIA ACADEMY OF SCIENCES. 50 
Family. MUGILIDZE. 
65. Mugil cephalus Linneus. Lisa Macno. 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 xcxocte 
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 Onzscus or 
Cymothoa, the condition being similar to that seen in the 
eastern Menhaden ( Brevoortia tyrannus). 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 by the much greater 
