"438 CALIFORNIA ACADEMY OF SCIENCES. 66 
the fishermen. On the Atlantic coast, the very closely 
related Pampano, 7vachinotus carolinus, is one of the most 
valued food fishes. We are unable to see any difference 
of any importance between the present species and the 
Pampano of the gulf other than the fact that in the Sina- 
loan form the head seems to be larger and longer. On 
this difference we have ventured to give a new specific 
name to our specimens from Mazatlan. We shall not, 
however, be surprised if the species proves inseparable 
from Tyrachinotus carolinus. 
Allied to TZyrachinotus carolinus, but with the head 
larger. 
Head’ 3;..depth 2%; D/ VIE 247 A 11 10235 eye 
3% in head; snout 3%; maxillary 2% ; dorsal lobe 1% ; 
caudal 17;: 
Body rather elongate, the back moderately and regu- 
larly arched; snout bluntish. Mouth large, horizontal, 
the lower jaw included, maxillary reaching past pupil. 
Lateral line little arched, its curve 1% in straight part. 
Teeth well developed. Caudal not widely forked. 
Silvery without spot or band; anal creamy orange, its 
tip whitish. Other fins pale, except dorsal lobe which is 
dusky. Axil silvery. 
A few specimens taken in the surf, the largest 2% 
inches ‘long. Type. No... 2690 L. S. Jr... Univ. fie: 
Other specimens taken by the Albatross in San Juan La- 
goon examined; some of these are five inches in length. 
96. Trachinotus rhodopus Gill. ( 7rachynotus fasciatus 
Gill; Zrachynotus nasutus Gill.) 
Very common on sandy shores about Mazatlan, reach- 
ing the length of about a foot; not much valued as food. 
Readily distinguished at all ages by the reddish color of 
the lobes of the dorsal, anal and caudal. These lobes 
become considerably elevated with age, but at all times 
