129 FISHES OF SINALOA. 501 
about the same size. It was also found by Richardson at 
La Paz and by Gilbert at Mazatlan. It has been recorded 
from Cape San Lucas by Xantus and from San Cristobal 
Bay by Townsend. The Pacific form called Labrosomus 
‘xanti seems to be scarcely if at all distinguished from 
the West Indian form, zuchipinnis, cognate to it. The 
only difference we have found is in the dentition of the 
vomer, and this may not be constant. 
218. Labrosomus delalandi (Cuvier & Valenciennes). 
Extremely common in rock pools at Mazatlan, where 
it was also found by Dr. Gilbert. It has not been no- 
ticed from any other locality on the Pacific Coast. 
Thus far we have not been able to distinguish it from La- 
brosomus delalandi of the coast of Brazil. 
219. Enneanectes carminalis (Jordan & Gilbert) n. gen. 
Plate liii. : 
Four specimens, types of the species, were found by 
Dr. Gilbert in a rock pool at Mazatlan. A single small 
example was obtained by us. 
The short chubby body, large rough-ctenoid scales, 
little rounded profile, and short fins distinguish this spe- 
cies sufficiently from 7y7pterygzon Risso, and character- 
ize the new genus Hxneanectes, framed for it by Jordan 
& Evermann. 
220. Auchenopterus monophthalmus Giinther. 
Several specimens taken in rock pools at Mazatlan. 
At low tide it is often left by the regession -of the water, 
in which case it creeps about in the Corallina. 
In this species the first dorsal is higher and better sep- 
arated from the rest of the fin than in the California spe- 
cies, Auchenopterus integripinnis, and there are some 
constant differences in coloration. 
