30 FISHES OF SINALOA. 403 
Family MURAZENESOCID/4. 
37. Murenesox coniceps Jordan & Gilbert. CULEVRA 
Bianca, ANGUILA BLANCA. 
_ Very common about the islands in the neighborhood of 
Mazatlan. It reaches an enormous size, a specimen ob- 
tained by us being 6 feet and 10 inches long and having 
a girth of 22 inches. 
Family CHANID/E. 
38. Chanos chanos (Forskal). SABavo. 
Very common on the sandy shores of the bay, reaching 
length of about 5 feet. The flesh is poor, and the fish is 
seldom brought into the market, but is frequently used as 
bait. The hard enamelled scales are used for orna- 
mental work by the Indians. We are unable to see any 
difference between our specimens and others brought by 
Dr. Jenkins from the Hawaiian Islands. We have no 
doubt that our species is identical with the common East 
Indian form. 
Peidevs dept Ach Divo nay Ao. os V4 12s scales 
12-70-14; snout 3% in head; eye 3%; maxillary 4¥% ; 
pectoral 13; ventral 14; caudal % longer than head; 
dorsal 1% in head. 
Body elliptical, moderately compressed, the caudal pe- 
duncle slender. Head pointed, rounded above. Eye and 
side of head covered by a large transparent, imperforate 
adipose eyelid. Mouth small, terminal, toothless, trans- 
verse, the lower jaw included; maxillary broad, slipping 
under the adipose preorbital, without supplemental bone. 
Branchiostegals 4. Opercle truncate behind. Pseud- 
branchiz very large. Gill-rakers fine and flexible, very 
close set, rather long, the gill-rakers of all the arches 
bound together so as to form a perfect strainer. Bones 
