Catostomus cypho . 
| One had been eaten by a Fish Hawk ] ( Paudion haliaetus 
oliensis ) (Ho. 4900) shot at Indian Garden, Oak Creek, Arizona, 
June 14, 1886. 
Very large ones snared in deep holes among the rocks, in 
Oak Creek, 30 miles above Fort Verde, Arizona. They rarely take a 
hook; but we caught many in Beaver Creek, by allowing a line with 
several hooks attached to sink in a deep hole which they occupied, 
and waiting until the school was over them, when they were hooked 
outside by a sharp swish of the pole arid line.)( They are very good 
eating - much better than other suckers. Ranchers often catch them 
in acequias for food. ) 
Fort Verde, Airzona, July 24, 1885. Catostom us cypho , Lock- 
ington. Male adult, Verde River at Fort Verde, Arizona. Humpbacke d 
Sucker . / Entire ventral surface orange yellow, the pectoral and 
ventral fins very slightly dusky, their upper surface marked basal- 
ly with dusky olive. Iris yellow with greenish yellow granulation. 
Lower third of head, including end of snout, orange yellow in 
strong contrast with the flesh-colored mouth. Sides, salmon-color, 
granulated with dusky olive. Dorsum, dark olive-brown, including 
top of head; the anterior ridge of spine (i.e. hump) pale olive. 
Gills flesh-color; yellow of ventral surface extending to the olive 
of the dorsum, and blending with it on the side of the head poster¬ 
iorly. Dorsal fin olivaceous; anal fin, orange-yellow, indistinct- 
2 
ly marked with dusky 
Total length 490 mm. 
snout to nostril, 44 
caudal, yellowish olive. Peritoreum black . J 
length to base of caudal, 435; from tip of 
to eye, 54; to center of pupil, 60; width 
of orbit, 12; depth of orbit, 9.5; pupil, 4.8; from end of anout 
to preopercle, 85; to opercle, 115; distance between orbita, 42; 
length of caudal, 80; height of dorsal fin anteriorly, 56; poster¬ 
iorly, 29; width at base, 77; at upper edge when outspread, 80; 
emargination, 37 mm. Lateral line of 90 scales. Dorsal, 14; anal, 
7; ventral, 10; pectoral, 15; caudal, 18. Transverse series of 
scales, between dorsal and ventral, 24 rows. 
Fort Verde, Arizona, July 31, 1885. /Mr. Jordan brought me 
a fine living male specimen of the hump-backed sucker (Catostomus 
cypho ). I compared its colors with the description which I gave 
on page 393 (see above), and found that they were identical, ex¬ 
cept that the fins were somewhat rosy and all of the scales on the 
sides silver tipped. / There were 84 scales in the lateral line, 
and 25 in the transverse series - between dorsal and ventral fins. 
The rows of papillae are irregular on both jaws -- about three on 
the upper lip, and ten on the lower. The fins, and parts of skin 
and scales, were mounted on paper and preserved.^The front of the 
skeleton, with the head, were preserved to show the interneural 
bone, which gives the singular dorsal outline (profile) to this 
sucker. ( 
