82 BULLETIN OF THE BUREAU OF FISHERIES. 
in the latter wherever the water is not too strongly impregnated with mineral salts. It has not been 
found in Warner Creek above the falls. 
Description of type no. 55597 U. S. National Museum, from Warner Creek, near Adel, Lake County, 
Oreg.: Total length, 296 mm. Head, 3.8 in length to base of caudal; depth, 4.5; depth of caudal 
peduncle, 3.1 in head; snout, 2.1; eye, 8.3; dorsal, 10; anal, 7; scales in lateral line, 79; between occiput 
and insertion of dorsal, 43; between lateral line and middle of back,19; between lateral line and insertion 
of anal, 14. Eyemidway between tip of snout and edge of opercle. Inner portion of lip with a scarcely 
evident horny sheath, much less conspicuous than that of C. catostomus; upper lip with 3 or 4 rows of 
papillee, the median ones largest; lower lip with 7 or more rows, smaller papillz frequently being wedged 
in between the larger ones; cleft of mandibular lobe not complete, a space covered by 2 or more rows 
of papille intervening. Length of base of dorsal equal to height of fin. Anal rather acutely rounded, 
reaching base of caudal when depressed. Origin of ventrals below base of fourth or fifth dorsal ray; fins 
when depressed falling considerably short of anal opening. Pectorals rounded, their tips reaching two- 
Fic. 2.—Catostomus warnerensis, new species. Type. 
thirds of distance between their bases and the ventrals. Caudal with a shallow notch, the lobes rounded. 
Peritoneum dusky. Color dark above, light below; the dark and light areas separated on a lateral line 
passing just below middle of sides. In life the dusky portion is greenish black, having in places a slight 
brassy sheen; the light ventral parts creamy white. Fins dusky, the lower oneslighter than the others. 
Tn some examples there are 5 or 6 indefinite rows of papillze on the upper lip and 8 or more on the 
lower. Small specimens have the boundaries of the light and dark areas less sharply defined. In 
individuals 60 or 70 mm. long the color of the darker parts is broken up into spots of irregular shape 
and size. 
The appended table of measurements will indicate other slight individual variations. Similar 
measurements of examples of C. tahoensis are also given. 
Represented by specimens from Warner Creek, sloughs south of Warner Creek, and from Honey 
Creek, 
