Jordati and Evermann. — Fishes of North America. 177 



. ^ • 



Catoslomiis uanomiir.on,* Mather, Twelfth Kept. N. Y. Fisli Com., Survey Adirondack Begion, 

 1884, 3t;, Big IVIoose Lake, northern New York. (Type, No. 33917.) 



283. CATOSTOMUS TAHOEXSIS, Gill & Jordan. 

 (Tahoe Sucker.) 

 Rather stouter than C. catostomus, the depth 4^ to 5 in length. Head 

 very large and long acuminate, the muzzle nearly i its length, overhang- 

 ing the rather large mouth. Lips moderate, the upper pendant, with 

 about 3 rows of small papillae; the lower rather full, similarly papillose. 

 Eye nearly median, rather small, 8i in head. Scales small and crowded 

 forward, closely imbricated, 85 to 90 in the course of the lateral line, 

 and about 28 in a cross series from dorsal to ventrals. Dorsal short, but 

 longer than high, its rays 10. Coloration very dark; fins dusky; scales 

 everywhere linely punctate. Breeding males profusely tuberculate. Size 

 large. Lake Tahoe, very abundant. We have specimens also from Hum- 

 boldt River, at Winuemucca, Nevada. 



CaCosto7nus lahoensis, Jordan, /. c.,l'!3, 1878, Lake Tahoe, California (Type, No. 31226) ; Jordan 

 & Hensiiaw, Kept. Chief Engin., app. nn, 1878, 188 ; Jordan & Gilbert, Synopsis, 127,1883. 



284. CATOSTOMUS REX, R. S. Eigenmann. 



Head 4; depth 4. D. 11; A. 6. Scales 13-80-8, 35 before dorsal. 

 Head broad, flattish, the cheeks very long. Mouth small ; lower jaw 

 strong, the premaxillaries forming a hump on the snout ; 2 rows of 

 papilhe on upper lip ; eye 8 in head, little behind the middle ; snout 2J 

 in head. Scales peculiar, covered with skin at base. Ventrals not reach- 

 ing halfway to vent. Dorsal as high as long, its last rays almost as 

 ong as the first : pectorals reaching halfway to ventrals. Caudal peduncle 

 ong, terete. Lateral line interrupted behind. Teeth moderate. Black- 

 ish above, paler below ; scales of belly dark-dotted; fins dark. Length of 

 typo 32 inches. Lost River, Tule Lake, Oregon. (Eigenmann.) {)'ex, 

 king.) 



Catoslowus rex, KosA Smith Eigenmann, American Naturalist, July, 1891, 0(17, Lost River, 

 Oregon. 



Subgenus DECACTYLUS, Rafinesque. 

 285. CATOSTOMUS LABIATUS, Ayres. 

 Head 4| in length, rather bluntish ; mouth moderate, the labial papillt© 

 largely developed; the upper lip full, with about 5 rows of large but 

 rather sparse papillae. Scales 12-74-10. Dorsal fin short, higher than 

 long, of about 11 rays. Color dark above ; sides clouded with black and 

 yellow. Klamath Lake, Oregon; only one specimen yet known, (la- 

 biatus, large-lipped.) 



Catoslomiis biblitlu^, Ayres, Proc. Cal. Ac. Sci., 1855, 32, Klamath Lake, Oregon ; Jordan,/. c, 

 173 ; Jordan & Gilbert, Synopsis, 128,1883. 



*Thu8 described liy Mr. Mather: "Brown; male with a red lateral band in the breeding .<ea^ion; 

 head slender, tUittonod aliove, the snout shorter than in C. catostnim<s; lip.s thick, the lower with 

 3 or 4 rows of tubercles : eye large, 4 in head, 13^^ in snout. Scales smaller anteriorly, but little 

 crowded; dorsal higher than long; i)ectorals reaching front of dorsal; head 4; depth 5. D. I, 10. 

 A. 7. V. 9. Scales 14-99-U; L. (spawning specimens) 4i.i inches. Big Moose Lake, Adirondack 

 region.- Apparently a dwarfed brook variety of C. calostomm, but inhabiting the same region 

 and spawning at a much smaller size." 



F. N. A. 13 



