. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. FISHES OP OREGON AND NOBTIIERN CALIFORNIA. 181 25. Hybopsis crameri, now .species. This species, which is apparently very different from any other in the , is distinguished by ha\ing the teeth in 2 row^the grinding surface l)eing at the same time well developed, and in possessing a markedly deep and compressed body with a relatively slender caudal peduncle. It is the only sj^ecies" known to occur west of the Rocky Mountains. It has been found in the Willamette and Umpqua rivers. Head 4 in length, depth depth of ca
. Bulletin of the Bureau of Fisheries. Fisheries; Fish culture. FISHES OP OREGON AND NOBTIIERN CALIFORNIA. 181 25. Hybopsis crameri, now .species. This species, which is apparently very different from any other in the , is distinguished by ha\ing the teeth in 2 row^the grinding surface l)eing at the same time well developed, and in possessing a markedly deep and compressed body with a relatively slender caudal peduncle. It is the only sj^ecies" known to occur west of the Rocky Mountains. It has been found in the Willamette and Umpqua rivers. Head 4 in length, depth depth of caudal peduncle in head, dorsal 8, anal 7, scales in lateral line 37, above lateral line 7, between occiput and dorsal 16. Body notably deep and compressed, the caudal peduncle slender; width of body contained times in the depth. Dorsal contour evenly curved and gradually rising from occiput to origin of dorsal, from which point it rapidly falls along base of fin, then curves more evenly and gently to base of caudal; profile concave over eye, the snout blunt; ventral outline evenly rounded from throat to end of anal l)ase. Eye round, located in anterior half of liead; interorbital space convex, its width contained times in head; mouth oblique: jaws equal; premaxillary protractile, its length equal to diameter of orbit, reacliing posteriorly to or slightly beyond edge of orbit; a minute barbel on the lower posterior edge. Pseudobranchia present; gillrakers very short and blunt, some of them mere knobs, 5 on. Fig. 5.—Hybopsis new species. Type. first arch. Teeth rather slender, in 2 rows; 4 in the major row, slightly hooked and with a narrow grinding surface; 1 in the minor row. Alimentary canal short, coiled like the letter S. Peritonevim silvery, sparsely stippled with black Ln the dorsal region. Scales large and regular. Lateral line complete, decurved on 3 scales near its origin, then running nearly straight alongside of body to base of caudal. Origin of dorsal fi
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