99 FISHES OF THE CONNECTICUT LAKES. 
mm, Smaller back fin anterior to the larger one and 
provided with weak spines or rays. 
v. Body not especially elongate: 
no barbel at chin; ventrals 
with 3 or 4 rays each__Btops. 
vv. Body elongate; barbel at chin; 
ventrals with 7 rays each. 
BuRBOT. 
1. Lonenose Sucker. Catostomus catostomus (Forster). 
Head 4.2 (3.7 to 4.7) ; eye 5 (4.4 to 5.75) ; snout 2.25; interorbital 2.2 (1.75 to 
2.6) ; dorsal 10; anal 7; longest dorsal ray 1.4 (1.3 to 1.6) in head; longest anal 
ray 1.5 (1.45 to 1.85); longest pectoral ray 1.8 (1.18 to 1.44) ; longest ventral 
1.75 (1.7 to 2); scales about 18—-104-12. 
Body elongate, round and tapering; head long and slender, depressed and 
flattened above, broad at base, tapering into the long snout which overhangs 
mouth; lips thick, papilla in 2 or 3 rows in front, usually 4, sometimes 3 on 
side; eye moderate, slightly behind middle of head; origin of dorsal midway 
between tip of snout and base of caudal; lateral line much broken; peritoneum 
black. 
Brownish olive with lower parts white; back and sides with golden or bronze 
reflections or plain, frequently mottled or clouded with darker, the mottling 
often assuming the form of irregular cross bars. In breeding males there is 
often a rosy lateral stripe. 
Distinguished from the other sucker by having a longer head and nose and 
finer scales. Specimens from First Connecticut Lake range in length from 3.75 
to 5.37 inches, with an average of about 4.62 inches. 
This northern sucker was described from Vermont by Le Sueur as 
Catostomus longirostris. Forster first records it from Canada as 
Cyprinus catostomus. Tt is sometimes called “ red sucker ” and “ red- 
sided sucker,” owing to the red or reddish stripe that is frequently 
present along the side in the breeding season. It is also known as 
“small scale sucker.” It is found from New Brunswick and New 
England westward to the Great Lakes, and northwestward to Alaska. 
We collected it in Indian Stream, Perry Stream, streams connected 
with First Connecticut Lake, and in Second Lake. The largest speci- 
mens were found in Perry Stream. 
This species is regarded as a comparatively deep-water fish, seldom 
entering shallow water except to breed or feed upon the eggs of other 
fishes. In many waters it attains a much larger size than it does here. 
There seem to be two distinct sizes of adult fish. The small one was 
described by Mather ® as Catostomus nanomyzon. The food of this 
@Mather, Fred. Memoranda relating to Adirondack fishes, with descriptions 
of new species, from researches made in 1882. Twelfth Report Adirondack 
Survey, Appendix, Zoology, 1886, p. 36. 
