Longnose Sucker, Catostomus catostomus

 

Species List

White Sucker

Scales small, usually over 90 in lateral line; lower lip completely cleft, no rows of papillae cross ahead of base, at most 1 row of small papillae on floor of cleft, only 2 rows of papillae on upper lip; cartilagineous edge of jaw not conspicuous without pulling lips back ; never a notch at point of lateral connection of upper and lower lips; least caudal peduncle depth more than one-half length of dorsal base; no membranous stays between pelvic fins and body