COMMON SUCKER. 8L7 



Cotoatomua aurora, Agassiz, Lake Superior, 1850, 360, pi. 2, f. 3 4; Pdtnam, Bull. Mas. 

 Coiiip. Zool., 1863, 10. 



Acomus aurora, GiRARD, Proo. Acad. Nat. Soi Phila., 1856, 173. 



Jcomus grUeua. Girard, Proo. Acad. Nat. Soi. Phila , 1856, 174 ; U. S. Pao. E. R. Expl , 

 X, l-.l-i, 'i2i, pi. xlix. 



Cutosiomus griseus Gunther, Cat Fishes Brit. Mus., vii, 1868, 14. — Jordan and Cope- 

 land, Chfck L 8t, 1"76, 156. 



Catostomm griseum, Copb, Ilnydeu's Geol. Surv. Wtoming, 1870, 434, 



Catoslomm laitarius, Girard, Proo. Aoid. Nat. Sol. Phila., 1836, 174. — Jordan and Cope- 

 land, Chick List, 1876, 156. 



Acomus lactariws, GiRARD, U. 8 Pao. E. R. Expl,, x, 1858, 223. 



Deseriptien. — Body elongate, subterete; head quite long and slender, depressed and 

 flattened above, broad at base but tapering into a long snout, which oonsidtiriibly over- 

 hangs the large mouth; lips thick, coarsely tuberculaiiri; the upper lip narrow, witu 

 two or three lows of papillse; jaws without cartilaginous sheath; eye rdther soiall, 

 behind the uiiildlo of tho hsad ; fontanelle largn ; scales very small, much crowded fur- 

 wards; color dusky above, pale below, the males in spring with a broad rosy lateral 

 band, and with the head and anal fin profusely tuberculate, the tubercles ou ih« ht-ad 

 email; head 4^ to 4 J in length; depth 4i to 4f ; D., 10 or 11; lat. 1., 95 to 114; 26 to 31 

 ecales in a oroos aeries irom dorsal to ventrals. Length, li to 2 feet. 



Habitat, Great Lake region to Alaska, very abundant throughout British America. 



D'agnosis. — This is the enly Ohio Sucker which has more than 70 

 scales ill the lateral line. 



Habits. — This fish is quite abundant in Lake Erie, where it is taken 

 witb other species in the net. It does not often ascend the streams, and 

 is aloQOSt never seen in waters tributary to the Ohio. It is a fish of 

 northern distribution and likes cold, clear waters. 



39. Catostomos teres (Mitchell) LeSueur. 



Coitsmon Sucker; White Sucker; Brook Sucker; Fine- 

 scaled Sucker. 



S^Cgprin commereomea, Lacepkdb, H st. Nat. de.s Poiss., v, 1803, 502, 508. 



Ositoatomua conimeraoni, Jordan, Man. Vert , 2d Ed., 1878, p 32U. 



Cgprinua cuiostomus, Peck, Mtm Am. Acad., ii, 18—, pt. 2, p. 55, pi. 2, f. 4. (Not of 

 Porster.) 



Cgprinus teres, Mitchill, Lit. and Phil. Trans. New York, i, 1814, 458. 



Catoatemua teres, LbSueur, Journ. Acad. Nat. Sci. Phila., 1817, 108. — Thompson, Hist. 

 Vt., 1842, 131. — CcviKB and Valenciennes, xii, 1844, 468. — Storer, Synopsis, 1^46, 

 423. — Agassis, Am. Jonrn. Sci. Arts, 2d series, xix, 1855, 208 — Gunther, (Jat. Fishes 

 British Mus., vii, IS68, 15.-^Copb, Proo. Am. Philos Soc Phila., 1870, 468. — Jordan, 

 Fishes of Ind., 1875, 221 ; Man. Vert., 1876, 293 ; Bull. U. S. Nat. Mas., ix, 18/7, 37 ; 

 xii, 1878, 166— Nelson, Bull. No. 1, Ills. Mus. Nat. Hist., 1876, 48.— Jordan and 

 CoPKLiND, Check List, 1876, 156.— Jordan and Gilbert, ia Klippart's Eept., 1876, 

 53 ; ib., 1878, 84, pi, xii, f. 18-19. 



52 



