136 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — IV. 
M. aBicSaiBO|>S (Raf.) Jordan. — Spotted Mullet; Striped Sucker. 
l>ody oblong, little compressed, the young nearly terete, the adults 
deeper bodied ; the dorsal region not elevated. Depth about 4 in 
length, varying from about 3 in adults to 44 in the young. Head not 
very large, 4^ in length of body (4^-44), not specially depressed. Mu- 
cous. pores rather strong. Eye small, 5-0 in head. ^louth (piite inferior, 
horizontal, rather small. Scales large, firm, regularly and smoothly 
imbricated, in 40 (44-47) longitudinal series and 13 (12-14) transverse 
series, the scales not crowded forwards. Fin-rays usually: D. 12; A. 
7; V. 9. Coloration dusky above, with usually a black blotch be- 
hind the dorsal fin. Each scale along the sides with a small, more or 
less distinct Idackish spot at its base, these spots forming interrupted 
longitudinal lines along the rows of scales. These lines are usually 
very distinct, esitecially iu the adult, but young specimens often show 
them faintly. Sides and belly silvery, with a coppery lustre. Sexual 
peculiarities moderately marked ; very old males with the head covered 
with small tubercles iu spring. ISio great changes with age, either in 
form or coloration. Size large; maximum length about IS inches. 
Great Lake region to South Carolina and Texas. 
{Catostomus rnclanops Raf. Icbth. Oh. 1820, 57 : Catostomus fasciatus Gunther, vii, 19; 
Jordan, Man. Veut. 318; Jordan, Bull. U. S. Nat. Mus. xii, 138.) 
6 §. — lTIC>X®STOI?IA Rafinesque. 
Eed Horse. 
(rtychostomus Ag. ; Teretulus Raf.) 
(Rafinesque, Ichth. Oh. 1820, 54: type Catostomus anisurus Haf.) 
Body more or less elongate, sometimes nearly terete, usually more or 
less compressed. Head variously long or short, its length ranging from 
3J to 5.} iu that of the body. Eye usually rather large, varying from 3 
to C times iu the length of the side of the head, its position high uj) 
and median or rather posterior. Suborbital bones very narrow, always 
much longer than broad, their width less than one-fourth that of the 
fleshy part of the cheek. Eontauelle on top of head always well open, 
the parietal bones not coalescing. Mouth varying much iu size, always 
inferior in position, the mandible being horizontal or nearly so. Lips 
usually well developed, the form of the lower varying iu different sec- 
tions of the genus, usually with a slight median fissure, but never 
deeply incised ; the lips with transverse pliem, the folds rarely so 
broken uii as to form painllm. Jaws without conspicuous cartilaginous 
