136 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — IV. 



151. M. EBieBaaBOps (Raf.) Jortlau.— ,S/?o«cfZ Mullet; Striped SticLcr. 



Body obloug, little compressed, the youug nearly terete, the adults 

 deeper bodied; the dorsal region not elevated. Depth about 4 in 

 length, varying from about 3 in adults to 4^ in the young. Head not 

 very large, 4^ in length of body (4^-4J), not specially depressed. Mu- 

 cous pores rather strong. Eye small, 5-G in head. Mouth quite 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. Fiu-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 blackish spot at its base, these spots forming interrupted 

 longitudinal lines along the rows of scales. These lines are usually 

 very distinct, especially in 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 in spring. No great changes with age, either in 

 form or coloration. Size large; maximum length about 18 inches. 

 Great Lake region to South Carolina and Texas. 



(Catostomus melanops Raf. Iclith. Oh. 1820, 57: Catostomus fasciatus Giintlier, vii, 19; 

 Jordan, Man. Vert. 318; Jordan, Bull. U. S. Nat. Mns. xii, 138.) 



6§.— M©S:€>STOMA Raiiucsriue. 



/ 



Bed Horse. 



(Ptijchosto)mis Ag.'j Teretuliis Raf.) 

 (Rafinesqxie, Ichtli. Oil. 1820, 54: tyi^o Catostomus anisurus Raf.) 



Body more or less elongate, sometimes nearly terete, usually more or 

 less compressed. Head variously loug or short, its length ranging from 

 3.^- to 5J in that of the body. Eye usually rather large, varying from 3 

 to 6 times in the length of the side of the head, its position high up 

 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. Eontanelle on top of head always well open, 

 the parietal bones not coalescing. Mouth varying much in size, always 

 inferior in position, the mandible being horizontal or nearly so. Lips 

 usually well developed, the form of the lower varying in different sec- 

 tions of the genus, usually with a slight median fissure, but never 

 deeply incised; the lips with transverse plicae, the folds rarely so 

 broken up as to form papillae. Jaws without conspicuous cartilaginous 



