160 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — III. 



f Foutanollti well developed : li^js without evident cartilaginous sheath. 

 (/. Dorsal flu couiparatively long, of 12 to 14 raj's. 



e. Mouth quite largo, with very large lijjs, the upper lull and pendent, 



with G to 8 rows of etroug papilla) : head large, 4J in length, 



rather narrow, quadrangular, the snout projecting : eyo 



large: dorsal fin much longer than high, its ray.s about 14: 



♦ scales 12-72-10 : coloration rather dark ; a dusky lateral 



stripe MACiJDCHiLUS, 28. 



ee. Mouth comparatively small, smaller than in C. teres; the upper lip 

 thick, with 5 or G rows of papilla;, which are moderately 

 largo: head rounded above, 4^ in length, the profile steeper 

 than in C. teres, the snout more iiointed, the two sides of the 

 head more convergent forwards: eyo small : dorsal fin longer 

 than high, its rays 12 to 14: scales 1:5-72-10. 



OCCIDKNTALIS, 29. 



dd. Dorsal fin short, higher than long, of about 11 developed rays: head 4 J 

 in length, rather bluutish : mouth moderate, the labial papilhe 

 largely developed, the upper lip full, with about 5 rows of 

 large but rather sparse papilla; : scales 12-74-10 : color dark 

 above; sides clouded with black and yellow. ..labiatcs, 30. 



JtFontanelle very small and narrow : both jaws with a weak cartilaginous sheath : 

 body elongate, fusiform, eubterete, the greatest depth 4J to 4^ 

 in length : head small, conical, 4f in length : mouth quite 

 large, with full, thick lips, the upper very wide and pendent, 

 with about 6 rows of very strong papilla; : lower lip two- 

 lobed, similarly papillose: interorbital space wide, convex : 

 eye elevated, posterior, quite small: fins moderate; dorsal 

 higher than long, with 10, rarely 11, rays: ventral rays 10: 

 scales small, crowded forwards, 10 or 9-70-8 : color dark ; 



scales with dark pnnctulations aujcopus, 31. 



••• Scales very small, much reduced and crowded anteriorly; 83 to 115 in the lateral 

 line, and 25 to 40 in a transverse series from the ventrals to 

 the dorsal : body and head more or less elongate : sides with a 

 broad rosy or orange lateral band in spring males. {Cato- 

 atomus.) 



^ Fontanelle well developed: jaws without evident cart ilaginons sheath. 



/. Upper lip comparatively thin and narrow, with but few (3 or 4) rows 

 of papilla\ 

 g. Body shorter than in the next, but still elongated, its greatestdepth 

 4^ to 5 in length : head very large and long-acuminate, the 

 muzzle nearly one-half its length, overhanging the rather 

 largo mouth : lips moderate; the upper pendent, with about 3 

 rows of small papilla? ; tho lower rather full, siunlarly papil- 

 lose: eye nearly median, rather small, 8^ in head: scales 

 Bmall and crowded forwards, closely imbricated, 83 to 87 in 



