886 CONTEIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



Page 208. After Bhinichthys atronasua add : 



31S (h). R. badiiis Garojau. 



Browuisli, mottled; sides aud belly silvery. Front of dorsal midway 

 between nostril and eye. Scales 14-80-10; otherwise as in B. obtusm. 

 Clinch River. (Garman.) 



(Garman, Science Observer, 1881, 60.) 



318 (c). B. siiliiis Gariiiau. 



Clouded brown; a dark lateral stripe, bounded above by a silvery 

 line. Head depressed above and in front of eyes; snout rather broad, 

 thin, little projecting. First dorsal midway between eye and base of 

 c.iudal. Head 4^. D. 9; A. 8; scales U-GO-7; teeth 2, 4-4, 2. Coa- 

 huila, Mexico. {Garman.) 



(Garman, Science Observer, 1881, 61.) 



318 (d). R. inelcag^i*i«i Ag. 



Similar to E. odtusus, but with the jaws nearly equal. Head broad, 



narrowed anteriorly; lips small; teeth 2, 4-4, 2. Head 3|. D. 9; A. 



7; scales 11-70-8. Western Hliuois and Iowa. 



(Agassiz, Aui. Jouru. Sci. Arts, 1854, 357; Gannau, Bull. Mus. Comp. Zool. 1831, 86, 

 and Science Observer, 1881, 62.) 



318 (e). R. arciiatiis Garman. 



Similar to B. vieleagris, but with larger scales, and the teeth 1, 4-4, 1. 

 Head 4^; depth 5i. D. 8; A. 7; scales 9-04-7. Sand Hill Eiver, Min- 

 nesota. {Garman.) 



(Garman, Bull. Mus. Comp. Zool. 1881, 87, and Scieuoe Observer, 1881, 62.) 



Page 235, tenth line, read: "nearly reaching vcutrals.^^ 



Page 241. The specimens described in the text as Squalkis atrarius, 

 are the young of the species described on page 240 as Squalius rlioma- 

 leus. Sihoma atraria Cope ^s also identical with the latter species. 

 Whether Siboma atraria Grd. is the same is very doubtful. The follow- 

 ing are the characters assigned to it, and may be substituted for those 

 given in the text: 



397. S. atrarUis (Grd.) J. & G. 



Blackish above, mottled with dark; paler below. Body somewhat 

 elongate, subfusiform; caudal peduncle stoat; head larger than in /S'. 

 (/ibbosus; the fins lower; iirofile of head gently sloping forward, the 

 snout subconical. Mouth small, the maxillary not reaching to oppo- 

 site eye. Eye small, 5^ in head. Dorsal inserted over veutrals, nearer 



