886 CONTEIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
Page 208. After lihinichthys atronasun add: 
J{1§ (6). K. budiiis Garman. 
Browuisb, mottled; sides aud belly silvery. Front of dorsal undway 
between nostril and eye. Heales 14-80-10; otherwise as in E. obtusus. 
Clinch Elver. [Garman.) 
(Garmau, Scieuco 01)scrver, 1881, GO.) 
S]§ (c). K. Garmau. 
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 
caudal. Head 4:|. H. 9; A. 8; scales 9-G0-7 ; teeth 2, 4-4, 2. Coa- 
huila, Mexico. [Garman.) 
(Garmau, Science Observer, 1881, 61.) 
31.8 {d). R. iiicleagris Ag. 
Similar to B. ohtusun, but with the jaws nearly equal. Head broad, 
narrowed anteriorly; lips small; teeth 2, 4-4, 2. Head 3|-. H. 9; x\. 
7; scales 11-70-8. Western Illinois and Iowa. 
(Agassiz, Am. Jourii. Sci. Arts, 1854, 3.57; Garman, Bull. Mus. Comp. Zool. 1881, 86, 
ami Science Observer, 1881, 6'2.) 
318 (e). R. areiiatiis Garmau. 
Similar to B. meleagris, but with larger scales, and the teeth 1, 4-4, 1. 
Head 4| ; depth 5 H. 8 ; A. 7 ; scales 9-04-7. Sand Hill Eiver, Min- 
nesota. [Garman.) 
(Garman, Bull. Mus. Comp. Zool. 1881, 87, aud Science Observer, 1881, 62.) 
Page 235, tenth line, read: “nearly reaching ventrals.’’’’ 
Page 241. The specimens described in the text as Squalius atrarius, 
are the young of the species described on page 240 as Squalius rhonui- 
leus. Siboma atraria Cope is 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: 
307. S. atriti'iBis (Grd.) J. & G. 
Blackish above, mottled with dark; paler below. Body somewhat 
elongate, subfusiform ; caudal peduncle stout; head larger than in S. 
gibbosus; the fins lower; iirofile of head gently sloping forward, the 
snout subconlcal. Mouth small, the maxillary not reaching to oppo- 
site eye. Eye small, 5^ in head. Dorsal inserted over ventrals, nearer 
