886 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 

 I 'age 208. After Rhinichtltys atroitasux add: 



',/'}. 11. hudilis Carman. 



Brownish, mottled; .sides and belly silvery. Front of dorsal midway 

 between nostril and eye. Scales 14-80-10; otherwise as in R. obtusii.s. 



Clinch Kiver. (Gar man.) 



(Garmaii, Science Observer. 1881, GO.) 



318 (c). R. sillliis Gannan. 



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

 huila. Mexico. (German.) 



(Garman, Science Observer, 1881, 61.) 



318 (rf)- R 



Similar to R. o&/s.s-, 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 Illinois and Iowa. 



(Agassi/., Am. Journ. Sri. Arts, 1K">4. o5? ; Uarman, Bull. Mns. Couip. Zocil. 1881, ~i>, 



Illiil Sriclirr ( )liS<TV<T, 1881, G'J. ) 



318 0). R. arenatus Garinau. 



Similar to R. meleagris, but with larger scales, and the teeth 1. 44, 1. 

 Head 4}; depth 5, D. 8; A. 7; scales 9-(i4-7. Sand Hill Biver, Min- 

 nesota. (Garman.) 



(i Janiiaii, Bull. Mas. Comp. Zool. 1881, 87, and Science Observer, 1881,62.) 



Page L'.'J."), tenth line, read: "nearly reaeliing rciitrnlx." 1 



Page I'll. The specimens described in the text as Squalins (itrariitx, 

 are the young of the species described on page L'K) as XijUttliuN rlto/na 

 lens. XibotiHt at curia Cope is also identical with the latter species. 

 Whether Kihonm atcacia (ird. is the same is very doubtful. The follow- 

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

 i;iveii ill the text: 



3)7. S. :if rarms (Grd.) .1. A ('.. 



I'.lackish above, mottled with dark; paler below. P.ody somewhat 

 elongate, siiltl'iisil'orm; caudal jteduncle stout; head larger than in &. 

 i/ihboxHx; the tins lower: profile of head gently sloping i'oi'ward, the 

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

 site eye. Eye small, .">.] in head. Dorsal inserted over ventrals, nearer 



