ll)4 Cochercll and Callaivaif — Fishes of the Genus Notropis. 



Oil account of the teetli, Hudsonius can not be derived from Cliriope 

 or Alhurnops. It appears to be a separate branch from the LuxiUne stem. 



MoxiAXA Girard. 



Scale extremely broad, quite large; radii 6 to 13 



iV. lutrensis (Baird & Girard). 

 Boulder County, Colorado. 

 Scale not nearly so l)road; radii (> to 9, very far apart 



N. formosus (Girard). 

 Colonia Juarez, Mexico. 

 X. formosus is a small, deep-bodied fish, the pigment so arranged as to 

 produce a conspicuous cross-hatching. There is a dark, narrow dorsal 

 band. Except for size, it reminds one rather of N. cornutus. 



This group seems to be a sej^arate branch from the Luxilines, but con- 

 siderably modified. 



CvPRiNELi.A Girard. 



Of this large group we have only two, i\^ niveus (Cope) from Raleigh, 

 N. C, and X. galacturus (Cope) from North Fork of Holston River, 

 Saltville, \a. They are much alike; warm reddish dorsally, the sides 

 silvery. N. galaclurns has the eye much larger than that of niveus. They 

 look just like X. albeolus, except that they are not so ileep-bodied. (The 

 eye of niveus is very much smaller than that of albeolus; diameter o}4 

 mm. in niveus, 5 in albeolus. ) 



The scales are moderately broad ; they may be separated thus : 

 Radii numerous (al)out 1(5), but feeble and evanescent, close together; 

 some sjjecimens have rudimentary basal radii . ... X. galacturus. 

 Radii few (about 8), more or less wavy, very far apart; sculpture dis- 

 tinct . X. niveus. 



C>/f>ri)iella may l)e derived from the Luxilines through such forms as 

 A', albeolus. This applies to the species examined; we do not know 

 whether or not tlie others would conform. 



Luxii.us Rafinesque. 



Scales large, with very distinct sculpture; radii numerous. Fishes deep- 

 bodied, X. cornutus (Mitchill) large and with much dark color in dorsal 

 region; X. albeolus (Jordan) smaller, and all subdorsal area pale reddish. 

 Both have the scales very broad. X. albeolus reminds one of X. atheri- 

 noides and jejunus in Xotropus s. str., but it is deeper bodied, and dis- 

 tinguished by the ])road scales. 



Nuclear area very broad, ^4 from base; radii 21 to 27; scale partly cov- 

 ered with ratlu-r thick skin X. cornutus. 



Nuclear area circular, I from l)ase; racUi 10 to 2:5 X. albeolus. 



Raleigh, N. C. 

 We iiave X. cornutus from Cross Lake Thoroughfare, Maine, and 

 Boulder County, Colorado, an enormous range! 



