244 FISHES OF KANSAS. 



differences are uot even specific, but are rather individual variations, 

 due possibly to age, sex, or accident. There is a good deal of difference 

 between the two sexes in the colors; the females being usually quite 

 plain and having yellow or orange fins ; while the males are brilliant 

 with blue and green reflections, and are especially marked by a shoulder 

 baud of violet. Their lins are bright red or orange. Professor Jordan 

 (Proc. U. S. Nat. Mus., 1885, 0) has already recognized these differences 

 in the sexes. Now, of these undoubted males, nearly all specimens ex- 

 amined have the teeth in a single row of 4 on each pharyngeal. In the 

 collection made in the Saline, near WaKeeuey, is a specimen which yet, 

 after lying in alcohol a year, retains some traces of the violet shoulder 

 band and the orange of the snout and of the lower and caudal fins. Its 

 dentition is plainly 1, 4-4, 1. It is possible, however, that it is a female: 

 but it is undistinguishable, except by its somewhat faded colors and 

 dentition, from another specimen from the same place whose teeth are 

 4-4. In the Kirwin collection is an undoubted male, with the shoulder 

 band bright violet, whose right pharyngeal has the outer row of four 

 teeth and uo trace of the inner-tooth, while the left pharyngeal has the 

 teeth 1-4. A female also is found in the same collection whose teeth 

 are 1, 4-4, 0; but there are some evidences that the inner tooth on the 

 right side has been broken oft'. This latter specimen shows the follow- 

 ing additional characters: Depth 2^^ in length, scales G-35-3; fins yel- 

 low, probably orange in life; anal filled with satiny pigment. 



Many of the females obtained at Beloit have teeth 4-4; others 1, 

 4_4, 0; others still 1, 4-4,1. When the teeth are not symmetrically ar- 

 range<l on the two sides it is possible in some cases that a tooth may 

 have been recently shed or broken off, but close examination usually 

 shows no traces of its former existence. 



It seems probable, therefore, that the young and many of the females 

 have an inner tooth on one or both pharyngeals; while the adult males 

 are seldom so provided. 



The species varies much in the relation of depth to length of body. 

 It is not difficult to obtain a series in which the ratio of depth to length 

 rises gradually from 2i to 4, and this in specimens having the same ab- 

 solute length. If the deeper-bodied specimens should have the teeth 

 in two rows, they might be regarded as belonging to CyprineUa umhrom 

 or hubalina; and the slenderer ones to suav'is or lepida. 



1 think it will also be found that the number of scales in the lat- 

 eral line is quite variable; but on this point I can speak with less con- 

 fidence. C. unihrosa is stated to have 42 scales in the lateral line ; but 

 I am not aware that there is any other basis for this statement than 

 Girard's figure. 



8. Notropis niacrostoma (Girani) Jor. 



('ijprUmUa macrostoma, Girard, Proc. Acad., Pliila., 185d, I'Jd. 



A single specimen found in the Beloit collection, and four in that 

 made at Wa Keeney, are referred to the above species. At first view 



