79. AliRAMIS. 3U9 



Although the structure of the branchial organs of this and the 

 preceding species are not known, their affinity to A. bipimctatus is 

 evident. 



14. Abramis lateralis. 



Ricbardsonius lateralis, Girard, in Proc. Ac. Kat. Sc. Philad. 1856, 

 p. 202 ; or in U.S. S,- Pac. R. R. Exp. Fish. p. 279, pi. 60. figs. 5-8. 



D. 12. A. 17. 



Apparently allied to A. balteatus. The height of the body is con- 

 tained thrice and two-thirds in the total length (without caudal). 

 Jaws even in front ; cleft of the mouth slightly oblique, anterior. 

 Origin of the anal fin conspicuously in advance of the last dorsal 

 ray. A blackish streak runs along the side, just above the lateral 

 line and partly covering it. (Gir.) 



Fort Steilacoom, Puget's Sound. 



lo. Abramis balteatus. 



Cyprinus (Abramis) balteatus, Richardson, Faun. Bor.-Amer. Fish. 



p. 301. 

 Ricbardsonius balteatus, Girard, in U.S. ^ Pac. R. R. Exp. Fish. 



p. 278, pi. 60. figs. 1-4. 



D. 11. A. 19-22. L. lat. 57. Vert. 40. 



Body moderately elevated, its depth being contained thrice and 

 one-third in the total length (-ndthout caudal). Snout rather short, 

 conical, the lower jaw slightly projecting beyond the upper ; mouth 

 anterior. Back of the tail without keel. Origin of the anal fin 

 vertically below the eighth dorsal ray. Coloration uniform. 



Pharyngeal teeth 4 . 3 or 2 — 2 . 4 or 5. 



Columbia River. 



16. Abramis (?) oligaspis. 



Alburnus oligaspis. Cope, Proc. Ac. Kaf. Sc. Philad. 1864, p. 282. 

 D. 1/8. A. 1/14. V. 7. L. lat. 41. L. transv. 5/?. 

 Under jaw projecting a little beyond upper. Head conic in pro- 

 file, with muzzle compressed, one-fifth of [total] length to notch of 

 caudal. The diameter of the eye is contained thrice and one-fifth in 

 the length of the head. Fins short, except anal. Two longitudinal 

 series of scales between the lateral line and the root of the ventral. 

 A broad silvery lateral band. (Cope.) 

 From Kansas ; two inches long. 



I do not know this species, but there is an example in the Liver- 

 pool Museum, sent by Professor Agassiz as " AJhurmat ruheVus from 

 Lake Superior," which agrees in every point with the diagnosis of 

 A. olii/ditpis, and not at all with the long description and figure of 

 A. ruhcJIus in •' Lake Superior,' p. 364. The shortness of the gill- 

 rakers of that specimen (most probably identical with A. olif/a.^ju's) 

 induces me to remove the species from Ahrainis. The lower jaw is 

 described by Mr. Cope as projecting ; but in the Liverpool example 

 this is only the case wlieii tlie mouth is opened. 



