79. AUKVMis. 309 



Altliough the structure of the branchial organs of this <ind the 

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

 evident. 



14. Abramis lateralis. 



Richardsonius lateralis, Girard, in Proc. Ac. Nat. Sc. Philad. 1856, 

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



D. 12. A.. 17. 



Apparently allied to A. halteatus. 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 latt^ral 

 line and partly covering it. {Gir.) 



Fort Steilacoom, Puget's Sound. 



lo. Abramis balteatiis. 



Oyprinus (Abramis) balteatiis, Ridiardson, Finiti. lior.-Anur. Fish. 



p. 301. 

 Richardsonius balteatiis, Girard, in U.S. Sf Pac. R. R. Ejj). Ft.th. 



p. 278, pi. 00. 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 (without caudal). Snout rather short, 

 conical, the lower jaw slightly projecting beyond tlie upper ; moath 

 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. 

 Albumus oligaspis, Cope, Proc. Ac. Nat. Sc. Philad. 1804, 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 "■ AVmmus ruheUus from 

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

 A. oligaspis, and not at all with the long description and figure of 

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

 rakers of that specimen (most probably identical with A. oJi;/axj)is) 

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

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

 this is only the case when the mouth i-^ opened. 



