56. LEuciscrs. 251 



a. Four inches long. 8iisquohannah Elver. Presented by Thomas 

 Moore, Esq. 



I am unable to find in tliis fish the barbel described by Girard. 



Prof. Agassiz mentions an Ilyhopsis dorsaVis (Sillim. Joura. 1854, 

 xvii. p. 358) from Iowa, without giving a characteristic diagnosis. 

 We have examined three specimens sent by him to the Liverpool 

 Museum ; they are a little more than an inch long, and appear to 

 be the young of L. storerianus. 



61. Leuciscus hudsonins. 



The Spa^sTi-eater. (Smelt.) 



Clupea liudsonia, Clinton, Ann. Lye. Nat. Hist. Xnv YorJ:, i. 1824, 



p. 49, pi. 2. tig. 2. 

 Leuciscus hudsonius, Delni/, Nat. Hist. New York, Fish. p. 206, pi. 34. 



fig. 109; Storer, tSi/nops. p. 157; Agassiz, Lake Super, p. 272. 

 Hudsonius fluviatilis, Girard, Proc. Ae. Nat. Sc. Fhilad. 1856, p. 210. 



amarus, Girard, I. c. 



Hj'popsis phaenna, Cope, Proc. Ac. Nat. Sc. Phil. 1864, p. 279. 

 hudsonius, Cope, Trans. Am. Phil. Soc. xiii. p. 386, pi. 12. fig. 3. 



D. 9. A. 9. L. lat. 38-39. L. transv. 6/6. 



Head and body oblong. The length of the head is somewhat 

 more than one-fifth of the total (without caudal), the height of the 

 body ouc-foiu'th. Head two-thirds as deep as long. Eye large, 

 one-thu'd of the length of the head, equal to the width of the inter- 

 orbital sj^ace, and considerably longer than the snout. Snout very 

 obtuse, overlapi)iug the small horizontal mouth. Suborbital bones 

 very narrow ; proeorbital as long as deep, larger than the postorbital. 

 The origin of the dorsal fin is opposite to that of the ventrals, and 

 nearly midway between the end of the snout and root of the caudal. 

 Caudal fin forked. Th,e pectoral fins terminate at some distance 

 fi'om the ventrals. There are three and a half longitudinal series 

 of scales between the lateral line and ventral fin. Silvery; a 

 blackish spot on the root of the caudal. 



Pharyngeal teeth 4 , 2 or — 1 or 2 . 4. 



United States. 

 a. Three inches long. Lake Superior. Presented by Thomas 

 Moore, Esq. 



62. Leuciscus kentuckiensis. 



Luxilus kentuckiensis, (Pajin.) Kirtland, Post. Joiirn. Nat. IL'st. v. 



p. 27, pi. 8. fig. 3. 

 Leuciscus kentuckiensis, Storer, Mem. Amer. Ac. ii. p. 410. 

 Cyprinella keutuckiensis. Cope, Proc. Ac. Nat. Sc. Philud. 1864, p. 279. 

 Hypsilepis kentuckiensis, Cope, Trans. Am. Phil. Soc. xiii. p. 371, 



■pi. 11. tig. 3. 



D. 9. A. 10. L. lat. 38-40. L. transv. 6-7/5. 



The height of the body is contained four times in the total length 



(without caudal), the length of the head four times and one-third. 



Snout somewhat acate, longer tlian the diameter of the eye, Avhich 



is one-fourth or one-fifth of the length of the head ; upper jaw 



