20ki PISCKS. 



Labeo, Cuv. 



A long dorsal, as in the Carp properly so called, but neither 

 spines nor cirri; remarkably thick, fleshy lips, frequently crenated. 

 They are all foreign to Europe.(l) 



Catostomus, Lesueur. 



The same thick, pendent and fringed, or crenated lips as in LV 

 beo; but the dorsal is short, like that of a Leuciscus, and is oppo- 

 site to and above the ventrals. From the rivers of North Ame- 

 rica. (2) 



Leuciscus, Klein. 



The dorsal and anal short; neither spines nor cirri; nothing par- 

 ticular about the lips. This subdivision is rich in species, but they 

 are not much esteemed. They arc known in different parts of France 

 by the various and rather indistinct appellation of 3Ieunier, Che- 

 vamu, Gardon, Sec. (3) 



We distinguish them by the position of the dorsal, a character 

 however which is not always sufficiently well marked. In some it 

 is opposite to the ventrals. Of this group wc find in France, 



L. dobula; Cyp. dobula, L., Bl., 5; Le Meunier. The head 

 broad, and snout round; pectorals and ventrals, red. 



L. idus; C. idus; Le Gardon^ Bl., 6, and better Meidinger, 36. 

 About the same colours; the. head narrower, back higher, and 

 snout more convex. 



L. rutilus; Cyp. rutilus, L. ; La Rosse, Bl., 2. Body com- 

 pressed, silvery; red fins. 



L. vulgaris; Cyp. leuciscus; La Vandoise, Bl., 97, f. I. Body 

 straight; fins pale; snout slightly prominent. The 



Z. nasus; Cyp. nasus^ L. ; Le Nez^ is taken in the Rhine; its 

 snout is more salient and obtuse than that of the Leuciscus.(4) 



(1) C. niloilcus, GcoflT., Foiss, du Nil, pi. ix, f. 2; — C. Jimbriaitis, Bl., 409, to 

 which must be added Xhe Caiostomus cyprinus, Lesueur. 



(2) M. Lesueur describes seventeen species, Journ. Acad. Nat. So. ofPhilad., 

 1817, vol. I, p. 88 et seq. and figures nine of them; the first, however. Cat, 

 cyprinus, must be abstracted, as it is rather a Labeo. Add Cypr. teres, Mitch-, op. 

 cit., I, vi, 11, and the Cyprin sucet, Lacep., V, xv, 2. [These fishes are the Suck- . 

 ers of the United States. «2?«. Ed.] 



(3) Bloch and his successors have not adhered to the customary application of 

 these French names, which they have distributed almost at random. 



(4) Add: C. grislagine,- — C yeses, and of foreign species, C. ^a/a, Cuv., Kuss., 

 207; — C. iolo, Cuv., Kuss , 2o8;— C. loga, Buch. Pise. Gang., pi. xxviii, f. liO;— C. 



