272 CTPBINID.E. 



63. CHONDROSTOMA *. 



Chondrostoma, Agassiz, Mem. Soc. Hist. Nat. Neuchat.'i. 1835, p. 88. 

 Chondrostoma, Chondrochylus, et Chondrorhynchus, Hcckel. 



Scales of moderate size or small. Lateral line terminating in the 

 median line of the depth of the tail. Dorsal fin short, with not 

 more than nine branched rays, inserted above the root of the ven- 

 trals. Anal fin rather elongate, with ten or more rays. Mouth 

 inferior, transverse, lower jaw with a cutting edge, covered with a 

 brown homy layer. Barbels none. Gill-rakers, short, fine ; pseu- 

 dobranchise. Pharyngeal teeth 5 or 6 or 7 — 7 or 6 or 5, knife- 

 shaped, not denticulated. Peritoneum black. 

 • Europe and Western Asia. 



1. Chondrostoma uasus. 



Nase ; Nasling. Le Nez. 



Nasus, Gesner, p. 170; Aldrov. v. c. 26. p. 610; Willughhy, p. 254; 

 Artedi, Gen. p. 5. no. 1 5 ; and Si/non. p. 6. no. 9 ; Mursifjli, Danuh. 

 Pmi.-Mys. iv. tab. 3. figs. 1-2. 



Cyprinus, sp., Gnmov. Zocphyl. no. 332. ■ 



Cyprinus nasus, L. Syst. Nat. i. p. 5.30; Bloch, Fische Detttschl. p. 35, 

 taf. 3 ; Hartm. Helvet. Ichthyol. p. 212 ; Meidinger, tab. 12; Gronov. 

 Syst. ed. G7-ay, p. 185 ; Pallas, Faun. Poss.-As. iii. p. 304. 



Chondrostoma nasus, Agass. I. c. ; Nordmann, in Demid. Voy. Rms. 

 Mcrid. iii. p. 493; Selys-Longchamps, Faune Belg. p. 204; Cut: 8,- 

 Val. xvii. p. 384 ; Gimth. Fische des Neckars, p. 99 ; Rapp, FiscTw 

 des Bodensee's, p. 11 ; Heckel 8) Kner, Silsswasscrf. p. 217 ; Sicbold, 

 Siiss2vasserf. p. 225; Jeitteles, Fische d. March, ii. 1804, p. 17; 

 Blanchard, Poiss. France, p. 413. 



Chondrostoma cserulescens, Blanchard, I. c. p. 416. 



dermsei, Blanchard, I. c. p. 418. 



D. 12. A. 13-14. L. lat. 57-62. L. transv. 9/9. 

 Vert. 27/21. 



The height of the body is two-ninths or one-fourth of the total 

 length (without caudal), the length of the head one-fifth or nearly 

 one-fiLfth. Snout considerably projecting beyond the mouth, the cleft 

 of which is nearly straight in a transverse line. Pharyngeal teeth 

 (7) 6 — 6. Five longitudinal series of scales between the lateral line 

 and ventral fin. Pectoral short, terminating at a great distance from 

 the ventral, extending to the 14th or 16th scale of the lateral line. 



Continent of Europe, north of the Alps. 



a, h. Adult. Danube. From the Stuttgart Collection. 



c-d. Adult and half-grown. Bavaria. Purciiased of Dr. Gem- 



minger. 

 e, f-g. Adult. Neckar. From the Stuttgart Collection. 

 h. Adult. Holland. Purchased. 

 i. Adult: skeleton. Neckar. From Dr. A. Gunther's Collection. 



On a hybrid between this species and Leuciscus muticellns, named 

 Chondrostoma rysela, see p. 235. 



* 1. Cyprinus labeo. Pallas; see under Capoeta, p. 77. 



2. Chondrostoma rhoclancnsis, Blanchard, Poiss. France, p. 420. — Rhone. 



