')■">. CIIiiXDKOSTOMA. ' -"'5 



2. Chondrostoma soetta. 



Snvettft. 



Sueta, Bellon. De Aquat. p. 315. 



Chondrostoma nasus, Naccari, Ittiol. Adr. p. 413; De FiUppi, Cenni, 



p. 10. 



soetta (rjzela), Bonap. Faun. lUiL Pc<r. 



seva, CuiK ^- Val. x\u. p. 39(i. 



Chondrochvlus nasicus (!), Hcchrl, in liiim-gf/pr's ]iei-;m, i. p. 1031, 



and ii. 3.'p. 289 *. 

 Chondrostoma soetta, Heclcrl ^- Kncr, Siisswasscrf. p. 221. fig. 12S; 



Canestrini, Archiv. Zool. Anat. etc. iv. 186(i, p. 122. 



D. 12. A. 14-15. L. lat. 57-fiO. L. transv. 9/8. Vert. 44. 



The height of the body is one-fourth or rather more than one- 

 fourth of the total length (without caudal), the length of the head 

 one-tifth. Snout not much projecting beyond the mouth, the cleft 

 of which is somewhat arched. Pharyngeal teeth 7 or 6 — 6 or 7. 

 Four and a half longitudinal series of scales between the lateral lino 

 and ventral fin. Pectoral fin of moderate length, two-thirds of the 

 distance of its root from the ventral extending to the ISth scale of 

 the lateral line. 



Representing Ch. nasxs in rivers south of the Alps. 



a. Adult. Milan. Presented by Professor von Siebold. 

 ''-('. Half-grown. Eiver Itieka, Montenegro. From the Mila 

 Museum. 



3. Chondrostoma regium. 



Chondroehilus regius, Heckel, in Rmsegyer's Reisen, i. p. 1077, taf. 9. 



fig. 3. 

 Chondrostoma regia, Ilcckel, 1. c. ii. 3. pp. 278, 289. 



D. 12. A. 13-14. L. lat. G4-(jo. L. transv. 11/?. 



The height of the body is contained four times and one-third in 

 the total length (without caudal), the length of the head six times. 

 Snout projecting beyond the mouth, the cleft of which is nearly 

 straight in a transverse line. Pharyngeal teeth (G) 7 — 6. Pectoral 

 short, its length being two-thirds of that of the head. {Heel-.) 



Rivers Orontes and Tigris. 



4. Chondrostoma genei. 



Chondrostoma genei, Bonap. Faun. Itah Fesc. ; Ileckel, Sitzgshev. 

 Akad. Wigs. Wien, ix. 18-j2, p. 377. figs. 7-11 ; Ileckel ^- Knvr, 

 Siisswa.<:serf. p. 220. figs. 12(5 & 127 (pai-t.) ; Siebold, Siimcasserf. 

 p. 230 ; Cunestrini, Archiv. Zool. Anat. etc. iv. 1866, p. 124. 



jaculum, De Filippi, Cenni sui pesci d'aqua dolce, 1844, p. 11. 



* Ileckel himself witlidnuvs this genus and species, but he thinks the specimen 

 is identical with Ch. genei. However, it is described bv him as having 14 anal 

 rays and L. lat. fiO, which shows that it ought to have been referriKl to Ch. 

 soetta. The way in which tiie spocieis of Choyidrostoma are treated by this author 

 illustrates well the principles by which he was guided in his ichtliyological 

 attempts generally. 



