56. LEuciscrs. 217 



4. Leuciscus macrolepidotus. 



Ruivaca (Portugal). 



Steindachncr, Sitzysher. Ak. Wiss. Wien, 18G0, liv. pp. 15, 272, taf. 1. 

 fig. 4. 



D. 10. A. lO(-ll). V. 9-10. L. lat. 33-36. L. transv. 7/4|. 



Body obloug, its depth being contained thrice and two-thirds in 

 the total length (without caudal). Mouth terminal, the upper jaw 

 slightly overlapping the lower. There are two and a half longitu- 

 dinal series of scales between the lateral line and ventral fin. An 

 indistinct greyish band along the side. 



Portugal. 



a. Four inches long. River d'Alco-bo^a. Presented by Dr. B. 



du Bocage. 

 h-c. Three and four inches long. Coimbra. Presented by Dr. B. 



du Bocage. 

 d. Three inches long. Cintra. Presented by Dr. B. du Bocage. 



5. Leuciscus albumoides. 



Leuciscns (Leucos) alburnoides, Steindachner, Sitzasber. Ak. Wiss. 

 Wien, liv. 18G6, p. 2G3, taf. 1. fig. 3. 



D. 10. A. 10-12. L. lat. 39-40. L. transv. ^. 



Body elongate, its depth being equal to the length of the head, 

 and two-ninths of the total (without caudal). Mouth terminal, 

 obliquely ascending upwards as in Alhurnus. There are two and a 

 half longitudinal scries of scales between the lateral line and ventral 

 fin. A dark band along the side, above the lateral line. (iSteind.) 



Pharyngeal teeth 5 — 5. 



Spain. 



6. Leuciscus arrigonis. 

 Steindachner, Sitzgsher. Ak. Wiss. Wien, 1866, liv. p. 16, pi. 4. fig. 1. 

 D. 10-11. A. 11-13. V. 10. L. lat. 40-52. L. transv. -?. 

 Body longish, its depth being rather less than one-fourth of the 

 total length (without caudal). Mouth inferior, the upper jaw over- 

 lapping the lower. There are four and a half or five longitudinal 

 series of scales between the lateral lino and ventral fin. A blackish 

 band along the side. Pharyngeal teeth 6 . 5. {Steind.) 

 Spain, (llio Jucar; Lake of LTia.) 



7. Leuciscus heckelii. 



Leuciscus heckelii, Nordm. in Demid. Voy. liuss. Merid. iii. p. 491, 

 Poiss. pi. 23. fig. 1. 



D. 13. A. 12-13. L. lat. 43-46. L. transv. 8/6. 



Body rather elevated, its depth being about two-fifths of the total 



length (without caudal). Mouth subinferior, the upper jaw juo- 



jecting beyond the lower There are four and a half longitudinal 



series of scales between the lateral line and ventral fin. Origin of 



