56. Licrcisrus. 229 



fin opposite to the middle of the root of the ventral. There are 

 three longitudinal series of scales between the lateral line and 

 ventral tin. Sides shining silvery, each scale dark at the base. 

 Pharyngeal teeth hooked, slightly denticulated, 5 . 2 — 2 . 5. 

 Dalniatia. 



a-h. Half-grown and young, lliver Narenta. From the Milan 

 Museum. 



22. Leuciscus illyricus. 



Squalius illyricus, Ileckcl ily Kner, Siisswa^serf. p. 195. fig. 108. 



D. 11. A. 12. L. lat. 49-54. L. transv. ^^. 



Body oblong, its depth being nearly one-fourth of the total length 

 (without caudal). Eye small. Mouth of moderate width ; upper 

 jaw overlapping the lower. Pins short and low, the dorsal and anal 

 not being higher than long ; origin of the dorsal opposite the hind 

 part of the root of the ventrals. Scales with numerous radiating 

 strife. Silvery; margins of the scales blackish. (Heck.) 



Eiver Isonzo, Dalmatia. 



? a-c. Young. Sign. From the Milan Museum as Leucisms {Ili/ricus. 



23. Leuciscus spurius. 



Squalius spurius, Ilcchel, in Mnssegf/er's Reisen, i. p. 1081, and ii. 3. 

 p. 227, tab. 16. fig. 3. 



D. 11. A. 13. L. lat. 50. L. transv. 10/?. 



The height of the body is about two-ninths of the total length 

 (without caudal). The diameter of the eye is rather more than 

 one-half of the Avidth of the interorbital space, and two-ninths of 

 the length of the head. Mouth of moderate width, not extending 

 to the vertical from the front margin of the eye, with the jaws even 

 in front. The oriijhi of the anal Jtn is beJow the last dorsal ra;/. 

 Coloration uniform. (Heck.) 



Aleppo. Five inches long. 



24. Leuciscus idus. 



Der Gangling, Aland, or Nerfiiug. Id (Sweden). 



Capito fiuviatilis (Jeses), Gestier, Paral. C. p. 9 ; Hist. Jnim. p. 12GG ; 



Aldrovaml.-p.QO?^; SchuvncJfeld, Theriotr.^. 423; Winiif/hbi/,i^. 256; 



3TarsH. Danub. Pan.-Mijs. p. 53, tab. 18. fig. 1. 

 C_\'prinufi, sp., Art^-c/i, (hn. p. 5. no. 14 ; Spec. p. 6. no. I ; Synon. p. 14. 



no. .'50, and p. 7. no. 11 ; Clrnmn: Zoophyl. no. 346. 

 l^eucisciis, no. 13, Klein, Pise. Miss. v. p. 68. 

 Cyprinus idus, L. Syst. Nat. p. 529; Pallas, Zoogr. Ross.-As. p. .".]6; 



Ekstriim, Fischc v. MUrhii, p. 5, tab. 1 ; Fries Sf Ehstrlim, Sl;and. 



Fisk. p. 59, tab. 11; Grwiuv. Syst. ed. Gray, p. 180. 

 jeses, L. Si/sf. Xat. i. p. 5:!0 ; Ploc/i, Fisr/w BiiifscJil. i. p. 45, 



taf.'O; 3Ici(liiiyrr, fig. 42; Prty, i,i Okeii's Isi.% 18;52. p. 71!>. 



idboi-us, (r'Z. Syst. Xat. i. p. 'y2'.)) Mcidinyer, fig. 41. 



microlepidotus, Fkstrihii, Fischc c. Miirko, p. 18, tab. 2. 



Leuciscus idus, Selys-Lanych. Fatine llclye, p. 209 ; YarrcU, Brit. Fish. 



