ABRAMO-LEUCISCINE HYBRIDS. 
807 
or the Roach. These forms were first discovered in 
Germany, and Heckel, who did not regard them as 
hybrids, bestowed upon them the special generic name 
of Bliccopsis ". Much may be urged against this name 
as co-ordinating hybrids with true species and genera in 
the systematic nomenclature; and Fatio 6 therefore coined 
the compound names Scardo-blicca Erythro-Bjorkna and 
Leucisco-Blicca Butilo-Bjorkna. But the forms have 
been most accurately defined in Bavaria by Siebold and 
Jacket, who have retained the Heckelian generic name. 
BLICCOPSIS ERYTHROPHTHALMOIDES. 
(hybrid between the white bream and THE RUDD.) 
Fig. 200. 
Body deep as in the deepest Rudd, the greatest depth being 34 — 39 % of the length, with the forepart of the 
back convex and covered with scales in the median line. Dorsal fin with 8 C or 9 branched rays , anal with 15 d 
or 16. Distance from the tip of the snout to the dorsal fin more than half the length of the body, and per- 
ceptibly greater than that to the foremost point in the insertion of the ventral fins. At most 10 scales in a 
transverse row above the lateral line. Pharyngeal teeth set in two rows and more or less distinctly pectinated. 
Fig. 200. Bliccopsis erigthrophthalmoides, taken in a Herring-seine off Karlskrona, in May, 1876, by Mr. Lundberg, Inspector of Fisheries. 
Natural size, a, left pharyngeal, seen from above, natural size; b, the same, seen from without, natural size; c, the last tooth 
in the inner row, twice the natural size. 
a Russeggers Reisen, Bd. 2, p. 1032. 
b Faune des Verte'bre's de la Suisse, vol. IV, pp. 376, 387 
c Sometimes 7, according to Fatio. 
d Sometimes 12 — 15, according to Fatio. 
Scandinavian Fishes. 
102 
