wiiiTK ri;ea:m. 



803 



elsewhere, between the ]')reains and tlie Lencisoines. 

 Instances of a Itoaeli or a Rmhl with nuii'e thaTi 14 

 branclied rays in th(> anal fin, of a Hoacli with pha- 

 ryngeal teeth set in two rows, or of a White Bream 

 with less than IS hraiicjied rays in the anal hn, have 

 been explained on the assumption that these (ornis are 

 hybrids between the White Bream and tlii' IJoach or 



the liudd. This explanation is indeed eorrect to all 

 appearanee; but its demonstration, which can be at- 

 tained only by experimental methods, has still to be 

 made by pisciculturists. These remarks also apply to 

 the assumed hybrid between the Bream and the Roach. 

 The last form is usually most like a 15reani, Init has 

 oidy l.J — IS branched rays in the anal tin. 



THE WHITE BREAM OR BREAMFLAT (sw. ujorkxan). 



AIUiAMIS KLICCA. 



Plate XXXy, tig. 2. 



Scales ill the hiteml line ahoiit 4(> {4'> — 50). Anal fin irifh :21 — ^^.V hranched nii/K. Iletircen tlie lateral line 



and the ihirfnil fin .V or 10, in exceptional cases 11, rows of seales. I'ectoral and ventral fins red or ijeUoic at 



tlie base. Fharijnfieal teeth set in two rows: {1):2(H), 5(6) — 5Xi)^{3). 



Fig. 199. Pharyngeal bones and pliaryngeal cartilage of Abramis hlircn, natural size: n. h, and <; as in the jireceding figure. 



S. h: 3: D. 



gi 21'— 23(24) 



C. ,);+ 1 + 17 + 1 +.f; L. kit. (43)45— .50; 

 Vert. 38- 40. 



14—16(17) 



9—10(11) 



V. -; 



L. tr. 



Syn. Ballerus, Rondel., De pise, lacustr., p. 155. Blicea, Gesn., 

 Hist. Anim., lib. IV (Francof. 1620), p. 24 (+ (?) Plestt/a, 

 p. 25, ex Belon.). Vyprinus quincuncialis, pinna ani ossi- 

 oulorum viginti quinque, Art., Gen., p. 3; Syn., p. 13; 

 Spec, p. 20. Cypvimis pinnse ani radiis viginti quinque, 

 Lin., Fn. Suec, ed. I, p. 124 (syn. nee descr.) = Cyprinus 

 Bjoerkna, Syst. \at., ed. X, torn. I, p. 326 (syn. nee. descr.). 



Cyprinus Plestya, Leske, Ichthyol. Lips. Spec, p. (>'^. 



Cyprinus Blicea, Bl., Fische Deutschl., part. I, p. 65, tab. X; 

 Ekstk. (subg. Abramis), Vet.-Akad. Handl. 1830, p. 179; 

 NiLSS., Prodr. Ichthyol. Seand., p. 31; Fb., Ekstr., v. Wr., 

 Skand. Fisk., ed. 1, p. 64, tab. 12; Kr. (Abramis), Damn. 

 Fisk., vol. m, p. 389; Sundev. (Cyprinus), Stockh. L. Hush. 

 Sallsk. Handl. 1855, p. 82; Gthr. (Abramis subg. Blicea), 

 Cat. Brit. Mus., Fish., vol. VII, p. 306 ; Feddersen, Naturh. 

 Tidskr. Kbhvn, ser. 3, vol. XII, p. 86; Day, Fish. Gl. Brit., 

 Ircl., vol. II, p. 196, tab. CXXXVI; M6b., Hcke, Fisch. 

 Osts., p. 118; LiLLJ., Sv., Xory. Fn., Fisk., vol. Ill, p. 318. 



Cypriiius Laskyr, GCldenst. apud Pall., Zoogr. Ross. Asiat., 

 torn. Ill, p. 326; — vide Nordm., Voy. Russ. Mer. (Demidoff), 



" Sometimes 24. 



* 7 — 9, according to Krover. 



' Sometimes 19, according to Fatio. 



torn. Ill, p. 504, tab. 22, tig. 1; — Hckl., Kn. (Blicea), 



6'usswasser/. Ostr. Man., p. 123. 

 Abramis micropteryx et Abr. erythropterus, Agass., Mem. Soc 



Sc not. Nexich., vol. I, p. 39 (ef. Cnv., Val., Hist. Nat. 



Poiss., vol. XVII, pp. 44 et 58). 

 Abramis Bjoerkna, NiLSS., Skand. Fn., Fisk., p. 328; Sieb. 



(Blicea), Silsswasserf. Mitteleur.. p. 138; ilGRN, Finl. Fiskjn., 



disp. Helsiugf. 1863, p. 42; Blanch. (Abramis, subg. Blicea), 



Poi.^s. eaux douces Fr., p. 359; Mal.m (Abramis), Gbgs, Boh. 



Fn., p. 565; MoR., Hist. Nat. Poiss. Fr., torn. Ill, p. 398; 



Bncke (lilicca), Fisch.. Fischer., Fische. 0., W. Preuss., 



p. 123; Fat., Fn. Vert. Suisse, vol. IV, p. 358; Mela 



(Abramis), Vert. Fenii., p. 333, tab. X; Reut., Sundm., 



Fi:d. Fisk., tab. IV. 

 Blicea argyroleuea, Hckl. Kn., 1. c, p. 120; Dveowski, Cypr. 



Lid., p. 202. 



Obs. .-Vrteim described this species with fair accuracy in De- 

 script. Spec /'(.«(■. (p. 20, Xo. 9), under its Upland name of Bjnrkna, 

 and also included it in Synonymia Piscium (p. 13, No. 27) and Gen. 

 Pise. (p. 3, No. 3). But he failed to perceive that it was the spe- 

 cies called Ballerus asid Blicea by former ichthyologists, referring 

 these names instead to his own Blicea (Descr. Pise., No. 11), to 

 which Linn.eus, on his authority applied the specific name of Ballerus, 

 which it has since retained. Artedi's Bjorkna remained unknown to 

 I.in'N.el'S, though the name is given both in the Fauna Sueciea and 



