LEUCISCINES. 
783 
THE ASP (sw. aspen). 
AS PIUS RAPAX. 
Plate XXXVI, figs. 1 (o*) and 2 (?). 
Scales in the lateral line about 66 (62 — 73). Length of the lower jaw about 1 / 10 (10 or 11 %) of that of the 
body , greater than the least depth of the tail , and at least 7 /i 0 — 82 %) of the length of the base of the anal 
tin. Length of the upper jaw at least 1 / x 2 (O' 3 — S'3 %) of that of the body and greater than either the breadth 
of the interorbital space or the length of the suboperculum, which measurements are about equal to each other. 
Pharyngeal teeth set in two rows (3, 5 — 5, 5), hooked at the tip, with smooth, more or less sharp, and not very 
distinct masticatory surface. 
Fig. 194. Pharyngeal bones and pharyngeal cartilage of Aspius rapax , natural size, a, b, and c as in the preceding figure. 
R. hr. 3; D. 
7—8’ A ' (12)13—14(15) 
; P- 
— - — ; V. -; 
16—17’ 8’ 
C. x + 1 + 17 + 1 + x ; L. lat. (62)66—73; L. tr. — — 1; 
(4)5—7 
Vert. 48 
49. 
Syn. Capito jluviatilis rapax, Gesn., Hist. Anim., lib. IV, Paralip., 
p. 9; Schonev., Ichthyol. Slesv. Holst., p. 30; Marsigl., 
Danab. Pann. Mys., tom. IV, p. 20, tab. VII, fig. 2; Cy- 
prinus magnus crassus argenteus; longitudine ad latitudinem 
quintupla, Art., Ichthyol., Syn. Pise., p. 8. Cyprinus 
maxilla inferiore longiore cum apice elevate, pinna ani ossicu- 
lorum quindecim, Art., ibid., Gen. Pise., p. 6; Syn. Pise., 
p. 14; Descr. Spec. Pise. p. 14; Lin., Fn. Suec., ed. I, 
p. 121. 
Cyprinus Aspius , Lin., Syst. Nat., ed. X, torn. I, p. 325; Bl., 
Fisch. Deutschl., part. I, p. 48, tab. VII; Retz., Fn. Suec. 
Lin., p. 359; Nilss., Prodr. Ichthyol. Scand., p. 28; Cuv., 
Val. ( Leuciseus ), Hist. Nat. Poiss ., tom. XVII, p. 265; 
Nilss. (. Abramis ), Slcand. Fn., Fisk., p. 334; Widegr. (Cy- 
prinus), Landtbr. Akad. Tidskr. 1863, p. 203; Reut., Sundm. 
(Aspius), Finl. Fisk., tab. XIX. 
Cyprinus rapax, Leske, Ichthyol. Lips, spec., p. 56; Pall., 
Zoogr. Ross. Asiat., tom. Ill, p. 311; Agass. (Aspius), 1. c.; 
Kr., Damn. Fislce, vol. Ill, p. 500; Hckl., Kn., Silsswasserf. 
Ostr. Mon., p. 142; Dybowski, Cypr. Livl ., p. 173; Sieb., 
a See Und. Betank. m. Forsl. Fiskeristadga 1883 , p. 154. 
Silsswasserf. Mitteleur., p. 169; Mgrn, Finl. Fiskfn., p. 44, 
Gthr, Cat. Brit, Mus., Fish., vol. VII, p. 310; Coll., Forh. 
Vid. Selsk. Chrnia 1874, Tillregsh., p. 184; 1879, No. 1, 
p. 96; Bncke, Fisch. Fischer., Fischz. O., W. Preuss., p. 
130; Mob., Hcke, Fisch. Osts., p. 120; Lillj., Sv., Norg. 
Fn., Fisk., vol. Ill, p. 261. 
Aspius Linnei, Malm, Gbgs, Boh. Fn., p. 567. 
The Asp is the largest European Cyprinoicl ; and 
though it cannot rival the giants of the family in In- 
dia, where Catla Buchanani, for example, may attain 
a length of at least 18 dm., still it sometimes reaches 
in Sweden, according to several corroborative state- 
ments", a. weight of about 8 or 9 kgm. and a length 
of about 1 m. (9 — 12 dm.). Its ordinary size, as it is 
exposed for sale at Stockholm, is, however, about 4 or 
5 dm., and its weight about 2 or 3 kgm. An Asp of 
5 kgm., which may sometimes be seen, is about 8 dm. 
long. An Asp weighing 1 kgm. measures about 45 
cm. to the end of the lower caudal lobe. 
The body is rather elongated and compressed. In 
ordinary cases the greatest depth is less than 1 / 4 
Scandinavian Fishes. 
99 
