314 



CYPRINID.E. 



C. carassius, from Bloch, pi. 11, is here supplied as a 

 vignette. The fin-rays are 



D. 21 : P. 13 : V. 9 : A. 10 : C. 21. Vertebrae 30. 



The length of the head is to the depth of the body as one to 

 two, and to the whole of head, body, and tail, as one to 

 five ; the depth of the body compared to the whole length, 

 as two to five : the tail nearly square at the end. 



Several authors have wholly omitted the gibelto in their 

 systematic works ; others have considered it as a distinct 

 species ; and some have supposed it only a variety of caras- 

 stus. The most obvious points of distinction between these 

 two fishes are, in C. gibelio, depth of body compared to the 

 whole length as one to three ; depth of body not equal to 

 twice the length of the head ; tail forked. In C. carassius, 

 depth of body compared to the whole length as two to five ; 

 depth of body equal to twice the length of the head ; tail 

 nearly square. The length of the head, compared to the 

 whole length of the fish, is the same in both, viz. as one to 

 five. Dr. Turton, in his British Fauna, has described the 

 carassius, p. 108, sp. 119. Mr. Pennant and Dr. Fleming 

 have described the gibelio. 



