260 



DOUBLE-MARKED SALMON-CARP. 



Prochilodus binotatus. 



PLATE XXIX. 

 Schomh. Dnaci/if/s, No. 65. 



This fish, regarding which we do not possess ex- 

 tended notes, " was sliot with tlie arrow in the 

 Rio Branco. In lengfcli it is thirteen inches and a 

 half, in depth tliree and three-quarters. Teeth were 

 thickly set in each jaw, and the tongue is stated as 

 round and fleshy ; at variance with the generic cha- 

 racters as given previously. The intestines have no 

 appendices, and the air-bag is double." The upper 

 part of the head is coloured dark olive, shading 

 into yellowish, perhaps silvery on the opercula, 

 and to pale pink on the lower part of the head. 

 The back above the lateral line bluish gray, shading 

 into silvery and tinted with greenish on the abdo- 

 men ; and there are two conspicuous round black 

 marks, the one at the commencement of the lateral 

 line behind the gill- cover, the other at the termina- 

 tion of the line at the insertion of the tail. Dorsal 

 fin is bluish green, second dorsal olive ; the pectoral 

 and anal fins are pale greenish grey, tinted with 



