1. SALMO. 



143 



nicates with the north-eastern part of Lake Baikal ; by Pallas 

 erroneously identified with S. alpinus. 



B. 12. D. 14. A. 13. L. lat. 225. 



In general form similar to S.perisii, the body being rather elon- 

 gate; head smallish, its length being somewhat less than one -fifth 

 of the length (to the end of the middle caudal rays) in a male 

 specimen 18 inches long. ' Snout somewhat produced, subconical, 

 much longer than the eye, the diameter of which is one-half of the 

 width of the interorbital space. Maxillary slender and rather feeble, 

 extending a little behind the vertical from the hind margin of the 

 eye. Teeth of moderate strength. Interorbital space flattish. Prae- 

 operculum crescent-shaped, without lower limb. Pectoral shorter 

 than one-half of the distance between its root and that of the ventral. 

 Dorsal a little higher than long. Caudal deeply forked. Brown 

 above, red below, red-spotted on the sides ; ventral and anal fins 

 red, with white margins. 



This species is said to attain to a length of two feet. 



The characters given above are taken from a specimen from 

 PaUas's collection in the Berlin Museimi ; it is the skin of a male 

 fish, 18 inches long, in a tolerably good state of preservation. 



16. Salmo callaris. 



Salmo callaris, Pall. Zooffr. Ross.- As. ill. p. 352 ; Cuv. 8f Vol. xxi. 

 p. 260. 



The specimen preserved in the Berlin Museum as one of the types 

 of Pallas's S. caUarts is a flat skin of a female fish, 18^ inches long, 



