THYMALLUS MICliOLEPLS. 359 



The colour of the buck is greenish-brown. The sides and ventral region 

 are a brilliant silver-white^ The greater part of the middle of the sides of the 

 body is marked with grey or black pigment spots, among which, in varying 

 number, are scattered flecks of orange-red. The dorsal fin is yellowish- white, 

 and has its middle part adorned with reddish stripes in the direction of the 

 rays, while a blackish border margins its anterior and superior edges. The 

 pectoral, ventral, and anal fins are orange. Blackish spots extend along the 

 free edge of the caudal, and similar spots are sometimes seen on the dorsal and 

 middle of the anal. The length is from seven to ten inches. 



The swim-bladder is long, thin, and pointed at the ends. 



There are upwards of thirty pyloric appendages. 



This species is described by Steindachner from the mountain streams of 

 Vergoraz, in Dalrnatia. It is distinguished by the small number of dorsal 

 rays, the greater number of rows of scales, and the dentition of the tongue. 



