110 BOARD OF AGRICULTURE. 



Sub-class Teleostei. SALMONOiDiE. 



ness, although it has the reputation of being slow and sluggish. 

 The female is more perfect in its proportions than the male, not 

 having that gibbons appearance at the nape, where the outlines of 

 the head pass into those of the back, and besides, its general con- 

 tour is more delicate. 



A rich pearly lustre covers the ventral regions, deepening into 

 russet towards the lateral line, above which the color appears of a 

 deep mottled gray, still deepening into blue as it approaches the 

 dorsal summit. The same pearly hues, blended and intermingled 

 with gray, are observed upon the opercula. Spots and markings 

 of a light sienna color appear on the sides ; these spots are circu- 

 lar without being ocellate, and appear indistinct and graj'ish upon 

 the dorsal and upon the commencement of the caudal. All these 

 colors vary according to the seasons and local influences, being 

 brighter at the spawning period than at other times. 



Its proportions are quite harmonious. The following arc the 

 measurements of a small specimen : 



Entire length, 



Greatest depth. 



Head, 



Pectoral, 



Ventral, 



Anal, 



Caudal, 



Dorsal, 



Br. 12 ; P. 12-13 ; V. 9 ; A. 11-12 ; D. 13 ; C. 19. 

 Caecal appendages, 113 ; Ver. 65. 



Scales are small and elliptical. They decrease in size as they 

 approach the thoracic arch. There are 53 in a vertical row anterior 

 to the ventrals, of which 24 are above the lateral line number 123 — 

 are long, narrow, with a deep grove passing through them, and 

 strongly attached. They measure on specimens of 18 inches, in 

 length 1-16 in their short diameter, and in their long 3-16. 



The lateral line arises from the height of the upper third of the 

 operculum, curves slightly downwards and proceeds with a slight 

 inflection to its caudal insertion. The pectorals are not propor- 

 tionally so long as those of the Siscowel, and they ai'isemuch nearer 

 the branchiostegii, leaving a greater distance between their extrem- 

 ities and the plane of the commencement of the dorsal. The ven- 



