1884.] HYBRIDS AMONG THE SALMONID.B. 39 



On July 20th, 1883, I removed the following four from box No. 

 116:— 



Average 1-8 9 10 



In some of these specimens the cross bars were much more broken 

 up on one side of a fish than they were on the opposite ; one had 

 9 wide ones, another had 6 to opposite end of dorsal fin, after which 

 they were broken up. All had the light anterior edge to the first 

 dorsal fin. None were deformed. 



On November 29th, 1883, the following two fish were taken from 



the tank : — 



No. 1. No. 2. 



Length of fish 3*0 inches. 2*8 inches. 



„ head 0*6 „ 0*6 ,, 



„ caudal fin . . 0'5 „ 0*45 „ 



Height of body 0-5 „ 0-5 



Specimen No. 1. D. 14 (■&). P. 14. V. 9. A. 11(f). C. 19. 

 L. 1. 136. 



Colours. This fish had about 13 bars or finger-marks along one 

 side and 1 1 along the other, but somewhat irregularly placed, most 

 extending to below the lateral line, while they were of varying widths, 

 with generally aft intermediate row above and another below. 

 Numerous light spots over the body and head running into irregular 

 bands and rings, especially near the back. Dorsal fin darkest in its 

 lowest half, and with some light spots, the other fins unspotted. 

 The maxilla reaches to beneath the posterior third of the eye. 28 

 rows of scales between the adipose dorsal fin and the lateral line. 



Specimen No. 2. D. 13 (f). P. 14. V. 8. A. 1 1 (§). C. 19. 

 L. 1. 124. 



Colours. This fish had from 11 to 12 bars or finger-marks along 

 either side of the body, but they were much shorter and more 

 irregular in shape and size than in the last, while below the lateral 

 line it had fewer and smaller intermediate blotches. The marks also 

 along the back were more irregular. Teeth along the head of the 

 vomer, none along the body of the bone. 20 rows of scales between 

 the adipose dorsal fin and the lateral line. 



The following formula I have fouud existing, in some specimens 

 of Scotch and American Charr : — 



Rows from adipose dorsal 

 Dorsal fin. L. 1. to lateral line. 



Scotch D. 12-14. 125-145. 18-28. 



American.. D. 12-13. 122-140. 21-26. 



Hybrids . . D. 13-14. 124-136. 20-28. 



