292 Prof, M'lntosh's Xutesfrmn (he 



the liook-like process of tlie dorsal tin extendino; In front of a 

 line from the anterior edf^^e of (he right eye, which was jn.st 

 over (to the left of) tiie ridge. Botli sides were dee|)ly pig- 

 mented and a considerable number of prickles existed on tlie 

 right side. 



In a turbot of 22 inches in lengtli aTul 18 inches across — 

 noticed by Prof. Ewart * — the rigiit eye remained on the right 

 side near the ridge. Both sides of the body were pigmented. 

 The same hook-like malformation of the end of the dorsal iin 

 was present. The intensity of the coloration of the right side 

 would not seem to be greatly altered by the presence of the 

 eye thereon, as in some in which the eye had passed the ridge 

 the colour ap])ears to have been quite as well developed. 



In a finely developed sole, 14 inches in length, procured at 

 Portrush, in Ireland, the under (left) surface had a consj)icuous 

 reddish tinge along the sides (dorsal and ventral) and here 

 and there extending to the middle line, from the presence of 

 numerous red pigment-corpuscles. The only other pigment 

 on the surface was a dark patch at the base of the tail. Tlie 

 right (u]i])er) surface had the normal pigment. 



In a flounder {J'lafessa fesvs) 1\ inches long the dorsal 

 fin terminated in a hook which curved forward so as to toucli 

 a line from the left eye, which was truly dorsal in position — 

 in fact, it occupied the ridge. The right eye was normal. 

 Eoth sides were deeply tinted, no distinction (except a small 

 white belt running torward and backward below the left eye 

 to the extent of | inch) being visible between them. Tlie 

 pri(kl(s on the head, however, were little develoj)ed on the 

 left side, though the rough region above the pectorals was 

 present on both sides. 



A flounder of 8^ inches, in which the dorsal fin is arrested 

 behind the left eye and terminates in a small point or liook. 

 The 1< ft eye is lateral in ]iosition, its lower border being on a 

 level with the ventral surface (left). Its range of vision 

 \\culd thus be extensive on the left side, sweeping from the 

 bottom upwards about | of a circle, especially when its dorsal 

 fin was on the bottom or when swimming. The left side is as 

 deeply pign ented as the right, even prolonged immersion in 

 spirit for eight or nine years only rendering the left side of 

 the head somewhat less dusky. This flounder was remark- 

 ably well nourished for its size, and evidently secured its food 

 readily. The ovaries were far advanced. 



In a dab 8^ inches long, with both eyes on the right side 

 and the dorsal fin running evenly forward on the left side of 



• Second Eeport S. F. B., Appendix, p. 60, pi. xiii. (1884). 



