ICHTHYOLOGY MALACOPTERYGII. 1 1 1 



on the 30th July 3^ pounds ; a Grilse of four pounds, 

 marked in January, 1842, was retaken in July, as Salmon, 

 weighing nine pounds. (Ann. Nat. Hist. xi. p. 157.) 



John Shaw has also again made observations on the 

 growth of the Salmon Trout. On the 1st Nov. 1839, the 

 ova were fertilized, the young quitted the egg in 75 days ; 

 in two years they attained a size of seven inches, and became 

 " Smolts." He then examined " Srnolts" in the river. 

 They returned in July and August as " Herrings" (Salmo 

 albus, Flem.) ; having increased their weight by seven or eight 

 ounces. They afterwards again proceeded to the sea, and 

 returned in May and June with an average weight of 1^ 

 pounds. After the third migration to the sea they re- 

 appeared in the following summer with a weight of four 

 pounds. After the fourth migration, they weighed in the 

 following summer six pounds, that is, in the sixth summer 

 of their life. (Ann. Nat. Hist, xi, p. 384.) 



John Blackwall also communicates remarks on the 

 Salmon which he had observed in the river Conway. (1) 

 The lobes of milt are already much developed in the 

 young males, which present the characters of the " Parr/' 

 whilst the lobes of roe in the female are still far behind 

 hand. (2) These males shed their milt in the ensuing- 

 winter months. (3) The Salmon- Smolts are found to have 

 shed their milt before their migration to the sea, although 

 the roe in the females is at that time very small. (4) 

 The " Smolt" acquires the aspect of a " Parr" when the 

 silvery scales are carefully removed. The author finds fault 

 with Young for not regarding the bulk in his weighings, 

 because the weight depends very much upon the " condition" 

 of the Fish. It is evident that such a remarkable increase 

 in weight in so short a time as that stated by Young, must 

 depend upon a good supply of food. (Ann. Nat. Hist, xi, 

 p. 409.) 



Griffith figures Salmo orientalis (vid. these Archiv. 1843, II, p. 113) ; 

 he discovered it at an altitude of 11,000 feet, iu the streams which fall into 

 the river Bameaii. (M'Clellaud, Calcutta Journ. iii, p. 283.) 



