66 BRITISH FRESHWATER FISHES 



40 feet into a dark pool below ; from the cave pool 

 to the sea is a distance of only about 30 yards, but 

 in 1876 Mr. Neil Campbell caught some Trout in 

 this stretch and transferred them to the water above 

 the falls, where none had previously existed. In 

 1882 Mr. Harvie Brown caught quite a number of 

 these fish, which were remarkable for a line of large 

 irregular blotches of bright crimson along the middle 

 of the side, sometimes confluent to form an undulat- 

 ing band, whereas the ancestral form below the falls 

 was said to be very ordinary looking. 



Mr. Harvie Brown has described the Trout of 

 several Sutherlandshire lochs ; in Loch Crassapuil, 

 which has a sandy bottom, they grow to a large size, 

 and are silvery with a white belly, and the back and 

 sides greenish with small dark spots. In Loch-na- 

 Sgeirach, or " The Loch of the Parr- marked Trout," 

 a catch of twenty-three trout weighed 9 lbs. ; these 

 had two rows of red spots on each side, but were 

 especially remarkable for retaining the parr-marks, 

 which were very distinct. 



In many of the Irish lakes the fishermen distin- 

 guish with the name " Gillaroo " a Trout which 

 differs somewhat in habits and appearance from the 

 ordinary. The most notable things about the 

 Gillaroo are that he is always well spotted with red, 

 hence his name, which is derived from the old Irish 

 giolla, fellow, and ruadJi^ red, and that he subsists 

 largely on shellfish and has a remarkably hard and 

 thick-walled stomach in consequence. The fish 

 called " Gillaroo " in various lakes seem to agree in 

 this, but differ somewhat in other characters, such as 

 form, size, and value as food, according to the 

 locality. 



