346 The Scottish Naturalist. 



attenton to, not that I have any faith that it may prove 

 to be a distinct species, if such really exists amongst the 

 Salmonidae. As he had never seen this trout above the tidal 

 portions of rivers, he called it the Estuary trout (Salmo estuarius). 

 He had examined numerous examples, that were taken by a 

 net in the brackish water at the mouth of the Tyne, East Lo- 

 thian ; and the mouth of the Nith, Dumfriesshire. It had 

 likewise been caught in the estuary of the Forth, the Esk, 

 Yorkshire, and in the sea at the Kyles of Bute. He gives the 

 measurements in a tabulated form of an example of the Estuary, 

 the Tweed, and the Lochleven trout. The Estuary trout holds 

 an intermediate place between the two, being stronger, with 

 stouter maxillae than the Leven trout ; but weaker, with the head 

 and jaws proportionably smaller, than the river trout. The 

 Kstuary trout is in general size about a foot in length. Knox 

 stated, however, that he had seen one that weighed 4.1bs. In 

 general colouring it resembles the common river trout, with 

 bright metallic tints, scales minute, adherent, the flesh or mus- 

 cles pink-coloured, sometimes bright red, numerous red spots 

 above and below the lateral line : and it tastes as well as the 

 best Lochleven trout. 



University, St. Andrews, August, 1874. 



NOTES ON THE ENTOMOLOaY OF SHETLAND. 



THE following account of doings in pursuit of Coleoptera 

 during July last (which month we spent in Shetland, a 

 locality of whose beetle inhabitants there is little record), may 

 not be without interest. There are probably few spots in Great 

 Britain where the tourist can pass a more enjoyable time, espe- 

 cially if the weather be as propitious as we found it. The blue 

 sky, and the almost bluer sea, studded with innumerable islands, 

 furnish scenery that can scarcely be surpassed ; and it is certainly 

 not everywhere that one can meet with bold precipices 1500 

 feet high. During Our stay we visited the greater part of the 

 islands, fixing our headquarters at Lerwick. Thence we made 

 two tours — the first south to Dunrossness and Fitful Head (about 

 22 miles) — the second north to Roeness Hill (the highest 

 summit of Shetland), and thence through the Yell to Unst 

 (about 50 miles), visiting other smaller islands en route. As we 



