TRANSACTIONS OF THE SECTIONS. 



6m 



but the coats and sides of the stomach are not more muscular 

 than in the common trout. 



The Whitling and Bull Trout of the Tweed are the young 

 and adult states of the same fish, which is the Salmo Eriox of 

 some authors, and reaches a large size. 



TheLochmaben Vendace, Coregonus maraenula (?). — The lochs 

 in the neighbourhood of Lochmaben are the only known habitat 

 in Scotland for this fish, and the author is not sure that there 

 is any authentic station for it in England or Wales. The 

 stomachs were entirely filled with minute Entomostraea, which 

 certainly at times constitute the greater part of the nourish- 

 ment of this fish. 



JS^ote. — All these fish were shown to M. Agassiz. All the trout 

 he considered as varieties of Salmo Fario ; S. ferox, an ad- 

 dition to the Salmonidce of Europe, and new to him ; the Whit- 

 ling and Bull Trout also new to him, and differing from any of 

 the fish he was acquainted with in the Continental rivers ; Parr, 

 the young of S. Fario ; and the Loehmahen Vendace distinct 

 from the Coregonus marcemda of continental ichthyologists. 



Notice regarding the Coleopterous Insects collected during a 

 Tour in Sutherland. By James Wilson, F.R.S.E. %c. 



[The following extract from tliis memoir will show the views of the author, 

 who is engaged in preparing a report on the geographical distribution of in- 

 sects for the next Meeting of the Association.] 



In the total absence of any information regarding the entomo- 

 logical productions of the North of Scotland, the following ca- 

 talogue of species was drawn up, as a commencement, however 

 defective, of those local lists, which, in a completed state, will 

 tend to illustrate an important department of natural history. 

 The value of such lists is in a great measure independent of 

 their presenting the names of new or rare species : it consists- 

 in their exhibiting a true picture of the prevailing entomologi- 

 cal character of countries. From an assemblage of such picr 

 tures the general distribution of species and the laws by which 

 it is regulated and maintained ai'e eventually to be deduced. 

 No apology need, therefore, be offered for the want of novelty, 

 in the following catalogue : 



COLEOPTEBA. 



Cicindela campestris. Carabus arvensis. 



Cychrus vostratus. cancellatus. 



Carabus catenulatus. violaceus. 



