DAY ON BRITISH AND IRISH SALMONIDi^:. 



57 



FRESHWATER TROUT. 



Sabno fario L., Brown Trout. 



Sahno fario leve7ie?isis Walk., Loch-Leven Trout. 



Sal/no fario — - — (no scientific name has been given to this race), 



Crasspuill Trout. 

 Salmo fario esiuarius Knox, Estuary Trout. 

 Sabno fario orcade?isis Giinth., Loch-Stennis Trout. 

 Salmo fario cornnbiensis Walk., Cornish Trout. 

 Salmo fario ferox Jard. & Selby, Great Lake-Trout. 

 Salmo fario stomacJiicus Giinth., Gillaroo Trout. 

 Salmo fario (no scientific name has been given to this race), 



the Swaledale, or more correctly speaking, the Oxnop, Trout. 



All these forms are described and considered at length in the 

 book. 



In considering the Char, Dr. Day says, ' although Char do not 

 differ so much in colour among themselves as do our Trout, partly 

 owing to their not frequenting salt-water, still, at various ages, their 

 forms are so diversified, and sexual distinctions so considerable, as 

 to have deceived many ichthyologists who have studied these fishes 

 more in museums than in their natural haunts. Fish-culture has, 

 however, proved of great service in eradicating from systematic 

 zoology a large number of species, which must, however, unfor- 

 tunately continue ofr years encumbering the pages of ichthyo- 

 logical literature.' Gunther ('Catalogue of Fishes,' vi ; Study of 

 Fishes, pp. 645-646) admits six species, but the above remarks 

 of our author's make it doubtful if they are even varietal forms, 

 and he only admits one species. He does not, however, explain 

 the ages and sexes of his one species, Sabno alfimis, to which 

 Dr. Giinther's species are referable, which we should much like to 

 know. 



We think w^e have said enough to indicate that this work is 

 one of unusual interest and worth, and if we have failed so to do, 

 the fault is ours, and will be soon removed on an examination 

 of the book itself, which is a most valuable contribution to the 

 bibliography of our fauna. It is nicely got up, liberally illustrated 

 with woodcuts, and last but not least it is embellished with a 

 series of plates drawn by the author, nine of them being beauti- 

 fully and faithfully coloured, thus adding not a Httle to the attrac- 

 tiveness of the book. We can only regret that the genera Osnieriis, 

 Coregonus^ and Ai-geniiiia^ with their few species, are not included in 

 this masterly survey, which is confined to the ' game fishes ' of the 

 family.— W. E. C. 



Feb. 1888. 



