128 
202. 
203. 
204. 
205. 
206. 
207. 
208. 
209. 
210. 
211 
272. 
Zia. 
FISHES. 
Aire—after a subterranean course of two miles. The beck 
at Penyghent is exceedingly small, and after a short half- 
mile course disappears in a similar manner. 
In Malham Tarn there are two varieties of trout, the 
‘silver trout’ and the ‘yellow trout,’ both of which are 
subject to the malformation before spoken of. The yellow 
trout were by Mr. Couch erroneously considered to be 
small examples of the Great Lake Trout (Salmo ferox), 
but on specimens of both forms being submitted to Dr. 
Ginther they were pronounced to be of the same species. 
Salmo argenteus (C & V.). Silvery Salmon. 
Salmo brachypoma Giinth. Short-headed Salmon. 
This species—one of the most easily recognisable of the 
salmonoids—was described by Dr. Gunther from speci- 
mens from the Yorkshire Ouse, and from the Tweed and 
Forth, and is a migratory form. The Ouse specimens in 
the British Museum were presented in 1865 by Mr. 
J. H. Phillips, of the ‘ Yorkshire Salmon Fishery Preserva- 
tion Society, Beadlam Grange, Nawton.’ 
Salmo gallivensis Génxth. Galway Sea-Trout. 
Salmo orcadensis Giénth. Loch-Stennis Trout. 
Salmo ferox /Jard. & Selby. Great Lake-Trout. 
Salmo stomachicus Giéxth. Gillaroo Trout. 
Salmo nigripinnis Giinth. Black-finned Trout. 
Salmo levenensis Walk. Loch-Leven Trout. 
Salmo alpinus Z. Alpine Charr. 
' Salmo killinensis Géinth. Loch-Killin Charr. 
Salmo willughbii ‘Giz. Windermere Charr. 
Salmo perisii Gixth Torgoch. Welsh Charr. 
