J_OCH /i\JVE, 



Order IV. ■ 

 PH1S08T0MJ. 



Family 

 SALMONID^. 



Sub-generic group — Salmones. 



^ILLAROO 



ROUT. 



{Sa//fi I stomachicus!) 



The Gillaroo, 



Salmo stomach 



lais, 



Barringtox, rhilosoph. Trans. 1774, vol. Ixiv. p. 116; Watson, Ibid, p. 121; 



Hunter, Ibid, p. 310; Owen, Cat. Phys. Ser. Coll. Surg. i. p. 141; Anat. 



of Vertebrates i. p. 418; Thompson, Nat. Hist. Ireland iv. p. 154-156; 



Couch, Fish. Brit. Isl. iv. p. 240, pi. 249. 

 GCnthek's Cat. vi. p. 95. 



rFlHE Gillaroo Trout is an extremely interesting species of the non- migratory Salmonidce, 

 ^ and beyond all doubt is distinct from the Common Brown Trout, or Sab7io fario, in some 

 important particulars. This fish occurs in some of the Irish lakes, as in Lough Neagh, Lough 

 Melvin, Lough Corrib, and Lough Mask, also in the Shannon and the Galway lakes, according 

 to the testimony of Thompson in his work on the Natural History of Ireland. Outside of the 

 Green Island I believe there is no record of its occurrence. I believe the first notice of this 

 Trout occurs in the Philosophical Tran^acfiou^ for 1774. 



The thick muscular stomach — on which account Giinther has very appropriately bestowed 

 the specific name of doniachicns upon this fi.sh — has been commented upon by that eminent 



