gillaroon.

1773 D. Barrington Let. in Philos. Trans. (Royal Soc.) (1774) 64 116 You will find upon the table a Gillaroo trout, as it is termed in Ireland.

1773 D. Barrington Let. in Philos. Trans. (Royal Soc.) (1774) 64 118 The poke of the Gillaroo seems to perform the office of a gizzard.

1776 R. Twiss Tour Ireland 111 A species of trout, called gilderoy, are caught here [i.e. in the river Shannon], and also in the neighbouring lakes.

1833 J. Rennie Alphabet Sci. Angling 39 Trouts, which are called gillaroo, are found in Loch Melvin, near Ballyshannon, and Loch Con, near Ballina..and differ little from the common trout, except in being of a bright golden yellow on the belly and fins, with more red spots on the sides, and somewhat broader and thicker in form.

1859 New Sporting Mag. July 32 Loch Mulach Corrie... This is the only lake in Scotland known to produce the gillaroo, or gizzard trout.

1872 F. Francis Bk. Angling (ed. 3) vii. 247 I was having great sport with the gillaroos.

?1890 T. O'Rorke Hist. Sligo I. i. 21 It [sc. Lough Arrow] is famous for its gilleroo trout, which brings fishermen from all quarters in the month of May.

a1933 J. A. Thomson Biol. for Everyman (1934) I. xvii. 440 The angler is not usually impressed by the zoologist's declaration that there is only one species of trout in Britain, namely Salmo trutta. What, he says, of..the phinock in the east and the sewen in the west; what of the trout of Loch Leven and the Irish gillaroo?

1977 D. A. Ratcliffe et al. Nature Conservation Rev. II. 204/1 The loch [sc. Loch Mhaolach-coire, Sutherland, Scotland] contains a population of fast-growing brown trout which are said to be mollusc feeders and are known locally as Gillaroo trout.

2011 B. Jonsson & N. Jonsson Ecol. Atlantic Salmon & Brown Trout ii. 44 Current evidence indicates that the gillaroo and sonaghen sympatric types diverged prior to the colonization of Lough Melvin.