422 Survey of Fishmg-Grotmds, West Coast of Ireland, 1890—1891. 



examples are four in number, two males and two females, all adult, and with 

 reproductive organs fully matured. They were taken in Killybegs Harbour, on 

 the 23rd June, 1890, and, altliough the same ground was carefully worked over 

 the following year, no further examples could be met with. The largest, a male, 

 considerably exceeds the greatest measurement given by Collett or by Day, and 

 appears to be of unusual size. It measures 55 mm. or 2-^^ inches. 



The species is known from several localities in Norway ; along the Western 

 coast of Continental Eurojje ; and from the Mediterranean and Black Sea, in the 

 British Isles from Solway Firth, Fritli of Forth, Aberdeen, Weymouth, south and 

 south-west coast, and Bristol Channel. The four Survey examples are the only ones 

 recorded from Ireland. 



Genus Crystallogobius, Gill. 

 Crystallogobius Nilssonii, Diiben and Koren. (Littoral.) 



Gobiosoma Nilssonii, 

 Crystallogohius Nilssonii, 



Gobius Nilssonii, .... Duben and Koren, " Kgl. Vit. Akad. Forhandl., 



Stockh.," 1844, p. 63. 

 GuNTHER, ''Cat. Fish. Brit. Mus.," iii., p. 86. 

 Gill, " Proc. Acad. Nat. Sci. Phil.," 1863, p. 269. 

 Collett, " Proc. Zool. Soc. Lond.," 1878, p. 331. 

 Day, "Fish. Gt. Brit," i., p. 172. 

 Holt, "Sci. Proc. Roy. Dub. Soc," vii., pp. 121, 



218, 432. 

 DiJBEN and Koren, " Ofver. Vet. Akad. Handl.," 



1845, i. p. 111. 



The species has been well described by Collett (loc. cit.). 



Like the last, it has received such ample attention at the hands of Collett 

 that reference to it, except as regards the distribution, is unnecessary. Previous 

 to the Survey we believe that only two specimens had been recognised from 

 British waters, viz. one taken by Thomas Edwards in a rock pool at Banff,* in 

 1868, and another recorded in the Naturalists' column of the Field probably by 

 Dr. Day. 



During the cruise of the " Fingal " a great number were taken in Ballinskel- 

 ligs Bay, while others were found in the stomachs of larger fish in Galway Bay. 

 In the following year the use of suitable nets demonstrated that the species 

 occurred in abundance along practically the whole of the western coast, at depths 

 from 10 to 41 fathoms, the additional localities being the Kenmare Riverj, 



* Smiles, "Life of a Scotch Naturalist," pp. 375 to 427. 



t It should be remembered that this so-called river is really an arm of the sea, and not an estuary 



