of the Fishery Board for Scotland. 505 



List of Species from Three-Spined Sticklebacks. 



Ceustacea. 



Other Things. 



Mysidie fcen. et sp. ?) 

 OiQjria uphthalmica (Jurine). 

 Oyclops viridis (Jurine). 



,, 'Olhidus {Jmiwc). 



,, serridatus, Fischer. 



,, fimbriatus, Fischer. 

 Ectinosorna sp. 



Canthocamptus staphylinus (Jurine). 

 „ mimitus, Claus. 



,, crasmis, G. O. Sars. 



,, zschokkei. 



Stenhelia sp. 

 Dact\/lopus sp. 



Harpadims (?) chelifer (O. F. Miiller). 

 Bosviina longirostris (O. F. Miiller). 

 Alona quadrangularis (O. F. Miiller). 

 Harporhyncus falcatus, G. O. Sars. 

 Chydorus sphaerkus, O. F. Miiller. 



,, (?) ccelatus, Schoedler. 



,, barbahis (G. S. Brady). 

 Balanus (cypris stage). 



Small flat fish (re- 

 mains). 

 Insect larvie. 



FiFTEEN-spiNBD STICKLEBACK. Gastvcea spinuchia (L.). 



Five Fifteen-spined Sticklebacks were examined, but their stomachs 

 contained very little food that could be identified. In the stomach of 

 one from the Bay of Nigg, 12f^ centimetres in length, a few partially 

 digested Amphipods, too imperfect to be determined, were found ; and as 

 for the other four, which were from Annan (Solway Firth), the stomach 

 of one was empty, the stomach of another contained Crustacean remains 

 which could not be distinguished; a partially digested Isopod {Idothea 

 hcdtica) was obtained in the third, while the food contained in the fourth 

 comprised Idothea sp. (probably /. baltica), Gammarus locusta, and Jara 

 sp. The lengths of the Annan specimens ranged from lOi to 14-j^ 

 centimetres. 



CoD-FisH. Gadus callarius, L. 



The stomachs of the Cod-fishes referred to here have been examined at 

 different times, and they have been obtained at different places, including 

 the Firth of Forth, Aberdeen Bay, the Bay of Nigg near Aberdeen, the 

 Moray Firth, and the estuary of the Annan (Solway Firth). One or two 

 of the samples consisted of very small fishes, and these are considered 

 separately. 



A sample of eighteen collected at Annan on June 26th, 1900, ranged 

 in length from 5 to 8 centimetres ; the stomachs of all these contained 

 food, the principal part of which consisted of Schizopods, and the speci- 

 mens that were sufficiently perfect for identification belonged chiefly to 

 Neomyds vidgaris (J. V. Thomp.), but a few of them appeared to be the 

 common Praunus (Mysis) fe.cuostit!. Small specimens of Crangon vidgaris 

 were observed in two of the stomachs, and Gammarus locusta was 

 obtained in four ; one or two other Amphipods such as Bathyporeia sp. 

 and Corophiujn grossipes were also noticed. Eurytemora (1) velo.c was 



