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Part III. — Tvjenty-fifth Annual Report 



apparently the same organisms, but too much decomposed to be 

 satisfactorily identified. 



January, 1907. — The stomachs of fifteen herrings from the Clyde were 

 examined; they comprised small samples from two or three different 

 places. Five sent from Rothesay contained food that appeared to consist 

 entirely of young Euphausiidae, some of which that could be identified, 

 and probably the others also, belonged to Nyctiphanes norvegica. The 

 food observed in other six stomachs consisted of Calanus only, of which 

 there were a considerable quantity. In other three the food consisted 

 of Calanus (chiefly), Sagitta and young Euphausiidae, and one was 

 distended with food consisting chiefly of Nyctiphanes, but some Calanus 

 were also present. 



February, 1907. — The number of stomachs from Clyde herrings 

 examined in February was thirteen. Eight were from two samples sent 

 from Campbeltown, and five from a sample from Rothesay. Four of the 

 stomachs from Campbeltown herrings contained food that consisted 

 entirely of Calanus. One contained a large quantity of Nyctiphanes, 

 while the food observed in the other three consisted of Calanus and 

 Nyctiphanes. The stomachs of the five herrings from Rothesay differed 

 much from those from Campbeltown ; two were empty, two contained a 

 small quantity of red-coloured matter, but nothing that could be distin- 

 guished, while the only thing distinguishable in the other consisted of a 

 few fish scales. 



March, 1907. — The stomachs of eighteen herrings from the Clyde were 

 examined in March; they included eleven from Campbeltown, four from 

 Skipness, and three from Girvan. All the stomachs of the Campbeltown 

 herrings contained food that could be identified. In four the food 

 appeared to consist entirely of Calanus; other organisms may have been 

 present, but the food had become so much decomposed that only the 

 Calanus could be satisfactorily identified. The food in one stomach con- 

 sisted entirely of young Euphausiidae, while the contents of the other six- 

 comprised Calanus and Euphausiidae in varying proportions. In three 

 cases the Euphausiidae present in these stomachs were certainly Nyctiphanes 

 norvegica, and probably all those observed belonged to. the same species. 

 Of the four stomachs from Skipness herrings two were empty; one con- 

 tained a small quantity of food, but it was too much decomposed for 

 identification, while the other which was tolerably well filled contained 

 Euphausiidae and Calanus in a partially digested condition. The con- 

 tents of one of the stomachs of the Girvan herring consisted of Calanus, 

 Pseudocalanus elongatus, young Euphausiidae, and some fish eggs. This 

 stomach was moderately well filled with food, but the other two were empty. 



April, 1907. — The stomachs of a few herrings from Skipness and 

 Machrie Bay (Kilbrennan Sound) were examined — two from the former 

 and three from the latter place. Those from the Skipness herring con- 

 tained so much food as to be somewhat distended with it; one was filled 

 for the most part with Calanus, but three moderately large Nyctiphanes 

 were also present; the other contained Nychtiphanes and Calanus in about 

 equal quantities. On the other hand, the stomachs of the herrings from 

 Machrie Bay, though at first sight apparently containing a moderate 

 amount of food, were found on examination to consist only of some red- 

 coloured stuff that could not be identified, though probably it was part of 

 the remains of some Calanus. 



(3) Loch Broom. 



February 1st and 2nd, 1905. The stomachs of forty-nine herrings 

 captured in Loch Broom, West Ross-shire, were examined in February, 



