422 Dr. W. C. M'Intosh on the 



Fam. Clupeidae. 

 Group Clupeina. 

 Genus Clupea (Artedi), Cuv. 

 Clupea harengus, L. ; Gthr. op. cit. vii. p. 415. 

 Abundant. 



Clupea sprattus, L. ; Gthr. op. cit. vii. p. 419. 

 Common. 



Clupea alosa, L. ; Gthr. op. cit. vii. p. 433. 



Not uncommon. In the stomach of a large specimen caught 

 in the Tay were Confervce, Desmids, and a quantity of vege- 

 table debris. 



Fam. Murzenidae. 



Subfamily Mvrmnidje Platyschistje. 



Group Anovillina. 



Genus Anguilla (Thunberg), Cuv. Regne Anim. 



Anguilla vulgaris, Turt. ; Gthr. op. cit. viii. p. 28. 



Abundant in the streams joining the sea, and occasionally 

 between tide-marks ; but the latter occurrence is rare in con- 

 trast with the western and southern shores. 



Anguilla latirostris, Risso ; Gthr. op. cit. viii. p. 32. 



Not uncommon in similar localities. A curious instance of 

 the fatal effects of the voracity of this fish was found in the 

 Swilken burn. A specimen about 20 inches long had seized 

 the head of another not much shorter than itself, and attempted 

 to swallow it. In its struggles the victim's tail also entered 

 the mouth of the larger, and passed out at the left gill-slit, so 

 that several inches were free. The body of the victim thus 

 formed a large loop which could not be swallowed, while the 

 impaction of the head and tail, and the direction of the teeth 

 of the large specimen, prevented the ejection of the prey. 

 The marauder became exhausted, and was captured at the 

 edge of the stream at the sands. 



Genus Conger, Cuv. 

 Conger vulgaris, Cuv. ; Gthr. op. cit. viii. p. 38. 

 Abundant in deep water. 



