AMATHILLA SABINI. 365 



in the herring nets at Bray on the coast of Ireland ; 

 they have been sent to us by Mr. Webster from 

 Tenby and Falmouth : we have taken them on the 

 coast of South Wales ; and Mr. Loughrin has sent them 

 us from Polperro. We have, however, failed to detect 

 them among a large number of individuals found at 

 Plymouth. Rathke, Liljeborg, and Bruzelius have ob- 

 tained them on the eastern shores of Scandinavia. 



A. Sabini was originally brought from the Arctic seas 

 by General Sabine, the President of the Royal Society, 

 after whom it was named. The specimens from that 

 locality are more than an inch long, nor are many of 

 those that have been sent to us from the Moray Frith, 

 Berwick Bay, and the coast of Northumberland much 

 smaller. 



In colour the smaller animals resemble some of the 

 freshest which we have seen of A. Sabini. 



It is remarkable that the size of the individual animal 

 decreases in regular proportion as it progresses south- 

 wards. In the Shetland and in the Moray Frith it is 

 almost as large as in the arctic regions ; at the Menai 

 straits it is scarcely half as large, and on the southern 

 shore of England it reaches its minimum, and as far as 

 we have ascertained, it extends no further southwards. 

 The specimen referred to by Mr. A. White, in the 

 British Museum, from the " Isle of Wight?" is, however, 

 nearly as large as some of the northern specimens. 



