288 HISTORY OF BRITISH ZOOPHYTES. 



a snake without the lower jaw, — in the phace whereof is the 

 entrance into the celL" {Ellis.) Dr. Johnston states that 

 it is of a pale pink_, or flesh-colour, or white. It is rare in 

 Scotland ; and the specimens we have seen were white, and 

 so were all that we have seen from England ; but they may 

 have been coloured in a fresh state. It is smooth and 

 glossy, but the snake-like tube is marked all along by nu- 

 merous annulations of a more opake aspect. Mrs. Gatty 

 was the first to point these out to me ; but they are very 

 conspicuous in a figure of it with which I have been fa- 

 voured by Mr. Busk, of Greenwich, whose forthcoming 

 work on the Polj/zoa is eagerly looked for. 



2. Anguinaria truncata, mihi. (Plate XVI. fig. 57.) 

 Hab. Lamlash Bay, Arran, on Laminar ia saccJtarina. 

 I am glad to state that this is a new species added to our 

 Fauna. AVhen I had the pleasure of a da/s di'cdging in 

 Lamlash Bay, in September, along with Professor Balfour 

 of Glasgow, and other friends, I observed that a large frond 

 of Laminana saccharina, which the dredge brought up, 

 was roughened with little bristles, and, tearing ofi" about a 

 foot of the frond, I deposited it in my vasculum for more 

 leisurely examination. On reaching home, when I began 

 to inspect it I saw that the little bristling tubes that had 



