se. 
ANGUINARIA. 287 
elastic to admit the foot. Dr. Johnston states, on my au- 
thority, that it is frequent on the coast of Ayrshire. I must 
have made some mistake in giving this information, for it 
is rather rare. It abounds, however, on specimens of Ry- 
tiphlaa pinastroides, sent to me from Hastings by Mr. 
Tumanowicz ; also, en the same alga, received from Miss 
S. Beever and Mrs. Gatty. 
Genus IX. ANGUINARIA, Lamarck. 
Gen. Char. Polype-cells spathulate, erect, scattered, with a 
lateral aperture near the apex, originating from a creeping, fis- 
tular, sub-calcareous fibre, adnate to a foreign base. Polypes 
Aseidian.— Johnston. 
1, ANGUINARIA sPATHULATA, H/lis. (Plate XVI. fig. 56.) 
Hab. Coast of Ireland, W. Thompson; coast of York- 
shire, Mrs. Gatty; Salcombe, Rev. T. Hincks; coast of Ayr- 
shire, D. L. 
This has been called Snake Coralline, from its shape, or 
because, like a snake, it creeps in a winding way along the 
stems of such seaweeds as Dasya coccinea or Rytiphlea 
pwastroides. “ From very small holes, in the broadest part 
of the irregular winding tube, there arise here and there 
small, testaceous, white, hollow figures, exactly resembling 
