XX 
Tubularia, 13. (Ver- 
metus Semisurrectus ? 
Pits t.9,7. 19.) 7.68. Triquetra, 14. Variety 
Pilograna, 13. Serrulata, 244, f. 53. 
Vermicularis,13(h). f.66 Variety coiled up in 
VERMILTIA. 
~~ 
(h) The variety Tubularia of Turton seems so very 
distinct, that it was only after continual observation that 
I assented to Mr. Berkely’s synonyms in the Magazine 
of Natural History. The Vermicularis has a thin keel, 
(often with two additional smaller ones,) aud the mouth 
seems armed above with an obtuse tooth-like projection, 
(the shell being cylindrical cannot be confused with V. 
Triquetra.) It is rarely found solitary, and the larger 
end scarcely if at all, projects above the surface. In this 
state it appears to be the Rugosa of the Conchological 
Dictionary, p. 154, and bears much resemblance to Mul- 
leri, but that species (at least the Vermicularis of Mon-_ 
tague, which is declared by Mr. B. to be the same) has a 
subquadrate look, for the top is somewhat flattened. 
When aged the carina aud tooth totally disappear, the 
shell rises at a considerable angle from the surface to 
which the lower portion is attached, the margin of the 
aperture becomes circular and reflected, and finally the 
relics of the successively formed mouths produce the effect 
of one tube crowing out of the other. 
