92 
The fossils which I possess of this genus are chiefly Italian. Among 
these I perceive, 1. D. fossife, Linn, approaching, by its numerous 
small longitudinal decussated strice, to I), striatulum ; but differing 
from that shell in not being angulated ; and in the cone, which it 
forms, diminishing more slowly towards its apex. 2. D. seocangulum, 
Linn. In this shell, the minuter strise, interposed between the large 
angular ones, vary in their number from one to three. Some of these 
fossils possess all the characters of this species, but have their longi- 
tudinal striae interrupted by obliquely-disposed, transverse, or annular 
strise, placed at various distances. These, perhaps, should be con- 
sidered as D. annulatum. 
In the collection of Mr. Strange were some silicious casts, formed 
in the cavities of dentalites. These, being partly transparent, and 
partly of the whiteness and opacity of china, have a very beautiful 
appearance. I am totally uninformed, as to the place in which they 
were found, but suspect them to have been formed in the fossils 
above described, from Italy. 
This shell is filled by one of the Vermes, possessing exterior organs. 
LXIX. Vermicularia. A tubular shell, turned spirally at its be- 
ginning, but continued more or less contorted : the sides entire, 
through its whole length, and the opening simple and round. The 
inhabitant a cephalous mollusca. 
Fossil specimens of shells of this genus appear to be by no means 
rare : silicious specimens are found in the green sandy stratum in 
Wiltshire. I have also specimens, from the collection of Mr. Strange, 
which were obtained by that gentleman from the hills of Tuscany. 
To one very fine fossil, which Mr. Strange considered worthy of 
being made the subject of an engraving of Gregori, after a drawing 
of Bonati, a piece of lace coral is attached, with a tubular shell, 
having the appearance of being formed by a series of funnel -formed 
bodies, the narrow parts of the superior being inserted in the wider 
parts of the inferior. 
