DENTALIUM. A37 
Dentaliunw entalis. 
Most of the figures included in the synonymy of this shell 
are so uncharacteristic that it is only by the accompanying 
text that one is enabled to arrive at any definite conclusion as 
to what species they were intended for. From the brillant 
lustre and roseate hue ascribed to the Dentalia delineated by 
Bonanni and Gualtier, I am inclined to refer them to D. ru- 
bescens; the drawings of Lister (2, not 3,1s the numeral ap- 
pended to the figure, which, however, is the third by position), 
and perchance of Ginanni, are meant for Tarentinum; the 
species of the ‘ Fauna Suecica’ was evidently, from its Northern 
locality, the entale of the ‘ British Mollusca,’ of which the cited 
engraving of Rumphius, although possibly not designed for it, 
proves no bad representation: the seven figures K of Argen- 
ville (misquoted C in the twelfth edition) might pass for either 
of the two latter, as indeed, were it not for the text, might those 
of Ginanni and Lister. These three tusk-shells equally corre- 
spond with the brief account in the ‘Systema,’ and are all 
present in the Linnean collection; the entale in a tin box; the 
rubescens in a paper marked “ entalis, Brander ;” and the Taren- 
tinum in a portion of an old English newspaper (?) with the 
specific name in a doubtful hand-writing. Although the 
synonymy of the ‘Museum Ulric’ includes all three, the 
expressions “alba” and “levis” of that work, when strictly 
interpreted, suit the peculiarly smooth and white Northern 
entale so much more accurately than the rest, that it seems 
desirable, especially when we take into consideration that a 
Swedish shell was more likely to have attracted our author’s 
attention, to reserve the appellation for that species. 
Dentalium corneuu. 
In the same tin box with the two preceding species in the 
Linnean cabinet, I found the Dentaliwm (Ditrupa) subulatum of 
Deshayes (Mon. Dent. pl. 2, f. 29), and as the occurrence. of 
