THE 
ELEPHANTINE DENTALIUM. 
i ee a ee i ee ed 
GENERIC CHARACTER. 
Animal refembling a Terebella. 
Shell univalve, tubular, with undivided cavity, 
pervious at each extremity. 
SPECIFIC CHARACTER, Sc. 
SLIGHTLY CURVED GREENISH DEN- 
TALIUM with ten longitudinal ribs. 
The GREAT RIBBED TOOTH-SHELL. 
The LARGE GREEN DENTALIUM. 
In the genus Dentalium, fo named from its tooth- 
like form, there prevails a confiderable degree of 
general fimilarity between the different fpecies; of 
which, however, fome are fmooth, while others are 
marked by longitudinal angular proceffes. In this 
latter divifion ranks the fpecies reprefented on the 
plate, which is the largeft of the genus. Its gene- 
ral color is a dull green. It is found both in the 
European and Indian feas. 
