PLATE CLXIL 



DENTALIUM OCTANGULATUM, 



EIGHT-RIDGED TOOTH-SHELL. 

 GENERIC CHARACTER. 



Animal a Terebella. Shell univalve, tubular, straight or slightly*" 

 curved, with an undivided cavity open at both ends, 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell white, somewhat curved, with eight ribs or angles, and three 

 intermediate striae. 



Dentalium octangulatum : testa alba subarcuata octangulata : 

 interstitius tri-striatis. 



Dentalium striatulum : GmeL Syst. Nat. 3738. sp. 13? 



For the discovery of this elegantly striated tooth-shell, as a native 

 of the British coasts, we have once again to acknowledge our obli- 

 gation to a lady, mentioned on other similar occasions in the progress 

 of this work, Miss Pocock ; several shells of this kind were found 

 by her on the sandy coasts of Cornwall, near Lelant, in the year 

 1802, 



F 4 



