PLATE CLXII. 



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 stris. 



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. 



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