PLATE CXIL 



TURBO DUPLICATUS. 



TfFO RIDGED SCREfT SHELL, 



GENERIC CHARACTER. 



Animal Limax. Univalve, spiral, or of a taper form. Aperture 

 somewhat compressed, orbicular, entire. 



SPECIFIC CHARACTER 



AND 



SYNONYMS, 



Shell slender, with two sharp prominent spiral ridges. 



Turbo Duplicatus : spirae anfractibus carinis duabus acutis. 

 GmeL Linn. Sj/st. p. 3607. sp. 79. 



Buccinum crassum, duobus acutis, & insqualiter altis striis in singulis 

 duodecim minimum spiris donatum. An. Buc- 

 cinum striatum aa.'k'nn^ Fab. Columnae ? List 

 H. An. Angl. p. 160. tit. 7. tab. 3. fig. 7. 



Turbo duplicatus, doubled. Penn. Br. Z0OL No. 112. tab. 81. 

 fg. 112. 



Strombiformis major rubro lutesccns aut pullus : anfractibus duabus 

 carinis sive striis acutis insignitis. Bicarinatus. s. 

 Torcular. Da Costa. Br. Conch, p. 110. 44.— 

 Tab.e.fg. 3. 



