PLATE XXXIII. 



FIG. I. II. 

 TURBO LITTOREUS. 



COMMON PERIWINKLE, 

 GENERIC CHARACTER. 



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

 what compressed, orbicular, entire. . 



SPECIFIC CHARACTER 



AND 



SYNONYMS. 



Shell with five spires : the firft much swelled, the turban tapering 

 and sharp pointed ; striated spirally. Lip thin, and much spread on 

 the pillar. 



Turbo Littoreus : testa subovate acuta striata, margine columnar!* 

 piano. Linn. Syst, Nat. p. 1232. No. 607. 

 Fn. Sv. 2. 2169. 

 Turbo Littoreus, Periwinkle. Penn. Br. Zool. No. 109. tab. 81. 



fig. 109. 

 Turbo-pyramidalis crussus fuscus, striis crebris praeditus. Littoreus. 

 Da Costa, Br. Conch, p. 98. 55. 



It is needless to enter into detail on a species so well known as the 

 Common Periwinkle ; yet it may be proper to observe, these shells, 

 in many instances, vary considerably. The young shells are reddish, 



