170 



VULGARIS. Leach. fide. Sow. in Malac. Maff.~~ Whorls 

 four, rapidly increasing, the body whorl very large, 

 smooth, glossy, greenish, sometimes with one rufous 

 spiral band (when bleached brownish white) ; pillar 

 cavity wide ; rounded, the spire short and blunt ; aper- 

 ture suborbicular, nacreous, outer lip thin' and prowti- 

 nent retrally, where it joins the body nearly at right 

 angles, pillar lip reflected ; operculum finely striated 

 spirally. ,..1. Onfueiynot very itncommon. 



T. CARNETJS. Lowe, in Z, J* 2. p. 107. t. & /. 

 12,3. MARGARITA C. Sow. in Malac. Mag. p. 25. 

 Sow. Conch. II. f. 9. Subconical, the spire short, 

 apex elevated and acute ; whorls lour, girt with regular 

 elevated rather distant striae; aperture large, suborbicu- 

 lar, anteriorly subangulated ; umbilicus large and deep, 

 Scotland (Oban.) 



T. SUBCARINATUS. HELIX S. Mont, p. 438. t. 

 7./. 9. CINGULA S. ^.305. TROCHUS RUGOSUS, 

 Brown, in Wern. Mem. 2. p. 520. t. 24. /. 5. Sub- 

 pellucid, white, finely striated longitudinally, whorls 

 three, the last large, the others small but little produced 

 and placed somewhat laterally ; body whorl with two 

 spiral ridges at %he base and another near the suture ; 

 umbilicus wide and deep, aperture oval, outer Hp 



