C 8 ] 



F I G. 28 



HELIX Llneata dorfo convexo umbilicata marglne acuto. 



The iiueated fiiail with two central white lines crofling the umbilicus 

 and a fliaip edged margin, 



The colour chefnut and pellucid, • 



From Hernhill Brooks on Flags— very rare. 



- F I G. 29. 



HELIX Striata apertura fubovali anfraftibus fupradornilibus. 



The oval mouth'd ftriated fnail with the fpires reflected on the back, 

 The colour greenifli — white pellucid, 

 From Sandwich — very rare. 



FIG. 30. 



HELIX Anfradibus duobus apertura fubrotunda ad umbilicum coarflata. 



The fnail with two fpires, and a roundifti aperture contraded near 

 the umbilicus, 



The colour white and pellucid, 

 From Sandwich — not common. 



TURBO. 



