DESCRIPTION. 
159 
and the necessary alteration is made in the terms 
of the specific description. 
Fig;. 3. H, nemoralis. 
Shell imperforate, rounded, smooth, diapha- 
nous : aperture pyriform, or irregularly lunate. 
Lister Conch, Tab, 57. Fig. 54. 
Specimen pale orange, margin of the aperture 
brown ; whorls five. 
Inhabits the woods of Europe. 
Fig. 4. H. Columna, 
Shell tapering ; whorls contrary ; aperti;re 
Lister Conch. Tab, 38. Fig. 37, 
Specimen white, pellucid, with purplish longitu- 
dinal rays ; longitudinally and transversely striate. 
Inhabits Guinea. 
Fig. 5. H, stagnalis. 
Shell imperforate, ovate, subulate ; aperture 
ovate. 
Lister Conch. Tab. 123. Fig. 21. 
Specimen pale yellowish brown, darker towards 
