Mollusca/ PU.23. * 
1 Gyelestoma’ articulata’ 
2 Helix argellacea. 
3 Cyelestema’ pulchra. 
4 Cye. Madagascariensis. 
5 Cyc. auriculare’. 
London; Published by Whittaker &C° Ave Maria/Lanet&#. 
