THE LINNEAN GENERA. 



xix 



Linnean Genera. 



25. Strombus 



26. Murex 



27. Trochus, 



Lamarckian Genera. Plate. Figure. 



fStrombus 25 22 



Pirena 25 40 



Cerithium 25 39 



Rostellaria 24 1 



.Pteroceras 24 5 



"Murex 25 6 



Fasciolaria 27 98 



Fusus 26 71 



Pyrula 26 82 



Struthiolaria 26 62 



Ranella 26 44 



Triton 27 95 



LRicinula 26 47 



f Trochus 29 66 



I Pyramidella 30 122 



] Solarium 29 62 



LRotella 29 78 



f Turbo 30 34 



j Pupa 31 110 



28. Turbo.. . J Clausilia 32 146 



j Scalaria 31 88 



Delphinula 31 83 



LTurritella 32 130 



"Helix 33 76 



Paludina 34 119 



Caracolla 33 4,4, 



Anostoma 33 26 



Bulimus 34 102 



Succinia 35 171 



29. Helix.. . < Cyd-toma S2 1 



- Planorbis 33 55 



Lymnaea 35 166 



Melania 35 164 



Valvata 31 87 



Ampullaria 33 71 



Janthina 34 1 1 6 



.Sigaretus , 35 187 



b2 



