172 



Helicophanta, Beck. Hclicophanta /3, Ferns. Leiostoma, sp. 



Swains. Helix Cornu-gigantea. 

 Geotrochus, Van Hasselt, 1824. Geo. obtusus. 

 Geotrochus, Swains. 1840. Geotrochus, sp. Beck. Trochus, sp. 



Chernn. Helicogena, sp. Ferns. Helix pileus. 

 Helicina, Spix, not Lam. Geotrochus, sp. Beck. Trochus, sp. 



Burrows. Helicogena, sp. Ferus. Carocolla, sp. Gray, Menke. 



Troch. bifasciatus. 

 Solarium, (sp.) Spix, not Lamk. Artemon, sp. Beck. Sol. can- 

 did um. 

 Dentellaria, Schum. 1817; Beck, 1837. Helix fuliginea. 

 Lucidula, Swains. 1840. Dentellaria, sp. Beck. Helix barba- 



densis. 

 Lucernella, Swains. 1840. Dentellaria, sp. Beck. Helix hippo- 



castanum. 

 Thelidomus, Swains. 1840. Dentellaria, sp. ? Beck. Helix aspera. 



456. Vallonia, Risso, 1826. Amplexus, Brown, 1827. Lucena, 

 Hartm. 1821. Circinaria, Beck, 1837. Zurama, Leach MSS. 

 1819. Corneola, sp. Held. 1837. Helix pulchella. 



Mesomphyx, Rafinesque. Circinaria, sp. Beck. Helix concava. 

 Macrocyclis, Beck, 1837. Helicella, sp. Ferus. H. peruviana. 

 Campylsea, Beck, 1837. Helix hispana. 

 Chilostoma, Fits. Campylsea, sp. Beck. Helix foetens. 

 Corneola, sp. Held. 1837. Helicogona, sp. Risso. Helix cornea. 

 Solarium, Spix. Helicella, Swains. 1840. Helicella, sp. Ferus. 

 Solaropsis, Beck, 1837. Helix pellis serpentis. 



457. Iberus, Montf. 1810. Carocolla, sp. Lam. Helicogena, sp. 

 Ferns. Helix Gaulteriana. 



Chilotrema, Leach, 1819; Gray, Beck. Latomus, Fitz. Caro- 

 colla, sp. Lamk. Helicogona, Risso. Helicogena, sp. Ferus. 

 Lenticula, Held. 1837. Helix lapicida. 



Carocollina, Ehrenb. ; Beck, 1837- Carocolla, sp. Menke. Helix 

 barbata. 



Trigonostoma, Fits, Gray. Helicodonta, sp. Ferus., Risso. Vor- 

 tex, Beck. Gonostoma, Held. 1837. Helix obvoluta. 



Drepanostoma, Porro. Chloritis, sp. Beck. Helix Drepanostoma. 



Chloritis, Beck. Helix ungulina. 



Planospira, Beck, 1837. Lomastoma, Ferus. Pusiodon, sp. 

 Swains. 1840. H. zonaria. 



Obba, Beck, 1837. Helicella, sp. Fe"rus. II. planulata. 



Obba, sp. Beck, 1837- Hehcogeua, sp. Ferns. Trochus, sp. 

 Chemn. H. papilla. 



Ampelita, Ferus. H. labrella. 



Discosoma, sp. Swains. 1840. Carocolla, sp. Gray, Lesson ; Beck, 

 1837. H. marginata. 



Carocollus, Montf. 1810. Carocollus, Lamk. 1812. Helix Caro- 

 colla. 



Carocolla, Schum. 1817. Helix Lampas. 



Polydontes, Montf. 1810. Helicodontes, sp. Ferus. H. iinperator. 



