SECTION B.] NORTH AMERICAN CONCHOLOGY. 



499 



[Contributions to Conchology.] 

 Page. 

 90 Description of supposed new species of Land Shells 

 Jamaica : by Prof. C. B. Adams. 



which inhabit 



90 Cyclostoma virgineum Ad. 



90 anomalum Ad. 



91 nodulosum Ad. 



91 retrorsum Ad. 



92 Shepardianum Ad. 



92 papyraceum Ad. 



93 Griffithianum Ad. 

 93 granosura Ad. 



93 Helicina dubiosa Ad. 



94 var. intermedia Ad. 

 94 Geomelania fortis Ad. 



94 magna Ad. 



95 procera Ad. 

 95 gracilis Ad. 



95 typica Ad. 



96 vai'. pygmsea Ad. 

 96 afBnis Ad. 



Page, 

 96 

 96 

 96 

 96 

 97 

 97 

 97 

 98 

 98 

 98 

 98 



100 

 100 



Geomelania media Ad. 



vicina Ad. 



striosa Ad. 



costulosa Ad. 



conica Ad. 



pauperata Ad. 



exilis Ad. 

 Cyliudrella costulosa Ad. 

 Helix sulphurea Ad. 

 Dolium perdix Ad. 

 Helix picturata Ad. 

 II. sinuata Born. 

 sinuosa Gmel. 



picturata Ad. 



sinuata Ddess. 

 II. picturata Ad. 



No. 7. 

 April, 1850. 



100 Descriptions of supposed new species 

 Jamaica: by Prof. C. B. Adams. 



of Land Shells which inhabit 



Achatina osculans Ad. 

 Helix connectens Ad. 



alligans Ad. 



amabilis Ad. 



fuscolabris Ad. 



no bills Ad. 



Redfieldiana Ad. 



Blandiana Ad. 



osculans Ad. 

 Proserpina pisum Ad. 

 Helix ingens Ad. 

 Cyclostoma Sauliae Soich. 



suturale Sowh. 



109 Descriptions of supposed new species of Marine Shells which in- 

 habit Jamaica: by Prof. C. B. Adams. 



Narica (?) anomala ^Iri. 1110 Odostomia solidula Jt/. 



101 



Helicina ampliata Ad. 



104 



101 



pusilla Ad. 



105 



101 



Cylindrella humilis Ad. 



105 



1 '2 



pusilla All. 



105 



11)2 



pupaeformis Ad. 



106 



102 



procera Ad. 



106 



102 



Achatina costulosa Ad. 



107 



103 



nitida Ad. 



107 



103 



Gayaua Ad. 



107 



103 



Eimilis Ad. 



108 



104 



tenera Ad. 



108 



104 



longispira Ad. 



108 



104 



gracilior Ad. 



108 



109 

 109 

 109 

 109 



Odostomia gemmulosa Ad. 110 

 canaliculata Ad. llii 



ovuloides Ad. I 110 



Eulima gracilis Ad. 

 arcuata Ad. 

 conica Ad. 



