SECTION B.] NORTH AMERICAN CONCHOLOGY. 



495 



[Contributions to Conohology.] 

 Page. 

 41 New Auriculidre which inhabit Jamaica: by Prof. C. B. Adams. 



41 Melampus coronatus Ad. 



41 Pedipes ovalis Ad. 



42 Catalogue of Auriculidse which inhabit Jamaica. 



42 Melampus coniiorvaia Brug . 42 Melampus coronatus Ad. 



42 flavus Gmel. j 42 cingulatus Pfr. 



Auricula monile Lam. 42 Pedipes quadridens Pfr. 



42 pusillus Gmel. 42 ovalis Ad. 



Auricula nitens Lam. 



42 D-escriptions of supposed new species of Fresh Water Shells which 

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



42 Paludina Jamaicensis Ad. 



42 Valvata pygmaea Ad. 



43 Planorbis Mac Nabianus 

 43 Redfieldi Ad. [Ad. 

 43 Haldemaiii Ad. 



43 Planorbis decipiens Ad. 



44 amnis Ad. 



44 Cyclas Veatleyi Ad. 

 44 pygniaea Ad. 



45 Catalogue of Fresh Water Shells which inhabit Jamaica: by Prof. C. 

 B. Adams. 



45 Melanopsis lineolata Gray. 



45 Melania spinifera Ad* 



45 Valvata pygmaea Ad. 



45 Paludina rivularis Ad. 

 45 Jamaicensis Ad. 



45 Ampularia fasciata (?) Lam. 



45 Planorbis Mac Nabianus 

 45 Redfieldi Ad. [Ad. 



45 Haldemani Ad. 



45 Planorbis dentiferu3 Ad. 



45 pallidus Ad. 



45 decipiens Ad. 



45 amnis Ad. 



45 Ancylus obscurus (?) Hald. 



45 Physa Soverbyana Orb. 



45 Limnaea umbilicata Ad. 



45 Cyclas pygmaea Ad. 



45 Veatleyi Ad. 



45 Remarks on the distribution of the Terrestrial and Fresh Water Mol- 

 lusca which inhabit Jamaica: by Prof. C. B. Adams. October, 

 1849. Read before the American Association for tbe Promotion of 

 Science, August 16, 1849 (and published also in their Proc. vol. ii, 

 p. 147, 1856.) 



No. 4. 



49 Remarks on the distribution of the Terrestrial and Fresh Water Mol- 

 lusca which inhabit Jamaica — continued. 



50 Cyclostoma solidum Ad. non Menke = C. Jayanum Ad. 



