332 



BIBLIOGRAPHY OP 



TJnio monodontus Barnes. 



occidens Lea. 



gracilis Barnes. 



Isevissimus Lea. 

 Alasmodonta marginata Say. 

 Anodonta Ohioensis Say. 



areola Say. 



nndulata Say. 



cataracta Say. 

 Unio compressus Lea. 



ventricosus Barnes. 



plicatus Say. 



siliquoideus Barnes. 



perplexus Lea. 



phaseolus Hildretti. 



sulcatus Lea. 



Unio ridibundus Say. 

 politus Say. 

 subrotundus Raf. 

 parvus Barnes.' 

 zig-zag Lea. 

 triangularis Barnes. 

 dehiscens Say. 

 pileus Lea. 

 iris Lea. 

 parvus Barnes. 

 glans Lea. , 



lapillus Say. 

 calceolus Lea. 

 plicatus. 

 alatus. 



Conrad. — Observations on the Tertiary and more Recent For- 

 mations of the Southern States: by T. A. Conrad. (From 

 Journ. Acad. Nat. Sci. Phila., o. s., vol. vii, pt. 1. 1834.) 

 The following pliocene species are said to be found recent on the coast : — 



124 

 124 



124 

 124 

 124 

 124 

 124 

 124 



125 

 125 

 125 

 125 

 125 



153 

 153 

 153 

 153 

 153 

 153 



Area transversa. 

 Cytherea Sayana. 



C. convexa Say. 

 Pholas costata Lam. 

 Ostrea Virginiana Gmel. 

 Solen ensis Linn. 

 Saxicava rugosa Lam. 

 Venus mercenaria Lam. 

 Panopea reflexa Say = P. 



Faujasii ? 

 Mactra tellinoides Conr. 

 Pandora trilineata Say. 

 Cardita tridentata Say. 

 Lucina contracta Say, 

 crenulata Conr. 



Page. 



125 Lucina divaricata Lam. 



125 Crepidula convexa Say. 



125 glauca Say. 



125 plana Say. 



125 Fusus cinereus Say. 



125 Nassa trivittata Say. 



125 lunata Say. 



125 Natica duplicata Say. 



125 heros Say. 



125 Fulgur carica Say. 



125 canaliculatus Say. 



125 Scalaria clathrus Lam. 



125 Vermetus lumbricalis Lam. 



125 Rangia cyrenoides. 



Clathradon cuneata. 



(Appendix to same.) 



Amphidesma inequale Say. 153 Corbula contracta Say. 

 Arthemis concentrica. 

 Anomia ephippium Linn. 



Cytherea gigantea Lam. 

 Lutraria canaliculata Say. 

 Mactra lateralis Say. 



153 

 153 

 153 

 153 



Oliva litterata Lam. 



zonalis L^nm. 

 Pecten magellanicus. 

 Cerithium dislocatum. 



