332 



BIBLIOGRAPHY OF 



Unio monodontus Dames. 



occidens Lea. 



gracilis Barnes. 



laevissirnus Lm. 

 Alasmodonta marginata Say. 

 Anodonta Ohioensis Say. 



areola Say. 



undulata >ay. 



cataracta Say. 

 Unio compressus Lea. 



ventricosus Barnes. 



plicatus Say. 



siliquoideus Barnes. 



perplexus f<<a. 



phaseolus Hildreth. 



sulcatus Lea. 



Unio ridibundus Say. 

 politus > . 

 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. 



Coill*<id. — Observations on the Tertiary and more Recent For- 

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

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



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



Page. 



125 

 125 

 125 



Page. 



121 Area transversa. 



124 Cytherea Sayana. 



C. convcxa Say. 



124 Pholas costata Lam. 



124 Ostrea Virginiana Gmel. 



124 Solen ensis Linn. 



124 Saxicava rugosa Lam. 



124 Venus mercenaria Lam. 



124 Panopea refiexa Say = P. 



Faujasii? 

 12.") Mactra tellinoides Conr. 



125 Pandora trilineata s . 

 125 Cardita tridentata Say. 

 125 Lucina contracta Say. 

 125 crenulata Conr. 



Lucina divaricata Lam. 



Crepidula convexa 

 glauca Say. 

 12,"i plana Say. 



125 Fusus cinereus Say. 

 125 Nassa trivittata Say. 

 125 lunata Say. 



125 Natica duplicata Say. 

 1 25 heros Say. 



125 Fulgur carica Say. 

 125 canaliculatus 5 



125 Scalaria clathrus I. 

 125 Vermetus lumbricalis Lam. 

 125 Rangia cyrenoides. 



Clathradon cuneata. 



(Appendix to same.) 



153 Amphidesma inequale Say. 153 Corbula contracta Say. 



153 Arthemis concentrica. 153 



153 Anomia ephippium Linn. 153 



153 Cytherea gigantea Lam. 153 



153 Lutraria canaliculata Say. 153 



153 Mactra lateralis Say. t 



Oliva litterata Lam. 



zonalis Lam. 

 Pecten magellanicus. 

 Cerithium dislocatuni. 



