NORTH AMERICAN CONCHOLOGY. 



2tt 



Pa. 



JTame. 



Pa 



4 



Melania calatura (new) Conr. 



5 



4 



crebricostata Lea. 



5 



4 



ebenum Lea. 



5 



4 



impressa Lea. 





4 



Le Contiana Lea. 



5 



4 



nebulosa (new) Conr. 



5 



5 



ocosensis Lea. 



5 



5 



perangulata (new) Com. 



5 



5 



percarinata (new) Conr. 



5 



5 



regularis Lea. 



5 



5 



symmetrica Conr. 



5 



5 



sordida Lea. 



5 



5 



Ip fusiformis Lea. 



5 



5 



Paludina decisa Say. 



5 



5 



Georgiana Lea. 



5 



5 



vivipera Lam. 



5 



5 



Amnicola tenuipes Bald. 



5 



5 



Ampullaria Hopetonensis 



5 





A. depretisn Say. \_Lea. 



5 



5 



Natica duplicata Say. 



5 



5 



lieros Say. 



5 



5 



pusilla Say. 



5 



5 



Sigaretus perspectivus Say. 



5 



5 



maculatus Say. 



5 



5 



lanthina communis Lam. ■ 



5 



5 



Scalaria clathrus Say. 



5 



5 



multistriata Say. 



5 



5 



lineata Say. 



5 



Name. 

 Turbo irroratus Sny. 

 Turritella alternata Say. 

 Pyramis striatula Couth. 

 Alenotigma of Gray. 

 Fasciolaria distans Lam. 



tulipa Lam. 

 Fusus cinereus Say. 

 Pyrula canaliculata Lam. 



carica Lain. 



perversa Sny. 



papyratia Say. 



spirata Soy. 

 Ranella caudata Say. 

 Dolium galea Lam. 

 Buccinum (Nassa) acutum 



lunatum Say. 



obsoletum Say. 



trivittatum Say. 



unicinctum Say. 



vibex Say. 

 Terebra Petittii Kiener. 

 Columbella avara Say. 



mercatoria Say. 

 Oliva conoidalis Lam. 



litterata Lam. 



mutica Say. 



zonalis Say. 

 Spirula Peronii Lam. 



iSay. 



Say. — American edition of Nicholson's Encyclopedia, quoted 



on page 254 of Part I. 



Since the printing of page 254, I have met with a copy of the 

 first American edition of Nicholson's Encyclopedia, and find the 

 date of the volume containing Mr. Say's paper (Yol. II) to be 

 1817, and not 181 G as I have stated. The following is the com- 

 l)lete title and accurate date of the various editions : — 



The Fir.st American Edition of the British Encyclopedia or Dictionary of 

 Arts and Sciences, comprising an Accurate and Popular View of the 

 Present Improved State of Human Knowledge: by William Nicholson, 

 &c. &c. Philadelphia: Samuel A. Mitchell & Horace Ames. Vol. I, 

 1S16; Vol. II-VI, 1817. 



The second edition contains 12 volumes, all bearing the date of 1S18, 



