NORTH AMERICAN CONCHOLOGT. 



123 



Page. 



Plate. 



Fig. 



246 







246 



xxxiii 



308 



247 



xxxii 



306 



248 



xxxiv 



223 



248 







248 







249 xxxiv 825 



Name. 

 Panopaea arctica Lam., e. 1. 

 Glycimeris siliqua Lam., e. 1. 



Plaolidae. 



Pholas crispata Linn. 

 truncata Say. 

 costata Linn., e. 1. 

 cuneiformis Say, e. 1. 

 oblongata Say, e. 1. 



Teredinidae. 



Teredo navalis Linn. 



Locality. 

 Grand Banks. 

 Grand Banks. 



Massachusetts. 

 Southern coast. 

 Car., Ga., Fla. 



259 

 259 

 259 

 259 

 259 

 259 

 259 

 259 

 260 



324 



TUNICATA. 



Ascidea Manhattensis Be Kay. 



rustica Lam., e. 1. Northern coast. 



plicata Lesueur, e. 1. Philadelphia. 



ovalis Lesueur, e. 1. Philadelphia. 



lobifera Lesueur, e. 1. Florida. 



proboscidea Lesueur, e. 1. Florida. 



intestinalis [no description]. Northern coast. 



raicrocosnius [no description]. Nor. coast. 

 Boltenia reniformis McLeay. 

 Ascidia clacata Miill. ? 



glohifera Sabine. 



Troosf . — Seventh Annual Report on the Geology of Tennessee; 

 by G. Troost, M. D. 1844. 



LIST OF SHELLS. 



Page. 



40 Unio .ZEsopus Green. 



40 alatus S<nj. 



40 amcBnus Lea. 



40 anodontoides Zea. 



40 arcaeformis Lea. 



40 argenteus Lea. 



4u asperrimua Zea. 



40 Barneaianua Zea. 



40 biangulatuB Zea. 



40 Bigbyensis Lea. 



40 brevidens Zea. 



40 capsaeformia Lea. 



Page. 



40 Unio circulua Lea, 



40 caelatua Conr, 



40 clavua Lam. 



40 Conradicus Lea. 



40 Cooperianus Lea. 



40 cornutua Barnes, 



40 crassidens Lam. 



40 crassua Say. 



40 creperus L^ea. 



40 Cumberlandicus Lea. 



40 cuneolua Lea. 



40 cylindricus Say. 



