NORTH AMERICAN CONCHOLOGY. 



83 



Page. 



Fig. 



Name. 



Locality. 



62 



9 



Argonauta arctica. 



Greenland. 



108 



70 



Buccinum plumbeum. 



California. 



110 



85 



cyaneum. 



Greenland. 



in 



110 



porcatum. 



Gulf of Mexico. 



114 



154 



virgineum. 



Rivers in Virginia. 



126 



82 



Murex canaliculatus. 



Canada. 



127 



92 



fornicatus. 



Greenland. 



128 



105 



corona. 



Gulf of Mexico. 



135 



28 



Trochus Groenlandicus. 



Greenland. 



136 



50 



neritoideus. 



Greenland. 



147 



64 



Turbo albulns. 



Greenland. 



156 



28 



Helix punctata. 



Virginia. 



175 



14 



Haliotis Cracherodil. 



California. 



179 



45 



Patella calyptra. , 



N.W. Coast of America^ 



180 



63 



testudinalia. 



Greenland. 



183 



101 



porphyrozonias. 



North America. 







SUPPLEMENT TO THE SAME, 



1828. 



2 



1 



Mya rotunda. 



North America. 



2 



2 



oblongata. 



North America. 



2 



3 



alata. 



North America. 



3 



4 



nasuta. 



North America. 



3 



5 



undulata. 



North America. 



3 



6 



gravis. 



North America. 



3 



7 



rugulosa. 



North America. 



3 



8 



obliqua. 



North America. 



3 



9 



ambigua. 



North America. 



3 



10 



rigida. 



North America. 



3 



11 



praelonga. 



North America. 



3 



12 



angulata. 



North America. 



8 



6 



Conus gradatus. 



California. 



13 



26 



Buccinum Noveboracensis. 



America. 



14 



24 



Strombus Sayii. 



North America. 



16 



1 



Trochus undosus. 



California. 



16 



2 



unguis. 



California. 



21 



11 



Helix tridentata. 



North America. 



21 



12 



angulata. 



North America. 



21 



13 



subcarinata. 



North America. 



21 



14 



septemvolva. 



Florida. 



21 



15 



monodon. 



North America. 



21 



10 



fraterna. 



North America. 



21 



17 



declsa. 



North America. 



21 



18 



dissimilis. 



North America. 



21 



19 



virginea. 



North America. 



22 



34 



Sayii. 



North America. 



