Pa. 



PI. 



Fig 



339 



xiii 



■50 



841 



xii 



5 



343 



xii 



37 



343 



xii 



38 



NORTH AMERICAN CONCHOLOGY. 63 



[Hanley, Descriptive Catalogue.] 

 Page. Name. Locality. ' 



327 Terebratula Labradorensis Sowb. Labrador. 



Terebratella Labradorensis Gray. 

 329 septentrionalis Couth. United States. 



T. caput-serpentis Gould. 



Terebratulina septentrionalis Gr. 

 334 Lingula albida Hinds. California. 



APPENDIX. 



Containing a list of the plates in wliicli some of the above species are 

 figured, and descriptions of the following : — 



Name. Locality. 



Periploma obtusa Hani. W. America. 



Amphidesma proximum Ad. Mexico. 



A. corrugatum Ad. 

 Cumingia coarctata Sowb. Mexico. 



tellinoides Conr. .North America. 



Mactra tellinoides Gould. 

 350 xiv 37 Crassina Banksii. Arctic Ocean. 



Nicania Banksii Leach. 

 Astarte Banksii Beechey. 

 350 xiv 38 striata Leach. Greenland. 



Nicania striata Leach. 

 Cyrena sordida Hani. Florida? 



Cytherea aurantia Soivb. Mexico. 



C. aurantiaca Sowb. 

 Diane aurantia Desh. 

 Venus (Saxidomus) Nuttalli Conr. California. 

 Area Reeveana D'Orb. W. America. 



A. squamosa (var.) D'Orb. 

 Helblingii Rve. 

 Nucula delphinodonta Migh. Maine. 



tenuisulcata Couth. North America. 



N. minuta Gould. 

 Unio intermedius Conr. North Carolina. 



semigranosus Von dem Busch. Mexico. 

 collinus Conr. Virginia. 



Hembeli Conr. Louisiana. 



subplanus Conr. Virginia. 



amaenus Lra. Tennessee. 



Curreyianus Lea. Tennessee. 



MiiTfjfiritann Cnrreyiana Lea. 

 388 xxiv 40 Meleagrina Mazatlanica//anZ. Mazatlan. 



352 



xiv 



51 



354 



XV 



20 



362 



xvi 



16 



373 



xviii 



51 



377 



XX 



16 



377 



XX 



17 



381 



XX 



28 



381 



XX 



33 



382 



XX 



57 



383 



xxiv 



3 



383 



xxi 



16 



386 



xxiv 



9 



387 



xxiv 



10 



