222 



BIBLIOGRAPHY OF 



22 



Unio verrucosus Barnes. 





U. tuherculata? Raf. 





tuberculosa Valen. 





verrucosus purpureus 





Hild. 





tuberculatus Conrad. 



22 



graniferus Lea. 



(En 



•ata) pernodosusZ/ea. 



22 



irroratus Lea. 





U. verrucosus albus Hild. 





stegarius Conrad. 



22 



caperatus Xm. 





U. abacoides Hald. 



23 



dromas Lea. 



23 



Lamarckianus Lea. 



23 



^sopus Green. 





U. cicatricosus Conrad. 





varicosus Conrad. 





cyphius Conrad. 



23 



varicosus Lea. 





U. cicatricosus? Say. 





cicatricosus Conrad. 



23 



perplexus I^ea. 





U. gibbosus? Raf. 





gibbosus Conrad. 



23 



tuberculatus Barnes. 





U. pustulata Swain. 



23 



cylindricus Say. 





TJ. naviformis Lam. 





(c. Spinous.) 



23 



spinosus Lea. 



23 



collinus Conrad. 





(d. Smooth.) 



23 



arceeformis Lea. 





U. nexus Say. 



23 



triangularis Barnes. 





U. formosus Lea. 





cuneatus Swain. 



23 



Poremanianus Lea. 



23 



elegans Lea. 





U. truncatus Say. 



24 



donaciformis Lea. 



24 



zigzag Lea. 



24 



heterodon Lea. 



24 Unio penitus Conrad. 



24 Estabrookianus Lea. 



24 securis Lea. 



U. depressa (?) Raf. 



lineolatus Say. 

 24 abacus Hald. 



24 camelus Lea. 



24 compressissimus Lea. 



24 ovatus Say. 



U. ventricosus Desh.. 



subovafus Desh. 



occidens Desli. 

 ^glia ovata Swain. 

 24 satur Lea. 



24 subovatus Lea. 



24 crassidens Lam. 



U. cuneatus Barnes. 



niger? Raf. 



niger Conrad. 

 24 incrassatus Lea. 



24 Forbesianus Lea. 



24 gibber Lea, 



24 pumilis Lea. 



24 rubiginosus Lea. 



U.fiavus Conrad. 



cerinus Conrad. 

 24 Bigbyensis Lea. 



24 maculatus Conrad. 



24 Barnesianus Lea. 



24 cuneolus Lea. 



24 pileus Lea. 



25 Sowerbianus Lea. 

 25 trigonus Lea. 



25 cyrenoides Phil. 



25 Holstonensis Lea. 



25 tumescens Lea. 



25 fulgidus Lea. 



25 solidus Lea. 



25 obliquus Lnm. 



U. undatus Barnes. 



trigonus Say. 



mytiloides Eat. 



undulatus Desli. 



cordatus? Raf. 



cordatus Conrad. 



caridiacea Guerin. 



