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DESCRIPTION OF A NEW GENUS (TRYPAN03T0MA) 



OS THE 



Family MELANDLE, and of Forty-live New Species. 



DESCRIPTION OF TEN T ' 

 OP THE UNI 



T ES OF unionidj: 



ES. 







DESCRIPTION OF TWO NEW SPECIES OF EXOTIC j 



s 



UNIONES AND ONE MONOCONDYLOU. 



< 



_5 | 



DESCRIPTION OF A NEW GENUS (GONIOBASIS) | 



OF THE 





Family MELANIDJE, and Eighiy-two Species. 



DESCRIPTION OF ELEVEN NEW SPECIES OF MELANIDJ] 



OP THE UNITED STATES. 



t 





BY 



ISAAC LEA, JLL. E>. 



PHILADELPHIA: 



KRRIHEW 4 THOMPSON, PRINTERS, 

 Lodge St., corner of Kenton Place. 

 1862. 





