422 PROCEEDINGS OF THE ACADEMY OF 



DESCRIPTION OF SEVEN NEW SPECIES OF UNIONIDi OF THE 



UNITED STATES. 



BY ISAAC LEA. 

 Unio infulgens. 



Testa la.'vi, subohlonga, inflata, inaequilaterali, postice subbian- 

 gnlari, anlice rotundata ; valvulis crassis, antice crassioribus ; 

 iiatibus prominulis ; epidermide nitida, polita, eradiata ; dentibus 

 cardinalibus subgi-andibus, sulcatis et in utroque valvule duplici- 

 bus ; lateralibus longis, crassis subrectisque ; margarita salmonis 

 colore tincta et valde iridescente. 



Hah. Stewart's Pond, Union Co., N. Car. C. M. Wheatley. 



Unio subolivaceus. 



Testa laevi, oblonga, subcorapressa,infequilaterali, postice obtuse 

 angulari, antice rotundata; valvulis crassis, antice crassioribus; 

 natibus prominulis; epidermide luteo olivacca, subnitida, eradi- 

 ata ; dentibus cardinalibus grandis, sulcatis, in utroque valvulo 

 duplicibus ; lateralibus percrassis, obliquis ; magarita alba et iri- 

 descente. 



Hah. Catawba River, Fox and Yadkin Rivers, N. Car. C. M. 



Wheatley. 



Unio cirratns. 



Testa la?vi, oblonga, subcompressa, inoequilaterali, postice obtuse 

 biangulari, antice rotunda; valvulis subcrassis, antice parum cras- 

 sioribus ; natibus prominulis; epidermide tenebroso-fusca, sub- 

 cirrata, eradiata; dentibus cardinalibus parviusculis, sulcatis, in 

 utroque valvulo duplicibus; laterabus sublongis, lamellatis sub- 

 rectisque ; margarita vel alba vel salmonis colore tincta et valde 

 iridescente. 



Hah. Abbeville Dist., S. C. Dr. Barratt. 



Unio subcylindraceus. 



Testa li^evi, subcylindracea, valde transversa, valde imiequila- 

 terali, postice obtuse biangulari, antice oblique rotundata ; valvu- 

 lis crassis, antice parum crassioribus ; natibus prominulis ; epi- 

 dermideluteo-viridi,perradiata; dentibus cardinalibus parviusculis, 

 compresso-conicis crenulatisque ; lateralibus pr.x'longis, lamellatis 



