170 PROCEEDINGS OF THE ACADEMY OP 



fusca, radiata, polita ; dentibus cardinalibus subgrandibus, subelevatis, et 

 subpyramidatis ; lateralibus sublongis subcurvisque ; margarita vel purpurea 

 vel salmonis colore tincta et iridescente. 

 Hab. Buckhead Creek, Burke County, Georgia. Bishop Elliott. 



Unio ^quatus. Testa laevi, elliptica, compressa, postice biangulata et 

 planulata, valde inaequilaterali ; valvulis subcrassis ; natibus prominulis ; epi- 

 dermide tenebroso-castanea, radiata, ad umbones polita ; dentibus cardinali- 

 bus subgrandibus, paulisper elevatis crenulatisque ; lateralibus sublongis, 

 lamellatis subrectisque ; margarita vel alba vel salmonis colore tincta et 

 iridescente. 



Hab. Buckhead Creek, Burke County, Georgia. Bishop Elliott. 



Unio naviculoides. Testa lajvi, transversa, subinflata, postice biangulata, 

 valde inaequilaterali ; valvulis subtenuibus ; natibus prominulis ; epidermide 

 tenebroso-fusca, striata ; dentibus cardinalibus parviusculis, compressis, tri- 

 gonis, in utroque valvulo duplicibus crenulatisque ; lateralibus praelongis, la- 

 mellatis subrectisque; margarita purpurea et iridescente. 



Hab. Buckhead Creek, Burke County, Georgia. Bishop Elliott. Macon. 

 I. C. Plant. 



Unio viridicatus. Testa laevi, suboblonga, subcompressS,, postice compressa, 

 biangulata, valde incequilaterali ; valvulis subtenuibus ; natibus prominulis, ad 

 apices rugoso-undulatis ; epidermide virescente, polita, eradiata, ; dentibus 

 cardinalibus parvis, subcompressis crenulatisque ; lateralibus prselongis, lamel- 

 latis subrectisque ; margarita coeruleo-alba et iridescente. 



Hab. Buckhead Creek, Burke County, Georgia. Bishop Elliott. 



Unio subflavus. Testd laevi, elliptica, compressa, postice subbiangulata, 

 inaequilaterali ; valvulis crassis ; natibus prominulis ; epidermide vel luteolii 

 vel luteo-castanea vel obsolete radiata vel eradiata; dentibus cardinalibus 

 parvis, subconicis, crenulatis, in utroque valvulo duplicibus ; lateralibus longis, 

 lamellatis subcurvisque ; margarita vel salmonis colore tincta vel albida et 

 iridescente. 



Hab. Walnut Creek, above Macon, Georgia. Bishop Elliott and I. C. Plant. 



Unio sudds. Testa laevi, elliptica, subinflata, postice obtuse angulata, in- 

 sequilaterali ; valvulis subtenuibus, antice crassioribus ; natibus subprominenti- 

 bus, ad apices undulatis ; epidermide luteola, valde radiata ; dentibus cardinali- 

 bus parvis, compressis, lamellatis, in utroque valvulo duplicibus ; lateralibus 

 sublongis, lamellatis subrectisque ; margarita vel alba vel salmonis colore tincta 

 et valde iridescente. 



Hab. Dry Creek, near Columbus, Georgia. Bishop Elliott. Macon. I. C. 

 Plant. 



Unio tetricus. Testa laevi, elliptica, valde compressa, postice biangulata' 

 inaequilaterali ; valvulis crassiusculis ; natibus prominulis; epidermide rugoso- 

 striatii, tenebroso-fuscata, obsolete radiata ; dentibus cardinalibus parvis, 

 conicis, in utroque valvulo subduplicibus ; lamellatis sublongis subcurvisque ; 

 margarita purpurascens et iridescente. 



Hab. Flint River, near Albany, Georgia. Bishop Elliott. 



Unio Woodwardius. Tests, laevi, triangulari, tumida, postice angulatA, ad 

 latere planiuscula, inaequilaterali ; valvulis crassis, antice crassioribus ; natibus 

 elevatis ; epidermide luteo-oliva, striata, radiis maculatis ; dentibus cardinalibus 

 parviusculis crassisque ; lateralibus percrassis, crenulatis rectisque ; margarita 

 argentea et iridescente. 



Hab. Etowah and Connasauga Rivers, Cass County, Georgia. Bishop Elli- 

 ott and Rev. G. White. 



[June, 



