Descriptions of Five New Species of TJNIONES from North Alabama 

 BY ISAAC LEA. 



[Read March 20th, I860.] 



U.vio pddicus. — Testa ltevi, subtrigona, compressa, inaequilaterali, postice 

 obtuse angulata, antice rotunda ; valvulis subcrassis, antice crassioribus ; na- 

 tibus prominulis, ad apices rugoso-undulatis; epidermide luteo-fusca, micante, 

 virido-radiata ; dentibus cardinalibus crassiusculis, erectis, compressis crenu- 

 latisque ; lateralibus subcurtis, crassis subcurvisque ; margarita alba et irides- 

 cente. 



Hab. — North Alabama, Prof. Tuomey; and Florence, Alabama, L. B. Thorn- 

 ton, Esq. 



Unio camelopardilis. — Testa lasvi, oblonga, subinflata, inaequilaterali, postice 

 obtuse biangulata, antice regulariter rotundata ; valvulis subtenuibus, antice 

 crassioribus ; natibus prominulis, ad apices rugoso-undulatis ; epidermide 

 lutea, polita, nndique virido-maculata; dentibus cardinalibus parvis, erectis, 

 compresso-pyramidatis crenulatisque ; lateralibus longis, lamellatis subrectis- 

 qne ; margarita luteo-alba et valde iridescente. 

 Hab. — North Alabama, Prof. Tuomey. 



Unio fucatus. — Testa, lasvi, elliptic!!, subinflata, valde inaequilaterali, postice 

 subbiangulata, antice rotundata; valvulis tenuibus, antice paulisper crassiori- 

 bus ; natibus prominulis, ad apices undulatis ; epidermide olivo-lutea, micante, 

 undique virido-maculata ; dentibus cardinalibus parvis, compresso-conicis, cre- 

 nulatis, in utroque valvulo duplicibus ; lateralibus longis, lamellatis subcur- 

 vi3que; margarita. vel caerulea vel luteo-albd et valde iiidescente. 



Ifab. — North Alabama, Prof. Tuomey. Tuscumbia, L. B. Thornton, Esq. 



Unio discbepans. — Testa, laevi, elliptica, subinflata, ad latere subplanulata, 

 valde injeqnilaterali, postice obtuse biangulata, antice rotundata ; valvulis 

 3ubtenuibus, antice crassioribus ; natibus prominulis; epidermide luteo-oliva, 

 micante, radiata ; dentibus cardinalibus parvis, compresso-conicis crenulatis- 

 que ; lateralibus longis, lamellatis subcurvisque ; margarita vel alba vel pur- 

 purea et valde iridescente. 



Hab. — North Alabama, Prof. Tuomey. 



