NATURAL SCIENCES OF PHILADELPHIA. 83 



•15, Rufus, elytris valde depressis ; thorace angulis 



ante basin prominulis 4. amphibius Lee. 



'16, Obscure rufus, elytris valde depressis; thoracis 



angulis baud prominulis 5. depressus Lee. 



b. Elytra striis impunctatis ; 



•17, Rufo-niger, elytris subdepressis, intcrstitiis al- 



ternis multipunctatis setigeris 6. pluripanctatus Lee. 



2. Clivina lineolata Say ; Schizogenius sulcifrons Putzeys. 



3. S. ferruginous Putzeys ; Clivina sulcata Lee. 



4. Clivina amphibia Hald. ; Clivina frontalis Lee. 

 6. S. pluripunctatus Lee. ; S. simplex Lee. 



Description of Six New Species of TJNIONES from Alabama. 

 BY ISAA,C LEA. 



Unio PROPiNguns. Testa, subnodulosa, obliqua, subtriangulari, valde inaequi- 

 laterali, ad latere sulcata ; valvulis crassis, antice crassioribus ; natibus erectis, 

 tumidis ; epidermide vel lutea vel viridi, radiata ; dentibus cardinalibus sub- 

 grandibus, in utroque valvule duplicibus ; lateralibus percrassis, crenulatis, 

 curtis subcurvisque ; margarita alba et iridescente. 



Eab. Florence, Alabama, Rev. G. White and Tuscumbia, Alab., L.B. Thorn- 

 ton, Esq. 



Unio Flokentinus. Testa Isevi, elliptica, subaequilaterali, ad latere paulisper 

 l)lanulata ; valvulis crassis, antice crassioribus ; natibus tumidis, ad apices 

 undulatis ; epidermide luteo-olivacea, valde radiata; dentibus cardinalibus sub- 

 magnis, conicis, crenulatis, in utroque valvulo duplicibus ; lateralibus curtis, 

 subcurvisque ; margarita alba. 



Hab. Florence, Alabama. Rev. G. White. Cumberland River, Tenn., Drs. 

 Troostand Edgar, and T. C. Downie, Esq., St. Simon's Island. 



Unio biemarginatus. Testa Isevi, triangulari, insequilaterali, postice biangu- 

 lata, ad latere sulcata, ad basim et postice emarginata ; valvulis sub-crassis. 

 antice crassioribus ; natibus prominentibus, compressis ; epidermide rufo-fusca. 

 valde radiata ; dentibus cardinalibus parvis, valde crenulatis, sub-conicis, in 

 utroque valvulo duplicibus ; lateralibus curtis, crassis rectisque ; margarita 

 alba et iridescente. 



Hab. Florence, Alab. Rev. G. White. 



Unio mund.us. Testa laevi, obliqua, tumidii, postice subangulata, valde in- 

 aequilaterali ; valvulis crassis, antice crassioribus ; natibus valde elevatis, 

 tumidis, retrorsis ; epidermide vel lutea vel luteo-fusca, maculata ; dentibus 

 cardinalibus parvis, crenulatis, crompresso-conicis ; lateralibus ; sublongis, 

 crassis subcurvisque ; margarita alba et iridescente. 



Hab. Tuscumbia, Alab. L. B. Thornton, Esq. 



Unio Thorntonii. Testa laevi, subrotunda tumida, ad latere paulisper planu- 

 lata, ad basim compressa, valde inaequilaterali, antice ot postice rotundata; 

 valvulis crassis ; natibus valde elevatis, tumidis, retrorsis ; epidermide rufo-fusca, 

 maculata ; dentibus cardinalibus crassis crenulatisque ; lateralibus percrassis 

 subcurvisque ; margarita alba et iridiscente. 



Hhb. Tuscumbia, Alab. L. B. Thornton, Esq. 



Unio Moore.sianus. Testa laevi, subtriangalari, tumida, ad latere planulata,ad 

 basim compressa, postice subangulata, valde inaequilaterali ; valvulis crassis, 

 antice crassioribus ; natibus valde elevatis, tumidis, retrorsis ; epidermide rufo- 

 fusca, maculata ; dentibus cardinalibus crassis, obtuso-conicis, crenulatis, in 

 utroque valvulo duplicibus; lateralibus crassis subrectisque ; margarita albiet 

 iridescente. 



Hab. Tuscumbia, Alabama. H. Moores. 

 1857.] 



