83 



Melania imprcssa. Testa, transverse et crebissime sulcata, fusif'ormi, crass&, 

 rufo-fusca; spira obtusa; suturis impressis; anfractibus scnis, planulatis; 

 apertura elliptica sub-grandi, ad basim angulata, intus alba. Halt. Coosa 

 River, Alabama.— Prof. Brumley. 



Melania robusta. Testa striata, fusiformi, crassa, lutcola; spira obtusa; su- 

 turis subimpressis; anfractibus senis, subconvexis; apertura elliptica, magna, 

 ad basim angulata, intus alba. Hab. Coosa River, Alabama.— Prof. Brumley. 



Melania Jayana. Testa tuberculata, subfusiforrni, crassa, pallido-cornea ; 

 spira exerta; suturis linearibus, curvatis; anfractibus subconvexis, medio im- 

 pressis, tuberculorum duplici serie cinctis ; columella incurvata, supernd in- 

 crassata ; apertura formam trapezii habente, intus albida. Hab. Cany Fork, 

 De Kalb Co. Tenn.— Dr. Troost. 



Anculosa rubiginosa. Testa ovato-gibbosa, crassa, lasvi, rubiginosa ; spira 

 subelevata; suturis impressis; anfractibus planulatis; apertura enormiter 

 ovata, intus albida; columella crassa, tenebroso-purpurea.. Hab. Warrior 

 River, Alabama. — Prof. Brumley. 



Anculosa bella. Testa sub-globosa, subtenui, superne tuberculata, fasciata, 

 virido-fusca ; spira brevi; suturis linearibus, anfractibus ternis, convexis; 

 apertura subrotunda, intus ccerulea; columella, maculata. Hab. Warrior 

 River, Alabama. — Prof. Brumley. 



Anculosa Grifjitliiana. Testa ovato-gibbosa, crassa, crebre et transverse 

 striata, fasciata; suturis impressis; anfractibus quaternis, planulatis; apertura 

 ovata, intus fasciata; columella crassa, tenebroso-purpurea. Hab. Coosa 

 River, Alabama. — Prof. Brumley. 



Anculosa tuberculata. Testa ovata, crassa, superne tuberculata, fusca; spira 

 brevi; suturis vix impressis; anfractibus subconvexis; apertura ovata, intus 

 carnea ; columella crassa, maculata. Hab. Warrior River, Alabama. — Prof. 

 Brumley. 



Valvata bicarinata. Testa orbiculari, superne planulata, bicarinata, sub- 

 crassa, superne cornea, inferne albida, late umbilicata ; suturis impressis; spira 

 depressa; anfractibus quaternis, convexis; apertura rotunda, intus albida. 

 Hab. Schuylkill River, west side, below Permanent Bridge. — H. C. Lea. 



Paludina angulata. Testa inflata, tenui, fusca, superne subvaricosa, inferne 

 transverse et minute striata, minute perforata; spira breviuscula, ad apicem 

 tenebrosa; suturis impressis; anfractibus quinis, in medio angulatis; apertura. 

 magna, sub-triangulata, intus subrubiginosa. Hab. Coosa River, Alabama. — 

 Prof. Brumley. 



Paludina Coosaensis. Testa sub-globosa, tenui, pallida, sub-ltevi, perforata; 

 spira brevi ; suturis valde impressis ; anfractibus quinis, rotundis ; apertura 

 magna, subrotunda, intus albida. Hab. Coosa River, Alabama. — Professor 

 Brumley. 



Paludina cyclostomaformis. Testa subcylindracea,subcrassa, pallido-cornea, 

 Isevi, imperforata; spira exerta, ad apicem rosea, obtusa; suturis valde impres- 

 sis; anfractibus quinis, rotundatis; apertura parva, subrotunda, intus salmonis 

 colore tincta. Hab. Coosa River, Alabama. — Prof. Brumley. 



Professor Bache communicated some recent observations of 

 the Magnetic Dip, made at Baltimore by M. Nicollet and by 



