144 [August, 



August 19th. 

 Mr. Cassin in the Cliair. 



Mr. Cassin presented a paper entitled, "Descriptions of New Species 

 of African Birds in the Museum of the Academy of Natural Sciences 

 of Philadelphia, collected by Mr. P. B. Duchaillu in Equatorial 

 Africa. By John Cassin." Referred to a Committee consisting of 

 Drs. Wilson, Morris and Rand. 



Mr. Cassin also announced the reception of a collection of Mammals, 

 Birds and Shells from Mr. P. B. Duchaillu, who had begun his labors 

 in Western Africa. 



August 2Qth. 



Vice President Bridges in the Chair. 



The Committees on Mr. Lea's paper, read July 8th; on Major 

 Le Conte's paper, read July 15th ; on Dr. Hallowell's papers, read 

 August 5th ; and on Mr. Cassin's paper, read August 19th, severally 

 reported in favor of publication in the Proceedings. 



Description of Fifteen new species of Exotic Melaniana. 

 By Isaac Lea. 



Melania Verreauiana. Testa laevi, pyramidata, crassa, tenebroso-castanea, 

 spira valde elevata ; suturis linearibus ; anfractibus planulatis ; apertura sub- 

 grandi, ovata, intus paulisper brunnea ; columella alba incurvaque. 



Hab. Sandwich Islands. M. E. Verreau, Paris. 



Melania fraterna. Testa plicata, pyramidata, subcrassa, tenebroso-brunnea ; 

 spira elevata; suturis irregulariter impressis ; anfractibus subplauulatis, trans- 

 versim lineis impressis, regulariter cinctis, costellis verticallibus ; apertura parva, 

 subovata, intus albida ; labro acuto ; columella contorta, superne incrassata, 

 inferne subemarginata. 



Hab. . 



Melania Hainesiana. Testa Isevi, pyramidata, subtenui, corned ; spira sub- 

 elevata ; suturis linearibus, impressis ; anfractibus planulatis, in medio angu- 

 latis ; apertura subgrandi, subrhomboidea, ad basim angulata, intus coeruleo- 

 albida ; labro acuto, angulato ; columella albida tortaque. 



Hab. India. W. A. Haines, New York. 



Melania Housei. Testa laevi, acuto-conoidea, tenui, cornea, flammis longitu- 

 dinalibus ferrugineis ornata ; spira subelevata ; acuminata, suturis impressis, 

 canaliculatisque ; anfractibus planulatis, instar duodecim ; apertura parva, 

 ovata, intus albida ; columella alba tortaque. 



Operculo tenebroso-fusco. 



Hab. Korat, Takrong River, Siara. S. R. House, M. D. 



Melania Ningpoensis. Testa perplicata, striis transversis crebris decussata? 

 conoidea, tenui, pallida cornea, subdiaphana ; spira subelevata ; suturis valde 

 impressis ; anfractibus instar novem, subconvexis, inferne transversim costatis ; 

 .apertura parva, subrotundata, intus alba ; columella alba. 



Operculo tenui, pallido-corneo. 



Hab. Ningpo, China. S. R. House, M. D. 



