NATURAL SCIENCES OF PHILADELPHIA. 331 



" Prodromus Descriptions Animalium evertebratorum, quoe in Expe- 

 ditione ad Oceanum Pacificura septentrionalem, a Republica federata 

 missa, Cadwaladaro Ringgold et Johanne Rodgers ducibus observavit et 

 descripsit W. Stimpson : pars vii., Crustacea Macrura." 



" Catalogue of the Venomous Serpents in the Museum of the Aca- 

 demy, with notes on the Families, Genera and Species, by E. D. Cope." 



And were referied to Committees. 



Dec. 27th. 



Mr. Lea, President, in the Chair. 



Fifty-five members present. 



On report of the respective Committees, the paper entitled 

 " Descriptions of Exotic Unionidae, by Isaac Lea," was ordered to be 

 published in the Journal. 



And the following in the Proceedings : 



Descriptions of Three New Species of Exotic Union.es. 



BY ISAAC LEA. 



Unio wynegungaensis. Testa, laevi, elliptica, inflata, insequilaterali. postice 

 subbiangulata, antice oblique rotundata ; valvulis subcrassis, antice crassiori- 

 bns ; natibus prominentibus, ad apices valde divaricate undulatis ; epidermide 

 luteo-oliva, micante, obsolete radiata.: dentibus cardinalibus subcrassis, sub- 

 erectis, valde creriulatis, in utroque valvulo duplicibus ; lateralibus sublongis, 

 crassis subrectisque : margarita, salmouis colore paulisper tincta et iridescente. 



llab. Wynegunga River, 30 miles east of Nagpoor, iu the Deccan, Bengal. 

 C. M. Wheatley. 



Unio c.onsobrinus. Testa, lsevi, elliptica., subinflata, ineequilaterali, postice 

 obtuse angulata, antice rotundata ; valvulis subtenuibus, antice paulisper crassi- 

 usculis ; natibus prominulis ; epidermide micante, teuebroso-fusca, eradiata ; 

 dentibus cardinalibus parvis, crenulatis, compressis, obliquis, in valvulam dex- 

 tram duplicibus; lateralibus longis, lamellatis subcurvisque ; margarita sal- 

 monis colore tincta et valde iridescente. 



Hab. China. C. M. Wheatley. 



Unio nagpoorensis. Testa, laevi, subtriangulari, subinflata, inaequilaterali, 

 postice biangulata, antice rotunda; valvulis subtenuibus, antice crassioribus ; 

 natibus prominentibus, epidermide rufo-fusea, striata, eradiata, dentibus cardi- 

 nalibus parvis, compressis, obliquis, crenulatis, in utroque valvulo duplicibus; 

 lateralibus longis, lamellatis curvisque; margarita salmonis colore paulisper 

 tincta et iridescente. 



Hab. Ambajiri Tank, Nagpoor, Bengal. C. M. Wheatley. 



Notice of the Shells collected by Mr. J. Xantus, at Cape St. Lucas. 



BY P. P. CARPENTER. 



The Mollusca of the Cape, forwarded by Mr. Xantus, are shore shells, mostly 

 dead. They are, however, singularly free from ballast and other usual ad- 

 mixtures, one specimen only being foreign to the American shores. They 



1859.] 



