180 



ADDITIONS TO THE CABINET. 



A large collection of Shells, principally from the Maranec Ri- 

 ver, was presented by Dr. B. B. Brown, of St. Louis, and the 

 thanks of the Society were voted to the donor. 



November 4, 1846. 

 Dr. Gould vv^as chosen Chairnnan. 



Dr. Storer^communicated the following notes : 



*' In September last, a specimen o^ Palinurus perciformis was 

 found in our harbor. This is the first specimen I have known 

 to be taken north of Cape Cod." 



" A specimen of Epeira was found by my son, Hora- 

 tio Storer, at Cambridge, on the 27th September. Hentz men- 

 tions only North Carolina as its habitat. It agrees most perfectly 

 with Hentz's figure." 



Dr. Gould gave descriptions of the follow^ing species of 

 ViTRiNA, from the collection of the Exploring Expedition. 



ViTRiNA RuivENSis (CouTHouY MS.) Tcsta haliotiforrr iS, 

 transverse subquadrata, depressa, papyracea, pellucida, nitida, 

 chlorata, gradibus setatis striata : spira vix conspicua, anfr. uno 

 rapide crescente ; apice laterali : apertura faciem inferiorem ade- 

 quans ; labro prope spiram membranaceo ; columella laxe intro 

 spiram volvente et earn penitus exhibente. Lat. |^, alt. ^V po^'- 

 Hah. Madeira, near the summit of Pico de Ruivo, 6210 feet al- 

 titude. A very large and well-marked species. 



ViTRiNA NiTiDA. Tcsta deprcsso-globosa, heliciformis, tenu- 

 issima, pellucida, nitidissima, laevigata, succineo-viridis, imperfo- 

 rata : spira anfr. 4 convexis, ultimo amplo ; apice subcentrali, 

 prominente ; sutura excavata : apertura transversa, subcircula- 

 ris ; peristomate inflexo ; columella arcuata, usque ad apicem 

 perspicua. Diam. -^^^ alt. -^^ poll. Hob. Madeira, Roche de 

 Empena, 4240 feet elevation. A most elegant and brilliant 

 species. 



