95 



Mycetopus siliquosa, Unio obtusus, Bulimus auris-muris, B. Ca- 

 [.ueira, B. Bahiensis, Cyclostoma hetianum, Helicina varia- 



bilis, Anodonta anserina, all from Brazil. From Dr. A. A. Gould. 



January 4. 18 13. 



Dr. Gould was appointed Chairman. 



Mr. E. S. Dixwell exhibited some specimens of lias lime- 

 stone from Meadville, Pa., in which were imbedded some 

 conical masses of about an inch in height, and somewhat 

 less at base. 



He desired an opinion whether they were organic structures or 

 otherwise. They were committed to Mr. Bouve. 



Dr. Abbot made a report upon some of the birds' skins 

 recently received from Dr. Cragin of Surinam. There 

 were five species, all new to our cabinet, viz. 



Rhamphastos Tucanus, Lin. 

 Rhamphastos viridis, Lin. 

 Rhamphastos piperivorus, Lin. 



Rhamphastos erythrorynchus, L. 

 Rhamphastos aricari, Lin. 



Dr. A. also exhibited some skins of native birds recently added 

 to the Cabinet, viz. 



Tringa alpina — Oxbird, (winter plumage.) 

 Sylvia icterocephalus — Chesnut-sided warbler, (male.) 

 Sylvia Americana — Parti-colored warbler, (male.) 

 Sylvia Canadensis — Black-throated blue warbler, (male.) 

 Sylvia trichas, Maryland yellow-throat, (male and female.) 

 Sylvia rubri-capilla — Nashville warbler. 



Professor Gray exhibited a specimen of Car ex Fraseri- 

 a?ia, an American plant, which had been so long unnoticed 

 as to have been regarded as lost. It was rediscovered by 

 a party of which Prof. G. was one, on Grandfather Moun- 

 tain, North Carolina. 



Dr. Wyman exhibited specimens of Eckinorynchus nodo- 

 stiS, Rudolphi, a parasite infesting the intestines of the 

 striped bass. {Labrax lineatus.) 



