10 



MICROSCOPICAL OBSERVATIONS. 



Amoeba princeps, Ehr. 

 Arcella vulgaris, Ehr. 

 " dentata, Ehr. 

 Epistylis anastatica, Ehr. 



iHrnsoRiA. 



Hydatina senta, Ehr. 

 Rotifer vulgaris, Schr. 

 Scaridium longicaudum, Ehr. 

 Stentor polymorpha, Ehr. 



HAZARD S BACK CREEK, NEAR GRAHAMVILLE, S. C. 



In the floating scum of this salt water creek, at Mr. Bolen's Landing, the fol- 

 lowing Diatomacese were detected : — 



Amphiprora alata, Ehr. 

 Amphora libyca, Ehr. 

 Bacillaria paradoxa, Ehr. 



Coscinodiscus subtilis, Ehr. 

 Navicula Baltica, Ehr. 

 Pinaularia interrupta, Ehr. 



The following Alga? were also found at the same place, viz : 



Delesseria Leprieurii, Mont. Ectocarpus littoralis, Lyngb. 



BRYAN COUNTY, GA. 



nd February, 1850. — In 

 way, on the road from Savannah' 

 among the roots of Utricularia 

 profusion. 



Desmidieye. 

 Ankistrodesmus falcatus, Corda. 

 Arthrodesmus convergens, Ehr. 

 Closterium acerosum, Schr. 



" Ehrenbergii, Menegh, 



" Leiblenii, Kg. 



" setaceum, Ehr. 



Didymoprium Borreri, Balfs. 

 Docidium Ehrenbergii, Ralfs. 



" nodulosum, Breb, 

 Euastrum rostratum, Ralfs. 

 Micrasterias americana, Ralfs, 



" denticulata, Breb. 



" incisa. Kg. 



" rotata, Ralfs. 



ditches by the side of the Ogeechee Cause- 

 ►to Darien, I noticed the following species 

 verticillata, which grows here in great 



DlATOMACE^. 



Himantidium arcus, Ehr. 

 Tabellaria flocculosa, Ehr, 



Infusoria. 

 Arcella dentata, Ehr. 



" vulgaris, Ehr. 

 Euglena pleuronectes, Ehr. 

 Euplotes charon, Ehr. 

 Rotifer vulgaris, Schr. 



" macrurus, Ehr. 

 Stentor polymorpha, Ehr. 

 Synura uvella, Ehr. 



Algve. 

 *Aporea ambigua, B. (PL 3, fig. 3.) 

 Bulbocheete setigera, Ag. 

 Coleochcete scutata, Breb. 



At the same locality, Hydrocharis spongiosa, Riccia fluitans, and a species of 

 AzoUa, occur abundantly. 



