302 
lU'LLKTlX OF THE NATURAL HISTORY SOCIETY. 
Yarioiis stations upon the St. John River, it will, to some extent 
at least, be seen what species are capable of thriving alike in 
pure salt water and in that which is partly or greatly freshened. 
We now proceed to give the Second or Kennel)ecasis Series. 
T. l^iatoms from Perry’s Point, Kennebecasis. 
At tliis point, about twenty miles distant from the outlet 
of the river, and about fifteen from the Narrows, the Kenne- 
becasis rapidly shallows, and, except for a small channel, is 
largely occupied by a growth of Potamogcton. In these respects 
it nearly resembles the conditions at the mouth of the Nerepis, 
and, as will appear from the following list, manv of the Diatoms 
found are common to the 
appreciable. 
Amphipleura pellucida Kutz. 
Amphiprora alata Kutz. 
Epithemia turgida W. Sm. 
Epithemia argus W. Sm. 
Pinnularia major Ktz. 
Pinnularia viridis Kutz. 
Nitschia closterium W. Sm. 
Nitschia scalaris W. Sm. 
Nitschia sigmoidea W. Sm. 
Surirella splendida Kutz. 
Surirella linearis W. Sm. 
Campylodiscus cribrosus W. Sm. 
Tryblionella gracilis? W. Sm. 
Diatoms from Saunder's 
two. The salinity here is barely 
Stauroneis phoenicenteron Ehr. 
Pleurosigma. 
Navicula Smithii var, ovalis. 
Synedra ulna Ehr. 
Amphora ovalis Kutz. 
Melosira varians Ag. 
Tabellaria flocculosa Kutz. 
Cocconeis scutellum Ehr. 
Cocconeis placentula Ehr. 
Doryphora (Raphoneis) Boeckii. 
Cocconema lanceolatum Ehr. 
Odontidium. 
Himantidium arcus VV. Sm. 
Cove, Kennebecasis : 
Campylodiscus cribrosus W. Sm. 
Eunotia diodon Ehr. 
Synedra pulchella Kutz. 
Synedra ulna Ehr. 
Cocconema lanceolatum P2hr. 
Doryphora (Raphoneis ) Boeckii W. 
Himantidium. 
Surirella splendida Kutz. 
Surirella Molleriana. 
Coscinodiscus radiatus. 
Gomphonema acuminatum Ehr. 
Gomphonema sp? 
Amphora ovalis Kutz. 
Pinnularia viridis W. Sm. 
Pinnularia mesolepta Ehr. 
Tabellaria fenestrata Kutz. 
Fragillaria. 
S. Nitschia lineatis W. Sm. 
Nitschia biiobata W. Sm. 
Epithemia turgida W. Sm. 
Cocconeis scutellum Ehr. 
Melosira subflexilis -Kutz. 
Pleurosigma. 
