FRESH WATER DIATOMS. 
303 
Diatoms from Harris’s (or Matthew’s) Cove, Kennebecasis. 
This locality precedes that of Rothesay, to be next described, 
and is about ten miles from the main St. John. It forms a 
marked indentation in the shore line and would seem to be well 
sheltered from the tidal or other currents which traverse the 
more open water outside. It is also, in contrast with the waters 
outside, of very shallow depth, and largely occupied by a dense 
growth of Potamogeton. It was just at the outer edge of this 
growth, where the water is somewhat deeper, that the remark- 
able collection already given, was obtained. No fresh water 
stream of any magnitude enters 
Diatoms from soundings of¥ 
Bacillaria paradoxa Gmel. 
Nitschia scalaris W. Sm. 
Nitschia sigma W. Sm. 
Nitschia plana. 
Nitschia circumsuta Bail. 
Nitschia bilobata W. Sm. 
Nitschia Hungarica Grun. 
Pleurosigma fasciola W. Sm. 
Pleurosigma obscurum W. Sm. 
Pleurosigma strigosum W. Sm. 
Pleurosigma macrum. ^ 
Pleurosigma tenuissimum? 
Pleurosigma strigilis W. Sm. 
Pleurosigma Balticum W. Sm. 
Pletu-osigma Spencerii W. Sm. 
Epithemia turgida W. Sm. 
Epithemia zebra Kutz. 
Epithemia musculus. 
Melosira nummuloides Ktz. 
Melosira Borrerii. 
Melosira Jerghensii vat. octogonia 
Grun. 
Amphipleura sigmoidea W. Sm. 
Cocconeis Placentula Ehr. 
Cocconeis scutellum Ehr. 
Surirella striatula Turp. 
Surirella ovata Kutz. 
the cove. 
Rothesay, Kennebecasis Bay: 
Surirella Brightwellii W. S. 
Raphoneis (Doryphora) amphiceros 
Ktz. 
Raphoneis (Doryphora) Boeckii W. 
Sm. 
Amphiprora alata Kutz. 
Amphiprora lepidoptera? Bail. 
Acnanthes subsessilis Ktz. 
Actinoptychus sub tills. 
Navicula radiosa. 
Navicula elegans. 
Navicula pelagi. 
Navicula Smithii var. ovalis. 
Navicula maculata Bail. 
Navicula longa. 
Tryblionella scutellum? W. S. 
Campylodiscus cribrosus W. S. 
Tabellaria flocculosa Kutz. 
Synedra. 
Stauroneis phoenicenteron Ehr. 
Coscinodiscus minor? Ehr. 
Cymatopleura scutellum. 
Pinnularia viridis W. S. 
Cocconema lanceolatum Ehr. 
Gomphonema. 
Amphora ovalis var. gracilis Ehr. 
Plagiotropis vitrea Grun. 
