FRESH WATER DIATOMS. 
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3. Diatoms from mud of St. John River at Ingleside : 
Navicula Smithii var. ovalis. 
Synedra ulna Ehr. 
Synedra pulchella Ktz. 
Melosira varians Ag. very com. 
Melosiia nummuloides Kutz. 
Melosira Boierii rare. 
Doryphora Boeckii W. Sm. 
Amphiprora alata Kutz. 
Acnanthes subsessilis Kutz. 
Navicula Smithii var. ovalis. 
Navicula maculata Bail. 
Epithemia turgida Ehr. 
Doryphora Boeckii W. Sm. 
Stauroneis. 
Coscinodiscus. 
Cymatopleura? 
Odontidium mutabile W. Sm. 
Himantidium arcus W. Sm. 
Cocconema lanceolatum Ehr. 
Cymbella cuspidata Kutz. 
Surirella ovata Kutz. 
Campylodiscus cribrosus W. Sm. 
Amphipleura pellucida Kutz. 
Pinnulaiia viridis Ktz. 
Tabellaria fenestrata Kutz. 
Tryblionella scutellum W. Sm. 
Nitschia bilobata W. Sm. 
Diatoms from mud at head of the iMilkish : 
Actinoptychus undulatus. 
Coscinodiscus. 
Cocconeis Placentula Ehr. 
Cocconeis pediculus Ehr. 
Cocconeis scutellum Ehr. 
Cyclotella compta? 
Cyclotella Kutzingiana? 
Doryphora Boeckii Sm. 
Doryphora amphiceros Kutz. 
Epithemia musculus Kutz. 
Epithemia turgida Ehr. 
Epithemia zebra Ehr. 
Eunotia diodon Ehr. 
Encyonema? 
Cymbella. 
Himantidium arcus W. Sm. 
Melosira nummuloides Kutz. 
Melosira varians Ag. 
Melosira subflexilis? Kutz. 
Navicula Smithii var. ovalis. 
Amphiprora alata Kutz. 
Pinnularia mesolepta Ehr. 
Pinnularia viridis Ktz. 
Nitschia closterimn W. Sm. 
Nitschia sigma? W. Sm. 
Nitschia linearis W. Sm. 
Gomphonema cristatum Ralfs. 
Cocconema lanceolatum Ehr. 
Tabellaria flocculosa Kutz. 
Tabellaria fenestrata Kutz. 
Surirella splendida Kutz. 
Surirella ovata Kutz. 
Rhizosolenia. 
Stauroneis phenicenteron Ehr. 
Zygoceros. 
Synedra arcus Kutz. 
Pleurosigma angulatum W. Sm. 
Pleurosigma Balticum W. Sm. 
Of the above forms Cyclotella Kutzingiana, and Navicula 
clostcrium have brackish water affinities, while Rhabdoncma and 
Rhizosolonia^ if correctly referred, are decidedly marine. In 
addition to Diatoms a Foraminifer and an Infusorian 
(Distephanus speculum) were observed here, both common to 
the Bay of Fundy. 
