DIATOMACEAE. 337 
Navicula inflata, Kutz. 
Navicula Amphisbaena, Bory. 
Generally distributed and common. Var. 2, Sm. Pool near 
Fort Doyle, frequent. Pulias pool, less common. 
Navicula pusilla, Sm. 
Navicula cryptocephala, Kutz. 
Common, often abundant, on stones over which water trickles. 
Navicula dicephala, Ehr. 
Navicula lacustris, Greg. 
Navicula humerosa, Breb. 
This species has occurred in most of my coast gatherings, but 
very sparingly : seldom more than two or three specimens in each. 
Navicula granulata, Breb. 
One valve in a mixed gathering from the Salerie. 
Navicula latissima, Greg. 
Navicula punctulata, Sm. 
Common in the brackish pool at Pulias. 
Navicula crassinervia, Breb. 
Saints Bay Valley, common. 
Navicula didyma, Ehr. 
More or less common in all the coast gatherings. Var. 6 
(sporangial, of Smith). Single valves at Saints Bay, Cobo, and 
Perelle. Var. y, Greg. On several parts of the coast, but sparingly. 
Plentiful in the Cobo peat deposit. 
Navicula incurvata, Greg. 
Navicula Musca, Greg. 
Navicula Bombus, Kutz. 
A few specimens in the Cobo gatherings, and a few at Perelle Bay. 
Navicula Pandura, Breb. 
Rather common and generally distributed. 
Pinnularia nobilis, Ehr. 
Grande Mare bog-pools, not uncommon. Marsh on the east 
side of Lancresse, fragments only. Broken specimens occur in 
the Cobo peat. 
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