628 DIATOMEAE. 



SYNEDRA Ehrenb. 



Synedra Gaillonii minor Kiitz. Local. 

 Synedra superba minor Kiitz. Eare. 

 Synedra undulata Bailey. Eare. 



COCCONEIS Ehrenb. 

 Cocconeis Scutellum Ehrenb. Common. 



AMPHORA Ehrenb. 



Amphora obtusa Greg. Occasional. 

 Amphora bigibba Grim. Eare. 



MASTOGLOIA Thw. 



Mastogloia angulata Lewis. Common. 



Mastogloia apiculata W. Smith. Common. 



Mastogloia asperula Grun. Not common. 



Mastogloia bahamensis Cleve. Not common. 



Mastogloia binotata (Grun.) Cleve. Eare. 



Mastogloia Citrus 'Cleve. Common. 



Mastogloia cocconeiformis (Grun.) Cleve. Common. 



Mastogloia cuspidata Cleve. Common. 



Mastogloia delicatula Cleve. Not common. 



Mastogloia erythraea Grun. Common and variable. 



Mastogloia lanceolata Thw. Common. 



Mastogloia lemniscata Leud. Eare. 



Mastogloia minuta Grev. Common. 



Mastogloia rimosa Cleve. Eare or local. 



Mastogloia Smithii Thw. Common. 



Mastogloia splendida (Greg.) Cleve. Common and variable. 



DICTYONEIS Cleve. 

 Dictyoneis jamaicensis Cleve. Eare. 



DIPLONEIS Ehrenb., em. Cleve. 



Diploneis vacillans (A. Schmidt) Cleve. Eare. 

 Diploneis Weissflogii (A. Schmidt) Cleve. Eare. 



NAVICULA Bory. 



Navicula brasiliensis Grun. Eare. 

 Navicula Lyra dilatata A. Schmidt. Eare. 

 Navicula ramosissima (Ag.) Cleve. Local. 

 Navicula suborbicularis (Greg.) Donkin. Eare. 

 Navicula Zostereti Grun. Bare. 



TRACHYNEIS Cleve. 

 Trachyneis aspera (Ehrenb.) Cleve. Eare. 



PINNUIiARIA Ehrenb. 

 Pinnularia rectangulata Greg. Eare. 



PLEUROSiGMA W. Smith. 

 Pleurosigma formosum W. Smith. Eare. 



