628 DIATOMEAE. 



SYNEDRA Ehrenb. 



Synedra Gailldnii minor Kiitz. Local. 

 Synedra superba minor Kiitz. Eare. 

 Synedra undulata Bailey. Eare. 



COCCONEIS Ehreub. 

 Cocconeis Scutellum Ehrenb. Common. 



AMPHORA Ehrenb. 



Amphora obtusa Greg. Occasional. 

 Amphora bigibba Grun. 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 Lend. 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. Eare. 



TRACHYNEIS Cleve. 

 Trachyneis aspera (Ehrenb.) Cleve. Eare. 



PINNULARIA Ehrenb. 

 Pinnularia rectangulata Greg. Eare. 



PLEUROSIGMA W. Smith. 

 Pleurosigma formosum W. Smith. Eare. 



