24 



N. radiosa kin/. 



Frequent throughout the island. 

 N. rhyncocephala Kiitz. 



Kings : Prospect Park, Brooklyn Water Supply. 

 N. varians ( ireg. 



Kings : Prospect Park. 

 N. viridis Kiitz. 



Frequent throughout the island. 



STAURONEIS Ehrb. 



S. acuta W. Sin. 



Kings : Coney Island, Woodman. 

 S. anceps Ehrb. 



Kings : Prospect Park, Brooklyn Water Supply. 

 S. gracilis Ehrb. 



Queens : Sag Harbor. 

 S. birostris Ehrb. 



Queens : Arverne, Edwards. 

 S. aspera (Ehrb.) Kiitz. 



Queens : Arverne, Edwards. 

 S. Phoenicenteron Ehrb. 



Kings : Coney Island, Woodman. 



PLEUROSIGMA VY. Sm. 

 P. angulatum W. Sm. 



Queens : Rockaway Beach, Arverne, Edwards. 



P. Balticum W. Sm. 



Not infrequent in salt marshes throughout the island. 

 P. elongatum W. Sm. 



Kings : Bay Ridge, Coney Island, Woodman. 

 P. Spencerii YV. Sm. 



Brooklyn Water Supply. 



SCOLIOPLEURA Grun. 

 S. tumida (Breb. ) Rab. 



Queens : Arverne, Edwards. 



AMPHIPRORA Ehrb. 

 A. elegans \V. Sm. 



Queens : Arverne, Edwards. 

 A. navicularis Ehrb. 



Queens : Arverne, Edwards. 

 A. ornata Bail. 



Kings : Prospect Park, Brooklyn Water Supply. 

 A. pulchra Bail. 



Queens : Arverne, Edwards. 



