249 



Schizonema 



— Bryopsis 



— molle 



— nebulosum 



— ramossissimum . . . . 



— tenue 



Scoliotropis 



— latestriata 



Staaroneis 



— acuta 



— anceps 



— constricta 



— Gregorii 



— Legnmen 



— parvula promin. . . 



— Phoenicenteron .... 



— salina 



— Smithii 



Stephanodiscas 



— Astræa 



— Hantzschianus .... 



Striatella 



— delicatula 



— interrupta 



— unipunctata ..... 



Surirella 



— hiseriata 



— Brightwellii 



— delicatissima 



— elegans 



— fastiiosa 



— Gemma 



26 



26 



14 



12 



17 



14 



m 



6 2 

 5 



10 



