Buthograptua Hall (alga). 



Callithamnopsis "Whitfield (alga). 



Chaetocladus Whitfield (alga). 



Corematocladua Ruedemann (alga). 



Cryptozoon Hall (alga). 



Girvanella Nicholson and Etheridge (alga). 



Nematophycus Carruthers. 



Oldhamia Forbes (alga?). 



Peronosporites Smith. 



Phytopsis Hall 



Primicorallina Whitfield (alga). 



Protostigma Lesquereux. 



Sphoerococcites Sternberg. 



Solenopora Billings (alga). 



Sphenophyllum Koenig. 



Sphenophycus Ruedemann (alga). 



Wingia Seely (possibly algal in part). 



See also under Sponges for other possible algae. 



"FUCOIDS. 



Arthraria Billings. 

 Blastophycus Miller and Dyer. 

 Boliviana Salter. 

 Buthotrephis Hall. 

 Chondrites Sternberg. 

 Cruziana D'Orbigny. 

 Dactylophycua Miller and Dyer. 

 Discophyctia Waleott. 

 ?Diseophyllum Hall. 

 Dystactophycus Miller. 

 Heliophycus Miller and Dyer. 

 Ichnophycus Hall. 

 Licrophycus Billings. 

 Lockeia James. 

 Palseophycus Hall. 

 Rusophyeus Hall. 

 Tnchophycus Miller and Dyer. 



BIOLOGICAL CLASSIFICATION. 1427 



PLANT KINGDOM. 



AIXiJE, etc. 



