78 Cockerell — Nomenclature of the Hydromedusas. 



Tribe Trichorhizini. 



Trichorhizci R u ssell . 



brunnea Russell. 

 Tribe Steenstmpiini. 

 Steendrvpia Forbes. 



rubra Forbes. 

 Hybocodon L. Ag. 



prolifer L. Ag. 

 Microcampana Fewkes. 



conica Fewkes. 

 Tribe Dicodoniini. 



Dicodon iurn Haeck . 



cornutum Haeck. 

 Tribe Sarsiini. 



Sarsia Lesson. 



tubvlosa Lesson. 

 Moerisia Ron] en g. 



lyonsi Bouleng. 

 Hyi Irichth ys Fewkes. 



mirus Fewkes. 

 Eucodonium Hartlaub. 



brownei Hartlaub. 

 Ectopleura L. Ag. 



dumortieri (Van Rened.). 

 Linvillea Mayer. [Corynitis McCrady, 

 preocc.] 



agassizii ( McCrady ) . 

 Dipurena McCrady. [Slabberia Forbes, 

 preocc . ] 



strawgidata, McCrady. 



Subf. Margelopsin^e. 



Margelopsis Hartlaub. 



haeckelii Hartlaub. 

 Pelagohydra Dendy. 



mirabilis Dendy. 



Fam. Cladonemid^;. 



Subf. Pteronemin^. 



Zanclea Gegenbaur. 

 codata Gegenbaur. 



