MADREPOEAEIA OF THE DEEP SEA. 307 



Genus Desmophyllum. 



Species Dermophyllum crista-galli, Ed. &. H. 



Varieties (old species) : a. cumingi, /3. costatum. 

 Genus Flabellum. 



Species 1. Flabellum distinctum, Ed. & H. 

 Syn. Flabellum extenmm, Mich. 



Species 2. Flahellwm laciniatum, Ed. & H. 

 Syn. Ulocyathus arcticus, Sars. 



Genus Rhizotrochus. 



Species 1. BMzotrochus affinis, Duncan. -^ 



Division Gemmantes. 

 Genus Amphihelia. 



Species 1. Amphihelia oculata, Linnaeus, sp. 

 2. 7'amea, Miiller. 



Syn. Amphihelia miocanica, Seguenza. 



sculpta, Seguenza. 



atlantica, nobis. 



ornata, nobis. 



Diplohelia profunda, Pourtales. 



meneghiniana, Seguenza. 



doderleiniana, Seguenza. 



gismondiana, Seguenza. 



Family AstrseidSB. 



Division Euphtlliace^. 



Section Eufhtlliace^ cjespitos^. 

 Genus Solenosmilia, gen. nov. 

 Species 1. Solenosmilia variabilis, Duncan. -- 



Division STTLINACEiE. 



Section SttlinacEjE independentes. 



Genus Lophohelia. 



Species 1. Lophohelia prolif era, Pallas, sp. 



Syn. Lophohelia anthophyllites, Ellis & Solander. 

 subcostata, Ed. & H. 



