130 THREE CRUISES OF THE “BLAKE.” 
ctenophores is the well-known Hucharis multicornis (Fig. 424), 
also found in the Mediterranean. This genus, which had before 
escaped observation on this side of the Atlantic, was observed at 
the Tortugas and at Key West. 
Among the meduse called Discophore by Agassiz, one of 
Vj iti 
Fig. 424, — Eucharis multicornis. 4. (Chun.) 
the most interesting forms is Dodecabostrycha dubia (Fig. 
425), the largest specimen measuring no less than nine. inches 
in height. Several specimens of a dark claret-color were brought 
up in the trawl, and it is very probable, from the systematic 
affinities of this medusa, that, like its allies, the Rhizostome, it 
lives on the bottom, rarely coming to the surface. Belong- 
ing also to the true deep-sea meduse are Periphylla, Atolla, 
and a few allied genera. The first genus has a more or less 
