MUSEUM OF COMPARATIVE ZOOLOGY. 



501 



The only Discophores sent me are Periphyttia hyacinthina, Steen., and 

 an unknown genus of the Pelagidse. Three new hydroids represented 

 by several specimens were found. The whole material upon which my 

 observations were made is as follows.* 



Surface. 



No. Spec 

 1 



Apolemia. Off Block Island, 1880. Surface, No. 6538. 



Agalma elegans. Gulf Stream. 



Gleba (Hippopodius) hippopus. 925 



Haliphyta magnifica, gen. et sp. nov. 953 



Diphyes. 



Trachynema digitale, A. Ag. 



!< « u 



Calycopsis typa, gen. et sp. nov. 

 « « « « 



« K a « 



M « it U 



Chromatonema rubrum, gen. et sp. nov. 



« U tt u 



'< (( tl « 



u (i u a 



Ualicreas minimum, gen. et sp. nov. 



Hydroida. 



985 

 1026 

 924 

 870 

 952 

 945 

 936 

 954 

 936 

 936 

 1029 

 954 



Trawl wing. 



Trawl wing. 





DlSCOPHORA. 

 Periphyllia hyacinthina, Stbbk.I 

 Many specimens of the young of this medusa wen- taken. 



* For locations and depths corresponding to the stations, sec Frof. Tamil's 

 op. cit., XX. p. 891, and lee. CtL, pp. 292, '-i'.>4. 



t lVron designated two very different medusa onder the nam- /x-n- 



phrjlla. One of these was undoubtedly the above mentioned, while the other was 



