350 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



well-authenticated records and species the validity of which seems 

 reasonably assured being included. 



There are three general directions along which the species in 

 question can be followed — westward, northward, and eastward. We 

 can not trace them to the south because our knowledge of the Medusa 

 fauna of the northern shores of Australia and of the neighboring 

 islands is almost nil. But not one of our Philippine species appears 

 in Von Lendenf eld's (1887) list of medusae from Port Jackson, New 

 South Wales (34° south latitude.) 



DISTRIBUTION OF MALAYAN-PHILIPPINE SURFACE HYDROMEDUSAE. 



OctocanTia polynema Haeckel is omitted because the specimens 

 so named may have been Phialidium (p. 306). 



i Torres Straits. * New Guinea. 



X Definite record. 

 — indicates that the species is represented by a form so closely allied that it may prove identical. 



