598 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [96] 
Halicreas is the type of a new family of medusa, the Halicreaside, 
which stands intermediate between the Narcomeduse and the Acras- 
peda. 
Among the smaller meduse there are many Campanellide. 
Solmaris incisa, sp. nov. 
A giant Solmaris (50-60™™ in diameter) of a new species (8S. incisa) is 
represented by three specimens from the following stations: 


a Locality— 
z Depth. 
Ss N. lat. W. long. 
n 
Oe eiidt Greet Fathoms. 
2094 | 39 44 30 71 04 00 1, 022 
2104 | 38 48 00 72 40 30 991 
i 


This species has thirty-two radial pits or furrows on the subumbral 
side of the disk. These indentations are confined to the corona. 
HYDROIDA. 
The hydroid gonophores are very numerous, and there are species of 
Zygodactyla, sp. nov., and Mesonema, Staurophora laciniata Ag., Turris 
episcopalis Fewkes, several Oceanide, and one or two minute genera 
which have not been satisfactorily examined. 
The collection also contains specimens of Porpita Linnewana Less., 
Velella mutica Bose, and Rataria (young Velella?). There is a single 
Agalma nectocalyx, a large Gleba, and fragments of Agalmide. Cuboides 
and Sphenoides were found for the first time in the Gulf Stream. 
The indications are that there are several genera and species of Rhi- 
zophyside in the Gulf Stream. The collection contains fragments of 
three or four undetermined species, besides two species which could be 
identified. There is also a new genus of Rhizophyside in the collection. 
A new species of Rhizophysa is allied to &. inermis of Studer. In this 
species there are no tentacles, and the polypites and sexual organs 
arise in clusters at intervals on the axis,asin Apolemia. The float of an- 
other unknown Riizophysa is 15™ in shorter, 30™™ in longer diameter, 
in alcohol. This is the largest Rhizophysa float ever recorded. A short 
section of the stem of this giant still remains with the float, but the re- 
mainder, with its appendages, is broken and lost, so that identification is 
impossible. 
Pterophysa grandis, gen. et sp. nov. 
A magnificent new genus of Rhizophysida, which will be described 
under the name Pterophysa, is one of the most important additions 
made by the “Albatross” to our Medusan fauna. This genus has two 
lateral muscular wing's on the polypites and no tentacles. The sides of 
the polypites are specialized into grasping organs, which, in conjune- 
tion with the lateral folds, convert these organs into suckers, by which 
