432 



MEDUSA OF THE WORLD. 



The following is a description of the genera of Sohnarida?: 



Solmaris= Polycolpa+ Solmaris Haeckel, 1879. Without saccules on the subumbrella floor of the stomach. Gonad ring-like 

 and developed more or less diffusely in the subumbrella floor of the stomach. 



Pegantha=Pegasia+ PoIyxenia+Pegantha-i- Solmoneta (in part) Haeckel, 1879. With pouch-like saccules upon the subum- 

 brella floor of the stomach. The genital products are found in the ectoderm of these saccules. 



The generic names Pegasia and Polyxenia are older than Pegantha, but are so vaguely 

 defined that I fear it would be hopeless to attempt to revive them and they may best be per- 

 mitted to lapse into oblivion together with Diancea, Foveolia, etc. 



Genus SOLMARIS Haeckel, 1879, sens, emend. 



Mgineta (in part), Gegenbaur, i8$6, Zeit. fur wissen. Zool., Bd. 8, p. 262. 

 Polycolpa (immature ?)+ Solmaris, Haeckel, 1879, Syst. der Medusen, pp. 327, 355. 



SolmartSj Maas, 1893, Ergeb. der Plankton Expedition, Bd. 2, K. c, p. 44; 1897, Mem. Mus. Comp. Zool. at Harvard College, 

 vol. 23, p. 27; 1905, Craspedoten Medusen der Siboga Exped., Monog. 10, p. 80. 



Synoptic Table of Species of Solmaris. 



* JEgineta paupercula Gegenbaur, 1856, p. 263, taf. 10, fig. 10, is probably young of this medusa. 



j- Browne, 1903, found this Mediterranean form off coast of Norway. Probably identical with JEquorca rhodoloma Brandt 



from the coast of Chile. 

 I Distinguished by great number of lappets and tentacles. 



