20 



HJALMAR BROCH. 



*J 



^A^rr^.d\ 



— ^7 



2 



Fig. 12. Distribution of Poralia and Aurelia solida. © PoraLia. "Michael Sars". O previous records of Poralia. 

 £ Aurelia solida. "Michael Sars". A previous records of Aurelia solida. 



Aurelia Peron and Lesueur. 

 Aurelia solida Browne. 



At Stat. 56, south of the Azores, the "Michael Sars" 

 procured two specimens of Aurelia, which at once attracted 

 our attention on account of their solid jelly and the 

 anastomosing of their radial canals near the margin of 

 the umbrella. An examination of the sense-organs showed 

 that the specimens belong to Aurelia solida Browne. 



These specimens, which are of a violet hue, are larger 

 than those mentioned by previous authors, being 84 and 

 100 mm in diameter. 



Browne 1 ) first described this species from the Indian 

 Ocean, and later 2 ) from the Atlantic to the West of 

 Madeira, and Maas 3 ) mentions specimens of it from the 

 Azores. The species thus seems to be tropical and sub- 

 tropical and apparently, a neritic surface-form. 



Trondhjem, December 11th, 1911. 



1 ) Scyphomedusae. (Fauna and Geography of the Maldive and Laccadive Archipelagoes, Vol. II). Cambridge 1905, p. 960. 



2 ) The Medusae of the Scottish National Antarctic Expedition. (Trans. Roy. Soc. Edinburgh, Vol. XLVI) 1908, p. 249. 



'') Japanische Medusen. (Abhandl. math. phys. Klasse der K. Bayer. Akad. Wissenschaften I Suppl. Bd.). Miinchen 1909, p. 45. 



