BY R. VON LENDENFELD, PH.D. 275 



Umbrella slightly vaulted, orbicular. Mouth-arm exceptionally 

 long (several times longer than the radius of the Umbrella), with 

 narrow arm-frills, which ai-e not curtain-shaped. Gonads not 

 projecting much. Margin of Umbi'ella with 8 broad projecting 

 tentacle flaps, between the 8 narrow clearly distinct ocular flaps. 

 The 8 ocular-pouches nearly as long as the 8 tentacle-pouches. 



Locality : Coast of Terra del Fuego, Orange Harbour, Cape 

 Horn, Couthouy. 



Genus. Cyanea. 



Cyaneidee, with 8 marginal bodies and numerous tentacles, 

 which form 8 adradial bundles on the Subumbrella. There are- 

 several rows of tentacles, one behind the other in each bundle. 

 Margin of Umbrella, with 8 main flaps and 16-32 secundary flaps. 



Species. Cyanea Annaskala. 



Yon Lendenfeld, Zeitschrift fiir wissenschoftlich Zoologie, 

 Band., XXXVII. Selte, 466, Taf. XVII.— XXIV. 



The Umbrella flaps are rounded and not broader at the end 

 than at the base. Every main-flap (Ephyra-arm) consists of four 

 flaps. Two smaller ocular flaps and two larger flaps at the sides. 

 The Umbrella is 5-7 times as broad as high, depressed, with a few 

 protruding nettle-warts in the centre of the Exumbrella. 



Ontogenesis. The embryos hang on to the Mouth-arms until 

 they are nearly matured to young Scyphystomse, and then affix 

 themselves to bodies in the water producing a long stalk with a 

 chitinous Perisark, and eight arms. The Ephyra passes into the 

 adult animal by a complicated metamorphosis. The Umbrella 

 flaps are produced by fission. 



Colour : Umbrella and Tentacles colourless. Entoderm of the 

 gastral cavity brown. Mouth-arms intensely purple. Genital 

 organs in the male rose coloured, and in the female orange yellow. 



Size: 70-150 mm diameter of the Umbrella. Length of 

 Tentacles, 300 mm. 



Locality : Port Philip. Von Lendenfeld. Abundant in 

 January, February, and March. 



