288 THE SCYPHOMEDUS.E OF THE SOUTHERN HEMISPHERE, 



Orinhyia incolor. Quoy et Gairnard, 1833. Voyage de 1' Astro- 

 labe. Zoophytes. Torn IV., p. 297, pi. XXV, figs. 6-10. 



Salainis toreumata. Lesson, 1843. Acalephes, p. 343. 



Salamis toreumata. L. Agassiz, 1862. Monogr. of Acal. Contrib. 

 to tLe Nat. H. of the U.S.A. Vol. IV, p. 159. 



Umbrella deep cap-shaped. The central Umbrella-disc flat and 

 thick. Depressed in the centre with ramified radial furrows. 

 With deep circular groove. In every Octant 8 short and truncate 

 velar, and 2 small ocular flaps. Arms much dichotomously 

 branched; with 8-10 larger branches. Filaments numerous and 

 short. Longer towards the centre. Arm branches projecting 

 beyond the Umbrella. 



Locality : Molucca Sea. Quoy et Gairnard. 



Family. Pilemidce. 



With no mouth, and many suction openings along the arms, 

 without tentacles. With 4 sub-genital cavities, and with dorsal 

 and ventral suction crisps on the arms. 



Genus. Toxoclytus. 



Pilemida) without scapulets with 8 free triangular pyramidal 

 arms, the three broad pinnate wings of which bear simple suction 

 crisps on their free margins, with long filaments. 



Species. Toxoclytus roseus. 



Haeckel, System der Medusen. Seite, 586. 



Toxoclytus roseus. L. Agassiz, 1862. Monogr. of Acal. Contrib. 

 to the Nat. H. of the U.S.A. 



Rhizostoma resea. Pteynaud, 1830. Lesson. Centurie Zoologique, 

 p. 97, pi. XXXIV. 



Umbrella flat hat-shaped ; in every Octant 5 or 6 velar-flaps 

 between 2 ocular flaps (1). Arms scarcely as long as the radius of 

 the Umbrella. The upper arm cylindrical, and about as long as 

 the triangular prismatic lower arm. Suction crisps broad and 

 deeply incised. 



