ACALEPH &. 125 
Oceania Prron (with the addition of several species, and 
other genera). 
Subgenera: Oceania PrRon, Circe Mertens, Conis Branpt, 
Callirhoé Péron, Thawmantias Escuscu., Tima Escuscu., Melicer- 
tum OKEN, Cytwis Escuscu., Phorcynia PERO. 
Sp. Oceania marsupialis Escuscu., Medusa marsupialis L.; PLANo. de 
Conch. min. not. Tab. Iv. fig. 5 ; Minne Epwarps, Ann. des Sc. nat. XXVIII. 
1833, pp. 248—266, Pl. r1—13, Mediterranean ;— Callirhoé Basteriana 
Péron, Bastur Natuurk. Vitsp. 1. Tab. v. fig. 2, 3, &e. 
Family X. dquoride. Dise without lateral cavities, inclosing 
organs of generation. Body depresso-campanulate or plane. Mouth 
and cesophagus not elongated into a proboscis. Arms none or 
little evolved. Stomach with sacculated appendages or canals 
radiating, elongate, numerous. 
Aiquorea PkRON, Cuv. 
Subgenera: Zquorea Péron, Stomobrachium Branpt, Mesonema 
Escuscu., Hurybia Escuscu., Polyxena Escuscu. 
Sp. dquorea Forskalina Escuscu., Medusa equorea Fors. Icon. rer. nat. 
Tab. Xxx. ;— dquorea violacea MitnE Epwarps Ann. des Sc. nat. 2¢e 
série, Tom. XvI. Zool. pp. 193—199 ; Cuv. R. Ani. éd. ill., Zooph. Pl. 72 ; 
the margin has many conical cirri, the mouth is wide and round; from 
the stomach proceed about eighty long undivided rays (water-canals), which 
run towards the margin, and appear to open on a small conical point 
between two cirri, The genital organs are situated below on the disc, on 
each side of every ray as folded borders, but they do not extend as far as 
the margin. (EscuscHoutTz divided the Discophore into Cryptocarpe and 
Phanerocarpe, Syst. der Acal. p. 41; to the last, which have the sexual 
organs placed crucially in the disc and attracting observation by their 
colour, belong the Rhizostomide and Meduside ; to the first the Geryonide, 
Oceanide and diquoride ; in all of these the sexual organs have not yet 
been detected, but they will probably be found at the under side of the 
disc, and since in Mquorea violacea, according to the observations of 
Minne Epwarps, they strike the eye on this surface, and are also dis- 
tinguished by their violet colour, we cannot accept the name Crypto- 
carpe. ; 
[The Cryptocarpe of EscuscHoirz include the naked-eyed Meduse of Forsxs. | 
Note to the Discophore. There remain certain genera of authors, 
in which a mouth has not been found, namely Hudora and Berenice 
Peron. (Sp. Berenice rosea, Cuvieria Péron Voyage aux terr. 
austr. Pl. 30, f. 2; Gurrin Iconogr. Zooph. Pl. 16, fig. 1.) These 
