POLYPI. 89 



an animal much resembling an Actinia, with a large oval oral-aperture 

 surrounded by numerous, very large, transparent tuberculated rays. The 

 other species upon which LAMAKCK has founded this genus are only known 

 in the fossil state. It was thought that they were not affixed, and con- 

 sequently they were referred to this family ; the discovery, however, of the 

 voyagers quoted above, shews that the species now living far rather belongs 

 to the family of the Ocellina, and probably ought to be joined to Mono- 

 myces EHRENB. It may be suspected, perhaps, from STUTCHBURY'S 

 observations, that here younger forms of Fungia have crept in. 



To Turbinalia the genus Diploctenium GOLDFUSS, Flabellwn LESSON 

 may be added. See FldbeUum pavoninum LESS. Illustrations de Zool. 

 PL xiv. 



Note. The genus Lithactinia LESSON related to the ffungite, might 

 perhaps from recent investigations be established with propriety. 

 Comp. LESSON Illustrations de Zoologie, PL vi. 



C. Polyps with the whole body soft or subcoriaceous. 



Family XII. Zoanthina. Polyps affixed, never detached 

 spontaneously, rarely solitary, more frequently gregarious, gemmi- 

 parous or oviparous, never dividing spontaneously. 



Zoantlius Cuv. Bodies fleshy, subcylindrical, below slender, at 

 the top clavate, gregarious, adhering by filiform gemmiferous stolons 

 of the base. Mouth terminal, crowned with tentacles filiform or 

 clavate. 



Sp. ZoantJius Ettlsii, Actinia soc^ata ELLIS, Phil. Transact. 57, Tab. xix. 

 fig. i, 2. Encyclop. meth. PL LXX. fig. i, GUE'RIN Iconogr., Zoopk. PL xx. 

 fig. 4. Zoanth. Bertholetii EHRENB., Polythoa Bertholetii AUDOUIN, SAVIGNY 

 Dtscr. de VEgypte, Polypes, Tab. n. fig. 3. Zoantkus Couchii JOHNSTON, 

 Hist. Br. ZoopTi. p. 202. PL xxxv. fig. 9. 



Mamillifera LESUEUR, Gavolinia SCHWEIGG. Bodies cylindrical 

 or clavate, gregarious, conjoined by a membranous base, not retrac- 

 tile. 



Sp. Mammittifera Oawlinii, Madrepora denudata CAVOLINII, Polipi marini, 

 Tab. in. fig. 68, pp. 57, 58. 



Palythoa LAMOUR., EHRENB., Corticifera LESUEUR. Bodies 

 gregarious, connate, dilated into a coriaceous expansion, with the 

 little apertures slightly emergent. 



Sp. Palythoa ocellata, Alcyonium ocellatum ELLIS and SOL. 



Hughea LAMOUR., EHRENB. Polyps solitary, oviparous, with- 

 out any stolons. 



