411 



POLYPIFERA. 



POLYPIKKRA. 



411 



Second Tribe. Iiinir. 



i axis articulated or compoced of segment*, the structure of 

 which differs alUroaUly. 

 Gen. /fit, Moftta, iltlitcra. 



Itil kippurit. 



Third Tribe. Corallina. 



Common axU inarticulate, lolid, and calcareous. 

 Qenui CuralltuHi. 



Family 3. Pcnntituiida. 



Polypi aggregate, and having a common peduncle, the centre of 

 which is occupied by a peculiar cavity, and usually contains a solid 

 axil, this iclerobaaia styliform and never expanding at its under 



FauutuU gritra. 



extremity ao as to adhere to extraneous bodies. The polyp-maw is 

 consequently free. 



Oen. Prnnatula, Virgularia, Paronaria, Oraphularia, UmbeUnlaria 

 VeretiUuM, Lituana, Varcrnulana, Rcnillia. 





1'mbeUularin rnrrinu*. 



riiyularia mirabilit. 



Order 3. Podactinaria, 



Polypi having the gastric cavity surrounded by four vertical mem 

 brauaceous septa, at the upper end of which are placed four pairs of 

 intestiuiform reproductive organs. The tentacula discojdal, peduncu- 

 lated, not tubular as in Zoantliaria and Attyonaria, but organised 

 much in the same way as in Echinodn-ma. The mouth proboscidiform, 

 and the fauces surrounded by numerous internal filiform contractile 

 appendices. 



The genus Lucernaria is the only representative of this zoologica 

 type, and comprises no oorralligenous Polypi. [LUCERNABIAB*.] 



Sub-Class II. HyitBAiu A. 



Polypi with a simple non-lamelliferous digestive cavity. No interna 

 generative organs. Tentacula filiform and subverrucose. [HTDnoiDA.] 



We subjoin illustrations of three of the genera belonging to this 

 sub-class. 



