





818 



membranous, plant-like, non-articulated, dkhotomous, and fixed 

 polyrcarium. 



Fluilra ariru'.arii. Shoving a spherical moss of the natural Ue. 



Elzrrina Blaincillii. 

 e, natural ilxe ; b, a poition magnified. 



Flnslra aririilnris. 



*, A Sprcimrn fhowinir the root and branching form of the natural nize ; 

 i, r, portion! magniArd. From Sowerhy'i 'British Miscellany,' London, 1806. 



Example, Ehtrina Slainrillii. Locality, the seas of Australia. 



Do lilainville observes that 



_ ^ >fl^ this genus was established by 



1 ^T A ^B^B Lamouroux for a polype 



^^J* J^^ MID I'niiight from the seas of 



^^J ^^^ fIDj Australia by Pe'ron and 



\^r Inf Lesueur, which De Blainville 



fjf^^Jl examined in Lamouroux's 



\- collection, and that he has 



a mf l been satisfied that it is a genus 



which can hardly be distin- 

 guished from the phyto'id or 

 plnnt-like Fliutrtr, that it 

 differs from them only in the 

 union of the cellules, which form a circular quincunx, as in Ccllaria 

 Salirontia, and are still more soft and membranous. 



Risso records two species of EUtrina in the Mediterranean, 

 S. trniufn and E. mulabilii ; but De Hlaitiville observes, that if it be 

 true that their cellules are scattered, it is probable that those species 

 do not belong to this genus, the characters of which it must be con- 

 fessed are by no means at present well defined. 



8. Vinrnlaria (recent and fossil). Animals unknown, contained in 

 oral robhexagonal regular cellules, having a subterminal semilmmr 

 orifice, and applied and united longitudinally in many rows, so as to 

 form a cretaceous brittle polyzoariutn, in the'form of a little wand. 



Example, Vimcularia fragilit. Locality of the genus at present 

 known, the Calcaire Tertmin- of Westphalia. A recent species occurs 

 in the Pacific or Australian seas, and is figured in ' Cat. Brit. Mus.' 

 pL 85, V. yigantta. 



De Blainville obiervet that this genus was established by Dcfrnnce, 

 and that it has been adopted by Holdfuss under the denomination of 

 (,'lauronoma, a denomination which De Blainville reject*, remarking 

 that OoldfuM regards it as approaching nearly to Cellnrin falicum 

 and stating that the \'incularia fragilit which he (De Blaiuville) 

 examined in Defrance's collection might well be nothing more than 

 tnie flmlrn, which is found in the same beds with \ f . fragilit. 1 1. 

 Blainrille ailils in support of this opinion that Defranoe showed him 

 specimen which was composed of two rows or series, instead of a 

 single scrim mily. 



ilicurnann. Cells disposed around on imaginary axi, forming 

 cylindrical branches of a dbnotomooily divided erect polyzoarium. 

 o. Hpecies with Hexagonnl i 'dlul. -. nml with a transverse aperture 

 (Oenus, tfalienrnia of Cm : 



Kxample, l',ll,iria California (CcUularia Salicorxia of Pallas! 

 Tnbulana jtitulota of Liiimvus). Locality, European seas. 



Ccllaria Salirornia. 



n, natural size ; b, a portion magnified ; e, a roaller portion ttill more highly 

 magnified. 



0. Species with Oval Cellules, and the aperture rounded and 



tubular. 



Example, C. cerotda (Sertularia ctroldtt of Gmelin). Locality, 

 Mediterranean and the Indian seas. 



De Blainville observes that this 

 genus, established by Pallas under 

 the name of Cellularia, has been 

 successfully simplified by Lamarck 

 and by Lamouroux, who has esta- 

 blished many genera at its expense. 

 De Blainville .further states that 

 before Delle Chiaje no author who 

 had described a species of a true 

 Cdlaria was known ; but that the 

 Neapolitan observer hod filled 

 this gap by informing us in his 

 Memoirs that the polypes of C. 

 ceroldti bear a perfect resemblance 

 to those of Vtllepora (Myriapora) 

 truncata. Pallas made a curious 

 observation relative to the rapid 

 growth of C. Salieomia ; for he 

 found imli\ i'l'i.iU MM inch and a 

 half long upon the eggs of Syuali, 

 which were still far from the time when the young are excluded. 

 The genus as here characterised should perhaps rather be regarded 

 as a family group, under which would be included two, if not tlim-, 

 genera, should the species here noticed and figured as C. ceroidei 

 prove to be a cheilottomatous polyzoan. The genera are Salicornaria 



\, Ntl/ia (Busk, 'Cat Brit. Mus.'). 



8. Inlricaria (fossil). Animals unknown, contained in hexagonal 

 elongated cellules with elevated borders, and covering the entire 

 surface of a calcareous polyparium sufficiently solid, rush-like 

 (joncace') internally, composed of a considerable number of cylindrical 

 branches irregularly anastomosed. 

 Example, /. Bajoeeaiii. 



De Blainville observes that this genus was established by Defrance 

 for a pretty foiwil polypier found by M. de (icrvillr in tin . I. put 

 ment of La Mom-be ; and he states that on examining it in tl><> 

 collection of the first named of those naturalists, he was satisfied that 

 it approaches very nearly to the CWfarur, and especially in I '. fib 

 iii" in the form of its cellules, while however it differs from it because 

 it is not articulated, and because in all probability it did not adhere 

 by radical fibrils. Lamouroux, he adds, thought it was a MiUepore. 

 At all events its place here seems to be doubtful. 



Criteria ctru'itln. 

 natural Ue ; ti, a portion of the 

 lower pait magnified. 



