800 



CELLAIU.EA. 



CELLARI/EA. 



e:o 



9. Canda, Animals unknown. Cells rhomboidal, situated on the 

 outer side for the lodgment of a vibraoulum ; no avicularium on the 

 upper and outer angle. 



Example, C. aractmoidea, Lamouroux (Cellaria filif era, Lamarck). 

 Locality, seaa of Australia. 



Canda arachno'idca. a, natural size; &, c, portions magnified. 



De Blainville observes that this genus was established by Lamou- 

 roux for a species of Cellaria brought by Pdron and Lesueur from 

 the Australian seas, and which he saw in Lamouroux's collection, 

 which now forms part of the Museum of Caen. The assemblage of 

 cells resembles the vertebral column of a fish. Upon one of the 

 surfaces are two rows of alternate cells, separated by an angular 

 crest. Upon the other surface may be seen the back of the cells, 

 with tubular filaments which reach transversely from one branch to 

 another, and are analogous to the radiciform, or root-like tubes. He 

 adds that it would appear that these transverse fibrils are sometimes 

 wanting, as in the variety noted by Lamarck. 



To this genus, as thus denned, also belongs Canda replant (Cellu- 

 laria reptam of our coasts). 



10. Caberea. Animals unknown. Cells bi-multiserial, in the latter 

 case quincuncial ; back of branches furnished with large vibracula, 

 which are placed obliquely in two rows, diverging in an upward 

 direction from the middle line, where the vibracula decussate with 

 those of the other ; avicularia, when present, sessile on the front of 

 the cell. 



Example, C. dichotoma. 



Cdbrrea dU-lmloma. a, natural size ; ft, two cellules magnified. 







British species. C. Borgi (' Audouin,' Savigny, 'Egypt,' pi. 12, f. 4) ; 

 C.Hookeri (John's 'Brit. Zooph.' Ed. 2, pi. CO); but these two 

 species have been confounded. 



11. Bugvla. Polyzoarium erect, phytoid, dichotomously divided 

 into narrow ligulate bi-multiserial branches ; no vibracula ; avicu- 

 laria when present pedunculate and articulated ; cells elliptical 

 (viewed behind), closely contiguous, aperture very large, margin 

 simple, not thickened. (Colour not unfrequently red or blue.) 



Example, B. Nerttina. Locality, Mediterranean. 



This genus was established by Oken, and was also constituted by 

 Lamouroux under the name of A camarch.it ; but was not adopted by 

 Lamarck, nor by Dr. Fleming, who, according to De Blainville, con- 

 founds it with Bicellaria. 



12. BiceUaria. Polyzoarium erect, phytoid, dichotomously divided 

 into narrow ligulate biserial or multiserial branches ; no vibracula ; 

 avicularia when present pedunculate and articulated; cells turbinate, 

 distant ; aperture directed more or less upwards ; several spines, 

 marginal or dorsal. 



To the same family belong ffalopliila (Gray) ; Bugula (Oken). 



Example, BiceUaria ciliata, Sertularia piloia. Locality, European 

 MM 



This division of CdlariaJn, Crinet of Lamouroux, Cellaria of 

 Lamarck, was separated by Dr. Fleming, who gave it the denomi- 

 nation of C'rlluJaria, a name preoccupied as we have seen by Pallas 

 for the whole family. Instead of this name De Blainville proposes 

 that here given, and observes that Savigny, in the plate which he has 

 devoted to CMariee in his great work on Egypt, has figured the solid 



part of four species, which being composed of two ranks of cellules 

 should belong to this section. 



AcamarcHii fferitina. a, natural size ; b, lower portion magnified. 



13. Notamia. Cells opposite, in pairs; a pair of tobacco-pipe- 

 shaped avicularia above each pair of cells, each arising from 

 the inferior tubular prolongation of one of the cells in the pair next 

 above. 



Example, N. bunaria. Locality, European seas, Ac. 



This is the Sertularia bursaria of Linnxus, Cellularia bursaria of 

 Pallas, Dynamena burtaria of Lamouroux. 



To the same family belong Gemdlaria (Savigny), Didymia (Busk), 

 Dimctopia (Busk). 



14. Scruparia. Cells uniserial; junctions rigid, or of the same 

 consistence as the cells ; polyzoary aduate or erect. 



Example, S. chelata, Ellis and Linn. ; Cellitlaria chdata, Pallas j 

 Eucratea chelata, Lamouroux ; E. loricata, Fleming. Locality, 

 European seas. 



In the same family are included Hippothoa (Lamouroux) ; 

 Jitea (Lamouroux); Beania (Johust.). 



Lamouroux broke up this generic division into the genera Eucratea 

 and Lafoea. De Blainville says that UniceUaria, under which he 

 includes Kcruparia, is easily characterised by the solitary disposition 

 of its cellules, and that he had examined both Eucratea and Lafoea 

 in Lamouroux's collection at Caen, and found the differences of too 

 little value to warrant the separation. 



15. Catenicella, De Blainville ; Calmaria, Savigny. Animals 

 unknown ; contained ill calcareous cells arising one from the upper 

 and back part of another by a short corneous tube, all facing the 

 same way and forming dichotomously divided branches of an erect, 

 phytoid, polyzoary cell, at each bifurcation geminate. 



16. Sfenipea. Cells oblong, or attenuated downwards, imperforate 

 behind, with a sessile avicularium, frequently absent on the upper and 

 outer angle, and one or two sessile avicularia on the front of the cell 

 below the aperture. 



Synonyms. Cellaria (part), Linnious, Solander. 

 Cram (part), Lamouroux. 

 Tricellaria, Fleming, De Blainville, Gray. 



The essential distinctive character of this genus, as here intended, 

 consists in the presence of one or more sessile avicularia on the front 

 of the cell below the aperture, and usually of a sessile avicularium at 

 the upper and outer angle ; no vibraculum. With the exception of 

 one or perhaps two species the Menipea have three or six cells only 

 in each internode ; the branches consequently are loose and straggling, 

 and usually incurved at the extremities, as is best seen in M. cirrata. 



