The genus as hero characterised should perhaps rather be regarded as a family group, under which would be included two, if not three, genera, should the species hero noticed and figured as C. eeroides prove to be a cheilostomatous.polyzoan. The genera are Salicornaria (Curler), Xenia (Busk, 'Cat. Brit,. Nun?).
8. Intricaria (fossil). Animals unknown, contained in hexagonal elongated cellules with elevated borders, and covering the entire surface of a calcareous polyparium sufficiently solid, rush-like (joncac) internally, composed of a considerable number of cylindrical branches irregularly anastomosed.
Example, I. Bajocensis.
De Blainville observes that this genus was established by Defiance for a pretty fossil polypicr found by M. de Corrine in the depart ment of La 3Ianehe ; and he states that on examining it in the collection of the first named of those naturalists, he was satisfied that it approaches very nearly to the CellanV, and especially to a nia 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 3Iillepore. At all events its place hero seems to be doubtful.
part of four species, which being composed of two ranks of cellules should belong to this section.
9. Canda. Animals unknown. Cella rhomboidal, situated on the outer side for the lodgment of a vibraculum ; no avicularium ou the upper and outer angle.
Example, C. arachnoidea, Lamouroux (Cellaria fdifera, Lamarck). Locality, seas of Australia.
De Blainville observes that this genus was established by Lamou roux for a species of Cellaria brought by P4ron and Lesueur from the Australian seas, and which be 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 defined, also belongs Canda reptant (Cellu laria reptant of our coasts).
10. Caberea. Animals unknown. Cells bi-multiserial, in the latter case quineuncial ; 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.
British species. C. Borgi (` Audouin,' Saviguy, 'Egypt,' pl. 12, f. 4); C.Ifookeri (John's ' Brit. Zooph.' Ed. 2,. pl. GO); but these two species have been confounded.
11. Bugula. Polyzoarium erect, phytold, dichotomously divided into narrow ligulate branches ; no vibracula; laria when present pedunculate and articulated ; cella elliptical (viewed behind), closely contiguous, aperture very large, margin simple, not thickened. (Colour not unfrequently red or blue.) Example, B. Neritina. Locality, Mediterranean.
This genus was established by ()ken, and was also constituted by Lamouroux under the name of A camarchis ; but was not adopted by Lamarck, nor by Dr. Fleming, who, according to De Blainville, con founds it with Bicellaria.
12. Bicellaria. Polyzoarium erect, phytoid, dichotomously divided into narrow ligulate biaerial or multiaerial 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 Hatophaa (Gray); Bugula (Oken). Example. Bicellaria ciliata, Sertularia pilosa. Locality, European seas.
This division of Cdlariadte, Critics of Lamoureux, Cellarice of Lamarck, was separated by Dr. Fleming, who gave it the denomi nation of Cellularia, a name preoccupied as we have seen by Pallas for the whole family. Instead of this name De Blainville proposes that hero given, and observes that Savigny, in the plate which he has devoted to Cellaria in his great work on Egypt, has figured the solid 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.