der niederen Thiere während der J. 1854—1855. 397 



of which Iwo arise from a Single cell at cach bifurcalion. Avicula- 

 ria Single and anterior or double and lateral (or altogether wanting?j 



A. parasilicum n. sp. Südafrika. — Alysidium Lafontii (Aud.) 

 Spanische Küste. 



Gen. C alpidium n.* Cells wilh an avicularian on each side, 

 with two or more, nsually three, distinct aperlures, 

 arising one from the upper pari of anolher in a linear series, all fa- 

 cing the same way and forming dichotomously divided branehes of an 

 erccl phytoid polyzoary; cells at the bifurcalion single. 



C. ornatum n. sp.* Bass-Str. 



§§ Bi-mnltiserialaria. 



Fam, S alicornariadae. (Cells disposed around an imagi- 

 nary axis, forming cylindrical branehes of a dichotomously divided, 

 erect polyzoary.) 



Gen. Salicornar ia. Front of cell much depressed, surroun- 

 ded by an elevated ridge, by which the surface is divided into more 

 or less regulär rhomboidal or hexagonal spaces ; no aperture. Avicu- 

 laria disposed irregularly. 



S. farciminoides Johnst, Europ, Küsten. — S. gracilis Busk. 

 Engl. — S. temiirostris n. sp.* Südsee. — S. mahinensis n. sp. Falk- 

 lands. Inseln. 



Gen. Nellia n. Front of cell conV^ex , with a distinct raised 

 border; a large aperture. üvicells ? 



JV. oculata n sp."" — N. simplex n. sp.* Beide aus der Tor- 

 res-Str. u. s. w. 



Fam. Cellula riadae. (Cells disposed in the same plane, 

 forming linear branehes of a dichotomously divided , phytoid , erect 

 polyzoary.) 



Gen. Cellularia Busk. Cells bi-triserial, more than four in 

 each internode; oblong or rhomboidal, contiguous; perforated behind. 

 Without avicularium or vibraculum , unless rarely the former on the 

 Upper and outer angle of the cell. 



C. cuspidala (C. monolrypa n. sp.*) Busk. Südsee. — C. Peachii 

 Busk. Engl. Küste. — C ornala n. sp. Algoa-Bay. 



Gen, Menipea Lamx. Cells oblong or elongated and atlenua- 

 ted downwards ; imperforate behind, with a sessile avicularium fre- 

 quently absent on the upper and outer angle, and one or two sessile 

 avicularia on the front of the cell below the aperture. 



M. fuegensis n. sp. Falklands-lns. u. s. w. — M. ternata (Ell. 

 nnd Sol.) Engl. Küsten. — itf. cirrala (Esp.) Lamx. Südafr. — M. 

 Iriseriata n. sp. ebendah. — M, mulliseriata n. sp. Vaterl. unbek. — 

 M. patagonica d. sp. Falklands.Ins. 



