400 Leuckart, Bericht üb. d. Leistungen in d. Naturgeschichte 



Palagonien u. s. w. — C Hookeri (Flem.) ü. — ? T. lala n. sp.*_ 

 Australien. 



Gen. Amastigia n. An avicularium to about each tiiree cells 

 on the back of the branches. No vibracula. 



A. nuda n. sp. Terra del Fuego. 



Fam. Bi cellar iadae. (Polyzoary dlchotomoiisly divided into 

 narrow ligulate, bi-or multiserial branches. No vibracula. Avicula- 

 ria, when present , pedunculate and articulated. Polyzoary erect 

 phytoid.) 



Gen. Bicellar ia Bl. Cells turbinate , distant. Aperture di- 

 recled more or less upwards. Several spines, marginal or dorsal. 



B. ciliata {L.) \i\. Europ. Küsten. — B. gracilis n. sp.** I3ass-Slr. 



— B. grandis n. sp. Ebendah. — B. tuba n. sp.- Ebendaher. 



Gen. Halop hila Gray. Cells contiguous, altenuated dounwards, 

 niuch expanded upwards vvith a large piain aperture; unanned. 



H. Johnstoniae Gr, Bass-Str. 



Gen. Bugula Ok. Cells elliptical (viewed behind), closely 

 conliguous, bi-multiserial ; aperture very large; margin simple, not 

 thickened. Avicularia, when present, pedunculated and articulated 

 (Irequently coloured red or blue.) 



B. nerüina (L.) Ok. Engl. Küste, Austral., Rothes Meer u. s. w. 



— B. flabellala (Gr.) Busk. Europ. Küsten. — B. aticnlaria (L.) Ok. 

 Europ. Küsten. — B. plumosa (Pall.) Busk, Engl. Küste. — B. denlala 

 (Lamx.) Busk. Austral., Süd-Afr. — B. Murrayana (Johnst.) Busk. 

 Engl. Küste. 



Fam. Flu slradae. (Polyzoary flexible, expanded, foliaceous, 

 erect, sometimes decumbent and losely attached. Cells multiserial, 

 quincuncial or irregulär.) 



Gen. Flustra (L.) Lamx. Cells contiguous; on both sides of 

 the frond. 



Fl. foliacea L. Europ. Küsten. — FL papyracea Ell. Engl. Küste. 



— FL truncala L. Engl. Küste. — FL oclodon n. sp. Spanische Küste. 



— Fl. denticulala n. sp. Austral. 



Gen. Carbnsea Gr. Cells contiguous, on one side only of 

 the frond. 



C. papyracea (Pall.) Gr. Engl. Küste, — C, fhciformis n, sp. 

 Tasmania ; C. armala n, sp. Südafr. — C. crlbriformis n. sp.^' Cum- 

 berland's Ins. — C. dissimüis n, sp. Tasmania. — C. episcopalis n. sp. 

 Bass-Str. — C. bombycina (L.) Busk. Südafr. — C. ovoidea n. sp. 

 Patagonien. — C. elegans n. sp. Tasmania. — C. indivisa n. sp. Neu- 

 seeland. 



Gen. Diachoris n.* Cells disjunct, each connected with six 



