Marine Polyzoa of Victoria, 217 



Sub-Order II. CYCLOSTOMATA, Busk, 



I. Articulata s. radicata. 



Zoarium free, branched, divided into distinct internodes by 

 flexible joints, attached by radical tubes. Zooecia tubular, calcare- 

 ous, in one or two series. 



Family. Ceisiidjs. 

 The only family. 



Crisia, Lamouroiu. 



^Two or more zooecia in each internode, in two alternate series. 

 C. Edwardsiana, D'Orb. B.M.C., Part III., p. 5 ; P.Z.V., 39. 

 C. biciliata, M^G. P.Z.V., 39. 

 C. setosa, M^G. P.Z.V., 39. 

 C. tenuis, M^G, P.Z.V., 39. 



C. acropora. Bush B.M.C., Part III., p. 6 ; P.Z.V., 39. 



C. margaritacea, Busk. B.M.C., Part III., p. 6. 



II. Inarticulata. 



Zoarium continuous, not divided into internodes, erect, aduate 

 or encrusting; radical tubes, when present, multilocular and cal- 

 careous. 



Family. Idmoneidje. 



Zoarium erect, branched, branches distinct or anastomosing. 

 Zooecia distinct, opening on one surface only. 



Idmonea, Lamouroux. 



g [.Zocecia arranged in parallel or subparallel rows, diverging from 



the mesial line. 



I. radians, M. Edwards. B.M.C., Part III., p. 11 ; P.Z.V., 68. 



I. Australis, M^G. P.Z.V., 68. 



I. Atlantica, E. Forbes. B.M.C., Part III., p. 11 ; B.M.P., p. 451. 



Port Phillip Heads, J.B.W. 

 Var. tenuis. Busk. B.M.C., Part III., p. 11. 



Port Phillip Heads, J.B.W. 

 I. Milneana, D'Orb. B.M.C., Part III., p. 12. ; P.Z.V., 68. 

 I. interjuncta, M'G. T.Pv.S.V., Nov., 1885. 



Port Phillip Heads, J.B.W. 



Hornera, Lamouroux. 

 f> Zoarium branched, branches distinct, anastomosing, or connected 

 by transverse bars. Zooecia distinct, opening irregularly on one 



H. ramosa, M'G. T.R.S.V., Nov., 1886. 



