202 A Catalogue of the 



Family. TuBUCELLARiiDiE. 



Zoariuin erect, branched ; branches cylindrical. Zooecia arranged 

 around an imaginary axis, convex, distinct ; mouth produced into a 

 tubular peristome. No avicularia. Ooecia ? 



Tubucellaria, B'Orhigny. 



Zoarium consisting of cylindrical internodes, connected by corne- 

 ous tubes. Zooecia ventricose above and attenuated downwards ; 

 usually a simple, circular, median pore ; surface punctate or reticulo- 

 scrobiculate. 



T. hirsuta, Bush sp. P.Z.V., 49 j C.P., p, 100. 

 T. cereoides, Ellis and Solander. P.Z.V., 105. 



Port Phillip, S. Channel, J.B.W. 



Family. Bicellariid^. 



Zoarium phytoid, erect and continuous, or adnate. Zooecia con- 

 tinuous, loosely united or disjunct, and connected by corneous tubes, 

 obconic or boat-shaped, wholly or partly open in front. Avicularia, 

 when present, pedunculate, capitate, altered in form or aborted. 



Bicellaria, Blainville. 



Zoarium phytoid, erect, branches continuously celluliferous. Zooecia 

 biserial, obconic or turbinate, more or less free above and attenuated 

 below ; aperture directed upwards and forwards, with several articu- 

 lated marginal or sub-marginal spines. 

 E. tuba, Bush B.M.C., Part I, p. 42 ; P.Z.V., 59. 

 B. grandis, Bush. B.M.C., Part L, p. 42 ; P.Z.V., 59. 

 B. Ciliata, Linn. sp. B.M.C., Part I, p. 42 j B.M.P., p. 68 ; 

 P.Z.V., 59. 



Hobson's Bay. 

 B. gracilis, Bush. B.M.C., Part I., p. 42. 



Port Phillip Heads, J.B.W. 



B. turbinata, i/' G. P.Z.Y., 59. 



Stirparia, Goldstein. 



Zoarium consisting of tufts of celluliferous branches attached to 

 bare annulated or segmented stems. Zooecia biserial, turbinate ; 

 aperture looking upwards and forwards, and with marginal spines. 

 S. animlata, MapUstone sp. P.Z.Y., 59. 

 S. glabra, Hiiichs. A.M.N.H., March, 1883 ; C.P., p. 35. 



Lome, Mr. Wooster. 



Bugula, Ohen. 



Zooecia bi-multiserial, closely contiguous, aperture very large, 

 directed forwards, the margin not at all or very slightly thickened. 

 Avicularia capitate, pedunculated, and articulated. 

 B. CTlCUllata, Bush. P.Z.Y., 78. 

 B. dentata, Lamx. B.M.C., Part I., p. 46 ; P.Z.V., 78. 



