200 A Catalogue of the 



upper and outer angle, and a vibraculum in a sinus on the outer 

 and lower part behind. 



S. cyclostoma, Busk B.M.C., Part I., p. 24 ; P.Z.V., 126. 

 S. Obtecta, Haswell P.Z.V., 126; J.B.W. 

 S. SCrupea, Busk B.M.C., Parti., p. 24 ; P.Z.Y., 126. 

 S. cervicornis, Bush, B.M.C., Part L, p. 24 ; P.Z.Y., 126. 

 S. ornithorhynchus, Wyv. Thomson. P.Z.V., 126 ; C.P., p. 24. 

 S. reptans, Linn. sp. B.M.C, Part L, p. 27 ; B.M.P., p. 52. 

 Port Phillip Heads, J.B.W. 



Canda, Lamouroux. 



Zoarium dichotomously branched ; branches articulated, biserial, 

 connected by transverse chitinous tubes attached at either end to a 

 vibraculum. Avicularia large, situated on a special tract, on the 

 front of the branches, between the rows of zooecia. Each zocBcium 

 with a vibraculum posteriorly. 



0. arachnoides, Z^am^. B.M.C, Part I., p. 26; C.P., p. 25. 

 C. tenuis, M^G. T.R.S.V., Nov., 1884. 



Caberea, Lamouroux. 



Zoarium continuous or imperfectly jointed, dichotomously 

 branched. Zooecia bi-multiserial, quadrate. Avicularia, when pre- 

 sent, sessile on the outer side or front of the zooecia. Vibracula 

 large, on the back of the branches, biserial, each common to several 

 zooecia. 

 0. mdis, Busk B.M.C, Part I, p. 37. 



(= Menipea marginata, Hincks. A.M.N.H., Oct., 1884.) 

 a grandis, Hinchs. A.M.N.H., July, 1881. 

 C. Darwinii, Bush CP., p. 29 ; T.R.S.V., Nov., 1885. 

 C. glabra, M^G. T.R.S.V., Nov., 1885. 



Amastigia, Busk 



Zoarium continuous, dichotomously branched. Zooecia bi- 

 multiserial. Sessile avicularia on the sides of the lateral zooecia and 

 in front. No vibracula, but avicularia on the back of the zoarium, 

 one to several zooecia, the mandible pointing downwards and 

 inwards. 

 A. rnida, Busk B.M.C, Part I., p. 40. 



Port Phillip Heads, J.B.W. 



Menipea, Lamouroux. 



(Including Emma, Girnj^ and Busk.) 



Zoarium articulated or (in one species) continuous. Zooecia bi- 

 multiserial, oblong, imperforate behind. A sessile, lateral avicu- 

 larium (frequently absent), and one or two sessile avicularia (also 

 frequently absent) on tbe front of the zooecia. No vibracula. 

 M. cyathus, W. Thomson. P.Z.V., 58. 

 M. Buskii, Wyv. Thomson. P.Z.V., 58. 



