Zoology.^ NATURAL HISTORY OF VICTORIA. \_Pohjtoa. 



Plate 177, Figs. 1 and 2. 

 CRASPEDOZOUM LIGULATUM (McG.). 



[Genus CRASPEDOZOUM (McG.). (Sub-kingdom Mollussa. Class Polyzoa. Order 

 Infundibulata. Sub-order Cheilostomata. Family Flustridae.) 



Gen. Char. — Zoarium erect, in ligulate divisions, uni- or bi-Iaminate, each branch bordered 

 throughout its whole extent by a bundle of r.adical fibres springing from the bases of the lateral 

 zooecia. Zooecia quadrate, aperture partly filled in by a thickened lamina. Ooecia external.] 



Description. — Zoarium unilaminate, erect, dichotomously divided into narrow 

 ligulate lobes. Zooecia ovate, aperture partly filled in by a finely granulated 

 thickened lamina ; a sharp spine on each .side above. A sing-le avicularium on an 

 eminence at the ba.se of the zooecia. Posteriori}' the outlines of the zocecia irregu- 

 larly rhomboidal. Ooecia mitriform, thickened at the upper margin, leaving a 

 depressed area in front. 



Reference.— P. H. MacGillivray, Tr. Roy. Soc. Vict., Nov. 1885. 

 Port Phillip Heads. 



Explanation of Figukes. 



Plate 177. — Fig. 1, specimen, natural size. Fig. la, anterior surface of portion of a branch 

 of the same, magnified. Fig. li, posterior surface of the same. Fig. 2, small portion of another 

 specimen showing the ooscia. 



Plate 177, Fig. 3. 

 CRASPEDOZOUM SPICATUM (McG.). 



Description. — Zoarium unilaminate, erect, dichotomously divided into narrow 

 ligulate lobes. Zocecia ovate, margins granular and lower part of aperture filled in 

 by a thickened granular lamina; an erect spine at each side superiorly, and in the 

 marginal zooecia an additional longer spine below the usual one at the outer angle. 

 A sessile avicularium on an umbonate eminence frequently at one side of the base 

 of the zooecia, but often absent. Ocecia mitriform, produced upwards into a 

 prominent apiculate spine ; anterior area very small. Posteriorly the zocecia elon- 

 gated, straight above, constricted in the middle. 



Reference. — P. H. MacGillivray, Tr. Roy. Soc. Vict., Nov. 1885. 

 Port Phillip Heads, Mr. J. Bracebridge Wilson. 



Explanation op Figures. 

 Pl.\te 177. — Fig. 3, specimen, natural size. Fig. 3a, portion of same, magnified, anterior 

 view. Fig. 3ft, posterior view. 



Vol.. II.— Dkade XVIII.— 2(. [ 283 ] 



