Zoology.} NATURAL HISTORY OF VICTORIA. \_Polyzoa. 



obliquely upwards and outwards to nearly opposite the centre of the upper margin 

 of the mouth of the zocecium in the adjacent series. Ocecium mitriform, deeply 

 imbedded in the zocecium above, divided into two parts by a thick ridge parallel to 

 the outer edge ; the inner part nearly smooth, but areolated at the edges, the outer 

 sloping and also areolated. 



Reference. — P. H. MacGillivray, Tr. Roy. Soc. Vict. ; July 1882; S. contro- 

 versa (Waters), Hincks, Ann. and Mag. Nat. Hist. ' &V^ 



All rny specimens are in the Hemeschara form. Hincks de- 

 scribes it from a Victorian specimen, and refers it to Waters' fossil 

 species, S. controversy an identification with which I do not agree. 

 My original name, S. insignis, having been shortly before given to 

 an African form, I have substituted the specific name dcedala. 

 The mandible of the avicularium is sometimes narrower and more 

 pointed, and also situated lower down, than in the specimen figured. 



Explanation op Figure. 

 Plate 138. — Fig. 4, small portion, magnified, showing also an ooecium. 



Plate 138, Fig. 5. 

 SCHIZOPORELLA SUBSINUATA (Hincks). 



Description. — Zoarium loosely adnate or free. Zocecia separated by narrow, 

 raised lines, varying in shape, broad, convex; surface nodular and perforated; 

 mouth with the margin thickened, and a shallow sinus in the lower lip. Ocecium 

 large, rounded, nodular, and perforated. Avicularia rare, situated at the upper 

 angle of the zocecia, with the long, pointed mandible directed downwards and 

 inwards. 



Reference. — Hincks, Ann. and Mag-. Nat. Hist., Oct. 1884. 



Port Phillip Heads. 



I have no doubt that this species is identical with the S. sub- 

 sinuata of Hincks, although not altogether agreeing with his 

 description or figure. The zoarium is loosely adnate ; of a dark 

 grey or purplish-grey color. The zocecia are large, broad, convex, 

 separated by distinct raised lines, irregular in shape and arrange- 

 ment, frequently quadrate. The surface is, in my specimens, covered 

 by a delicate, glistening epitheca, marked with dark lines and 

 loops; beneath the epitheca the surface is nodular with perforations 

 among the nodules. The ocecia are of large size, covered with the 



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