Zoology. .] NATURAL HISTORY OF VICTORIA. [Polyzoa* 



Plate 48, Fig. 1. 

 ESCHARA OBLIQUA (P. MacGil.). 



[Genus ESCHARA (Rat). (Sub-kingd. Mollusca. Class Polyzoa. Order Inftmdibulata. 

 Sub-Order Cheilostomata. Earn. Escharidae.) 



Gen. Char. — Polyzoary foliaceous or lobed, not perforated. Cells with the walls complete 

 in front, opening on both surfaces, coalescent, placed back to back, and horizontal to the plane 

 of the axis.] 



Description. — Polyzoary foliaceous ; cells obliquely rhomboidal, separated by 

 raised smooth lines ; surface tubercular and perforated ; mouth arched above, with a 

 considerable sinus in the lower lip. Ovicell large, granular, and perforated, and 

 traversed by smooth raised lines like those separating- the cells. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



Schnapper Point ; a single specimen. 



In the only specimen I have seen, the cells form series in an 

 arched direction laterally. They are mostly obliquely rhomboidal, 

 with the mouth in the upper angle ; the surface is tubercular, with 

 numerous small perforations among the tubercles. The ovicells 

 are large, spreading over more than one cell, and with raised lines, 

 marking the limits of the cells beneath. The mouth of the ovicel- 

 ligerous cell is much wider, and the sinus in the lower lip much 

 shallower. 



Explanation of Figures. 



Plate 48. — Fig. 1, specimen, natural size. Fig. la, portion, magnified. Fig. \b, two cells 

 and outline of another, more highly magnified ; in one cell the mouth is obliterated by the 

 deposition of calcareous matter. 



Plate 48, Fig. 2. 

 ESCHAEA DISPAR (P. MacGil.). 



Description. — Polyzoary small, divided into thick lobes; cells immersed, 

 slightly projecting-, and rounded above; month lofty, projecting-, and spout-like 

 above, with a sinus below. An avicularium on one side of the mouth, with the 

 acute mandible pointed upwards. 



Reference. — P. H. MacGillivray, Trans. Roy. Soc. Vict., 1868. 



* In different descriptions " zoarium " is used for " polyzoary," " zocecium " is used for " cell," and " ocecium " is used 



instead of " ovicell." 



[39] 



