[Proc. Roy. Soc. Victoria, 25 (N.S.), Pt. IT., 1913.] 



Art. XXV II. — Further Descriptions oj the Tertiary Polyzoa 

 of Victoria, Part XII. 



By C. M. MAPLESTONE. 



(With Plate XXVII.). 

 [Read 12th December, 1912]. 



Stpongylopopa concinna, n.s. (Plate XXVIT., Fig. 1). 



Zooecium oviform, witli six marginal fenestrae. Avicularia in 

 distal angles. Thyrostonie arched above; margins raised, Tvith a 

 sinus in the proximal one. Ooecium large, ventricose, adnate on 

 distal zooecium; with a rai.sed median longitudinal ridge; aperture 

 large, arched above. 



Locolitjf. — Geelong (J. F. Muldei). 



A single specimen, consisting of three zooecia and an ooecium; 

 the proximal zooecium is imperfect, the front wall is broken away; 

 in the lateral one the lower margin of the thyrostonie is imperfect; 

 the distal one has the thyrostome perfect, and the ooecium extendi 

 over the fi'ont wall nearly up to the thyrostome. 



Stpophlpopa episcopalis, n..s. (Plate XXVTI., Fig. 2). 



Ooecium oblong, ventricose. Front surface with a subtriangular 

 or mitriform depressed area surrounded by raised margins and a 

 round perforation with a raised margin at the apex. Aperture 

 large, with raised margins, arched above; lower margin somewhat 

 irregular, Avith a ridge extending from the centre to the base, and 

 dividing into two parts a depressed area in which are several 

 minute perforations: an elevated transverse ridge separates this 

 area from two lateral depressed areas. On one side of i\w ooecium, 

 near the distal end, outside the mitriform area, are a few .small 

 perforations. 



Localiii/. — Geelong (J. F. Mulder). 



A single specimen. I place this in Strophipora on account of its 

 resemblance to S. triangularis. 



22a 



