Tertiary Folyzoa of Victoria. 165 



larium below aperture ; lateral avicularia facing backwards 

 with mandible pointing upwards. Dorsal surface smooth ; 

 zocEcia distinct, a narrow ridge dividing them longitudinally. 



Zoca/ttjf.— Spring Creek. (T. S. Hall). 



A single specimen. It is almost diaphanous and is partially 

 obscured by small fragments of matrix. The lateral avicularia 

 are peculiar in that they face backwards and can hardly be 

 detected on the front view ; their position, I think, precludes 

 the idea of their being vibracula, therefore I refer the species to 

 Menipea. 



Menipea bicellata, n. sp. (PI. XVII., Fig. 9). 



Zocecia in internodes of two only, broad above, attenuated 

 below ; aperture sub-circular with broad plate slanting inwards 

 on lower edge; four spines on upper margin; a small avicularium 

 below the lower lip, sometimes absent ; no lateral avicularia. 



Locality. — Moorabool and Muddy Creek. (T. S. Hall). 



Menipea biaviculata, n. sp. (PI. XVII., Fig. 10). 



Zoarium articulated (?). Zoa'cia biserial, elongate ; aperture 

 occupying two-thirds of the area ; margin granular ; a small 

 lateral marginal avicularium on the upper and outer angle of the 

 zotccia ; a large avicularium on the maigin near the base of the 

 zooecia on one side of the zoarium only. Zocecia defined on the 

 dorsal surface. 



Locality. — Aire River, Cape Otway. (Messrs. Hall and 

 Pritchard). 



I refer this to Alenipea, but the lai-ge marginal avicularia on 

 one of the two series of zocecia are very peculiar and more notice- 

 able on the dorsal aspect. The zoarium is probably articulated 

 as the structure of the upper part plainly indicates such, especi- 

 ally on the left hand side (in the figure). 



Cellaria contigua, McG. (PI. XVIL, Fig. 11). 

 In some material from Muddy Creek I have found a specimen 

 of this species in which there is an avicularian mandible iii situ. 

 As will be seen it is long, acute, slightly oblique, and extends 

 beyond the avicularian chamber, of which one, without the 

 mandible, from the same specimen, is drawn on the same scale. 



4a 



