208 Proceedings of the Royal Society of Victoria. 



irregularly disposed on the surface ; the sides with a regular 

 series of upright elongated pores. Thyrostome invisible, the 

 peristome being very much produced. 



Locality. — Mornington (T. S. Hall). 



The specimen figured is the only one I have found, it has 

 particles of pyrites scattered over it. It is a diilicult matter to 

 place this correctly, but I have provisionally placed it in 

 Corbulipora, as it appears to me to have an affinity to Corbielipora 

 ornata, McG. 



Micpopopella pugosa, n. sp. (PI. XXXIV, Fig. 10). 



Zooecia very flat, undefined but apparently hexagonal, with a 

 row of elongated pores round the mai'gins ; a few scattei"ed pores 

 on the surface ; two smaller ones below the thyrostome and below 

 and between them a deeper pore, appai-ently penetrating to the 

 zooecial chamber. Thyrostome subtriangular with five spines 

 round it ; between the marginal pores and the others the surface 

 is more or less raised into a rugose ridge. An aviculariuni, with 

 a long triangular mandible pointing upwards and outwards on 

 each side below the thyrostome. 



Locality. — Lower Beds, Muddy Creek (J. Dennant). 



The whole surface is very flat, and the margins of the zooecia 

 are only here and there perceptible. Tlie situation of the five 

 spines surrounding the upper part of the thyrostome is indicated 

 by pores, which, in many cases, have broken into the margin, 

 giving an irregular form to it, but in two cases the perfect form 

 is preserved. 



Leppalia bupjingtoniensis (Waters). PL XXXV., Fig. 11). 



This species recorded by Mr. Waters from Aldinga, River 

 Murray Cliffs, IMount Gambler, and Bairnsdale has not loeen 

 recorded by Dr. MacGillivray, though I have found it fairly 

 numerous in the deposits from Mitchell River, near Bairnsdale. 

 I have also found it in the upper and lower beds Muddy Creek, 

 Mornington, GriflSn's (Moorabool), Cape Otway, and Aire coastal 

 beds. I figure a specimen showing ooecia ; they are globose, 

 very much immersed, with pores on the upper portion ; the aper- 

 ture is arched above and the lower lip has a broad sinus. The 



