BRYOZOA FROM S.W. VICTORIA, AUSTRALIA. 



337 



larium surmounted by a denticle ; faint lines on the surface indicate 

 the zocecial divisions. Ovicell subimmersed, without any pores. 

 Loc. Not very common in Orakei Bay. 



48. Smittia centralis, sp. nov. 



Zoarium slender, erect, quadrangular, with the zooecia on all four 

 faces. Zooecia separated by a ridge, elongate, oblong, flat, with a 

 double row of pores on both sides of the zooecia near the edge, 

 with the peristome very much raised and projecting, with a large 

 pore (probably avicularian) immediately below the orifice ; peristome 

 transversely oval. 



49. Smittia centralis, var. l^vigata. Plate XIV. figs. 7, 8. 



Differs from the above in having the surface of the zooecia slightly 

 rounded ; and instead of the two rows of small pores, there are 

 a few elongate pores near the edge of the zooecia ; the peristome is 

 less well preserved ; and from these small fragments it would be 

 impossible to be sure of the generic position of the species. The 

 distal rosette-plates (fig. 8) are near the centre of the zoarium, from 

 which circumstance the name is chosen. 



50. Smittia Tatei, T. Woods. Plate XVII. fig. 65. 



Eschara Tatei, T. Woods, " On some Tert. Austr. Fossils," Tr. K. 

 Soc. X. S. W. 1876, p. 3, fig. xv. 



Zooecia elongate, with parallel sides, contracted below, surrounded 

 by a narrow raised margin ; two perforated furrows down the front. 

 Aperture raised, rounded, with a second rounded opening imme- 

 diately below (this is probably avicularian). Seen from the inte- 

 rior, there is a large denticle expanded at the top (fig. 65 a). 



Aperture 0*13 millim. wide. 



In consequence of the imperfect state of fossilization of the Mount- 

 Gambier fossils, the aperture presents the appearances figured by 

 Mr. Woods. A specimen in the collection of Mr. Etheridge, jun., 

 shows cells as figured by Mr. Woods, and resembling those from the 

 present collection. 



Loc. Fossil : Mount Gambier ( Woods and collection of Mr. Ethe- 

 ridge, jun.). 



51. Smittia anceps, MacG. Plate XVIII, fig. 94. 



Lepralia anceps, MacGillivray, Prodr. of Zool. of Vict, decade iv. 

 1879, p. 23, pi. xxxv. fig. 6. 



Zoarium cylindrical ; in one specimen four or five cells in a series, 

 in another a hollow cylinder 2-5 millim. in diameter. Zooecia sub- 

 rhomboidal, sometimes hollowed in front, elevated towards the ori- 

 fice, bounded by a prominent irregular sinuous line ; surface very 

 finely granulated, with large pores, more numerous near the edge. 

 Oral aperture rounded on the distal end ; the proximal edge is 

 formed by the arc of a smaller circle. 



When the aperture is seen from inside, we find a broad denticle 

 (fig. 94 a) ; and when we look upon this denticle from above, it is 



