Mr. A. W. Waters oyi Australian Bryozoa. 13 



In the Taliiti form there is more of a peristome than in the 

 variety, and some zooecia have a broad avicuLarium at the 

 side of the peristome which does not occur in the specimens 

 from Green Point, where the variety is common. 



Lepralia lonchcea, B., is so closely allied to the typical L. 

 vestita that I doubt whether it shoukl be separated. 



Lepra,lia elimata, Waters. 



In young zooecia from Green Point there are supraoral 

 spines. 



Lepralia rectilineata, Hincks. 



Lepralia rectilineata, Hincks, Ann. & Mag. Nat. Hist. ser. 5, vol. xi. 

 p. 201, pi. vii. fig. 5; Waters, Quart. Joiirn. Geol. Soc. vol. xliii. 

 p. 60, pi. vii, fig. IG, pi. viii. figs. 34, 35, 36. 



There are only two or three zooecia from Green Point ; but 

 there is no mistaking their identity with the New Zealand 

 form. 



Loc. Living : New Zealand ; Green Point. Fossil : New 

 Zealand. 



Lepralia depressa, Busk. (PI. I. figs. 13-16.) 



Lepralia depressa, Busk, Cat. Mar. Polyzoa, p. 75, pi. xci. figs. 3, 4. 

 EschareUa rostriyera, Smitt, Floridan Bryozoa, Sv. Vet.-AJk. Handl. 

 n. ser. xi. p. 57, pi. x. figs. 203-205. 



This was not recognized as identical with Mr. Busk's L. 

 depressa until I had an opportunity of examining the British 

 Museum specimens. 



The bright red zoarium is incrusting. Zooecia irregularly 

 rectangular, distinctly separated, with pores round tlie border. 

 Oral aperture with straight sides and triangular proximal end, 

 a small round avicularium at each side ; sometimes an umbo 

 on the middle of the zooecium, and from decalcified prepara- 

 tions this umbo appears to be sometimes perforate. The ovi- 

 celligerous cells have the aperture (0'13 millim.) much larger 

 than that of the other cells (0*09 millim.) ; there is often an 

 avicularium above tlie ovicelligerous aperture, and the distal 

 end of these zooecia is somewhat raised. 



tSmitt gives the avicularia of various shapes. 



The ordinary and ovicelligerous zooecia are now known to 

 have different or larger apertures in several genera, as, for 

 instance, in Crihrilina clithridiata, Schizoporella hyalina^ S. 

 JacksoniensiSj B., Lepralia bistaia, W., Monoporella waipu- 



