ON FOSSIL TOLYZOA. 119 



103. Microporella .enigmatica, Waters (Z. c. vol. xxxvii., p. 331), 



pi. xv. figs. 29-30. Mt. G-ambier. 



104. Microporella symmetrica, Waters (I. c. vol. xxxvii., p. 331), 



pi. xviii. fig. 83. Mt. Gambier. 



105. Microporella clavata, Stol. (/. c. vol. xxxvii., pi. xviii. fig. 



%4< = Flustrella, ibid., Stol. Toss. Bry. Orak. Bay,' p. 139. 

 Mt. Gambier (?) Eschar a tetrastoma, Reuss, ' Sitz. Ak. W. 

 Wien,' 1864. Mt. Gambier. 



106. Microporella macropora, Stol. (Lepralia forma). (Waters, 



' Quart. Jour. Geol. Soc' vol. xxxviii., p. 267) = Lepralia ibid., 

 Stol. ' Olig. Bry.' 

 Range. — New species : Waters, Mt. Gambier, Victoria (S.W.) ; Bairns- 

 dale, Australia. 



107. Microporella decorata, Reuss (Cellepora id.), Waters, 'Quart. 



Jour. Geol. Soc' vol. xxxviii., p. 508, pi. xxii. fig. 1 = Cellepora 

 ibid., Rss. 'Foss. Pol. Wien. Tert.' p. 89, pi. x. fig. 25 = 

 Lepralia ibid., Manzoni, ' Bry. Foss. 2nd Cont. Bry. Castrocaro ' 

 = Lepralia ibid. Seguenza = Lepralia Stori, Rss. ' Bry. Ost.- 

 ung.' = Lepralia formosa (?), Seguenza. 

 Range. — Miocene, Hungary; Australia Bairnsdale; Pliocene, Castrocaro 

 (Manzoni). Living, Madeira (30 iath.). 



108. Microporella cellulosa MacGil. (forma Adeona), Waters 



' Quart. Jour. Geol. Soc' vol. xxxix., p. 437 = Lictyopora ibid., 

 Mac G., 'Trans. Roy. Soc. Vic' 1868 = Adeona ibid., Kirchen- 

 pauer. 

 Range. — Fossil: Muddy Creek, Australia (Waters). Living: Queens- 

 cliffe. 



109. Microporella introyersa, Waters, loc. cit., vol. xxxviii., pi. ix. 



figs. 33-34. This would be Diporula, Hincks. 

 Range. — Mt. Gambier, South Australia. 



Genus Diporula, Hincks. 



Distinguished from Microporella by the structure of the orifice. The 

 genus is founded upon a single species, Diporula (Eschara) verrucosa, 

 Peach. Mr. Hincks cites as a synonym E. lunaris, Waters. 



110. Diporula lunaris, Waters, ' Bryoz. from Pliocene of Bruccolo, 



Sicily,' 'Trans. Manchester Geol. Soc' 1878= ? Porellina 

 labiata, Roemer — ' I believe this is the same,' Waters. 

 Range. — Living : Sicilian Pliocene, Waters ; Oberoligocan, Lattorf, 

 Roemer. 



Genus Chorizopora, Hincks. 



Flustra, sp. Audouin : Lepralia, sp. Johnst. and Busk ; Mollia, pt., 

 D'Orb. 



' Zotpcia more or less distant, connected by a tubular network ; the 

 orifice semicircular, with the inferior margin entire; the special pore 

 wanting.' — Hincks, p. 222. 



This peculiar genus is founded upon the Flustra Brongniartii of 

 Audouin. In his description of Lepralia Brongniartii, And. (' Bay of 

 Nap. Bry,' p. 35, 'Ann. M. N. Hist.') Mr. Waters says the 'connections 

 between the zooecia are short tubes as shown in Savigny's fig. . . . 

 This is interesting as showing the first step towards more widely 

 separated cells, like Diachoris : and Hutton calls a form closely allied to 



