114 REPORT — -1884:. 



Family IX. Microporid^i, Smitt. 

 Hincks, op. cit.J). 172. Membraniporiclce, (part). Busk. 

 'Zocecia with the front wall wholly calcareous; margins elevated.' 

 — Hincks, p. 172. 



This family group is a very important one, as it entirely eliminates 

 from the series all those forms that have a membranous area in the front 



of the cell. 



Genus Micropora, Gray. 



= Bept eschar ell ina, D'Orb. 



' Zoarium incrusting. Zocecia with prominent raised margins ; front 

 depressed, wholly calcareous ; orifice semicircular, or suborbicular, 

 enclosed by "a calcareous border.' — Hincks, p. 173. 



74. Micropora complanata, Norman (Hincks, p. 175) = Lepralia 



ibid., Norman, « A. M. N. H.' Jan. 18G4, p. 84, pi. x. fig. 4 == 

 Membranipora Smiiti, Manzoni, 4th Contr. ' Ital. Foss. Bryoz.' 

 Range. — Living, but of unknown locality : Italian Pliocene deposits. 



75. Micropora hippocrepis, Goldf. (' Petrefac' i. p. 26 ; tab. 9, f. 3) ; 



Waters, ' Quart. Jour. Geol. Soc' vol. xxxviii., p. 264 = Gellcpora 

 ibid., Reuss, ' Foss. Polyp, d. Wien. Tert,' p. 94 ; Hagenow, ' Die 

 Bry. Maest. Kreideb.' p. 91, pi. vi. fig. 17 = Membranipora 

 Helens, Busk, ' Crag Pol.' p. 34, and ' Quart. Jour. Geol. Soc' 

 vol. xvi., p. 260 = Membranipora Bosselii, Manzoni, ' Bri. Foss. 

 Ital.' 4th Contr. p. 11 = Membranipora Helens, Rss. ' Die Foss. 

 Bry. Ost.-ungar.' p. 43; Manzoni, 'Bri. Castrocaro,' p. 15; 

 Waters, ' Bry. from Bruccoli.' ' Tr. Manchester Soc' vol. xiv. 

 Range. — Fossil : Cretaceous, Maestricbt ; Miocene ; Pliocene Cor. 



Crag, Castrocaro ; Bruccoli, Sicily. Living, only at Capri, from the coral 



fisheries (A. W. W.). 



76. Micropora oudinata, Waters (Eschara form), Waters, op. cit., 



' Quart. Jour. Geol. Soc' vol. xxxix., p. 435. No figures. 



77. Micropora cavata, Waters (Eschara form), Waters, op. cit., 



' Quart. Jour. Geol. Soc' vol. xxxix., p. 435. No figures. 

 Bange. — Miocene ; Australia, Waurn Ponds. 



Genus Steganoporella, Smitt. 



Membranipora, (part) auctt. ; Beptescharellina, (part) D'Orb. ; Smitt, 

 'Flor. Bry.' Steganoporella. 



' Zoarium incrusting or (occasionally) rising into foliaceous expan- 

 sions. Zocecia with the external characters of Micropora, but having an 

 inner chamber occupying the whole of the cavity below, and above 

 narrowed into a tubular passage, which either communicates directly with 

 the orifice or opens into a second chamber immediately beneath it.' — 

 Hincks, p. 176. 



78. Steganoporella Smittii (Hincks, p. 178) = Membranipora Ande- 



gavensis, Busk, 'Crag Pol.' p. 35, pi. ii. figs. 5 and 9. 

 Bange. — Coralline Crag. 



79. Steganoporella patula, Waters, ' Quart. Jour. Geol. Soc' vol. 



xxxviii., pi. ix. fig. 31, p. 265 (Micropora patula, Waters), loc. 

 cit., Aug. 1881. 



80. Steganoporella magxilabris, Busk (' B. Mus. Cat.' p. 59), ' Quart. 



Jour. Geol. Soc' vol. xxxviii., p. 265 = Steganoporella elegans, 



