152 



SPIROPORA. 



Intricaria bajocensis, Blainville, 1830, ibid. t. Ix. p. 420. 



,, ,, Blainville, 1834, Man. Act. p. 456, pi. Ixviii. fig. 1. 



,, ,, Bronn, 1835, Leth. Geogn. ed. 2, Bd. i. p. 242, pi. xvi. 



fig. 13. 

 ,, ,, M. Edwards, 1836, in Lamarck, Anim. s. Yert. ed. 2, 



t. ii. p. 195. 



,, ,, Murchison, 1845, Geol. Cheltenham, ed. 2, p. 72. 



,, Michelin, 1846, Icon. Zooph. p. 231, pi. Ivi. fig. 5. 



,, Bronn, 1848, Nomencl. p. 613. 



,, ,, Bronn, 1849, Enum. p. 129. 



,, D'Orbigny, 1849, Prod. Pal. t. i. p. 289. 



,, Bronn and Eomer, 1851, Leth. Geogn. ed. 3, Bd. ii. 



Th. 4, p. 84. 



Haime, 1854, op. cit. p. 196. 

 Ferry, 1862, Bajoc. Ma9on, pt. i. : Mem. Soc. linn. Norm. 



t. xii. p. 42. 

 E. E. Deslongchamps, 1865, Jur. inf. Norm. : ibid. t. xiv. 



p. 151. 



Vine, 1883, op. cit. p. 265. 

 Friren, 1893, Bry. ool. inf. Metz : Butt. Soc. Hist. nat. 



Metz, ser. 2, t. vi. p. 54. 



D'Orbigny, 1852, Pal. fran9. Terr. cret. t. v. p. 715. 

 D'Orbigny, 1852, op. cit. t. v. p. 779. 

 Pictet, 1857, op. cit. p. 134. 

 Vine, 1884, 4th Rep. Foss. Polyz. : Rep. Brit. Assoc. 



1883, p. 188. 



Waagen, 1868, Zone Amm. sowerlyi : Geogn. Pal. Beitr. 

 Bd. i. Ht. 3, p. 641. 



Spiropora 



Laterotubigera ,, 

 Entalophora , , 



Pustulopora tennis, 



DIAGNOSIS : 



Zoarium growing in dense tufts of long, slender, cylindrical 

 branches. These dichotomize repeatedly, and occasionally anas- 

 tomose. 



Zocecia regularly cylindrical. Peristomes slightly raised. Three 

 or four orifices seen on each side of a branch. Peristomal rows 

 very oblique, and crowded, therefore giving the apertures an 

 apparently quincuncial arrangement. At the ends of branches 

 the peristomes are irregular and low (form c&spitota, Lamx. and 

 Mich., non Haime). 



DISTRIBUTION. 



BRITISH : 



Forest Marble : Wiltshire. 



Great Oolite : Hampton ; Bradford, Wiltshire. 



Inferior Oolite : Nutgrove, Cheltenham. 



