of the British Jurassic Bryozoa. 197 



2. Spiropora annulosa (Michelin), 1847. 



Cricopora annulosa, Michelin, 1847, Icon. Zooph. p. 339, pi. lvi. fig. 3. 

 Cricopora verticillata, non Goldf., Michelin, 1846, op. cit. p. 236, pi. lvi. 



fig. 3. 

 Laterotubigera verticillata, d'Orbignv, 1852, Pal. franc., Terr. cret. t. v. 



p. 715. 

 Cricopora tessonis, Michelin, 1846, Icon. Zooph. p. 236, pi. lvi. fig. 6. 

 Entalophora tessonis, d'Orbignv, 1849, Prod. Pal. t. i. p. 318. 

 Spiropora tessonis, Haime, 1854, Bry. jur., Mem. Soc. geol. France, 



ser. 2, t. v. p. 195. 

 Cricopora sub verticillata, d'Orbignv, 1849, Prod. Pal. t. i. p. 318. 

 Spiropora straminea (non Phill.), Haime, 1854, op. cit. ser. 2, t. v. 



p. 196, pi. ix. fig. 6. 

 Entalophora straminea (non Phill.), Brauns, 1879, Bry. mittl. Jura, 



Metz, Zeit. deut. geol. Ges. Bd. xxxi. p. 331. 

 Spiropora ccespitosa (non Lamx.), Haime, 1854, op. cit. p. 195 (excl. 



syn.), pi. ix. fig. 7. 

 Spiropora compressa, Haime, 1854, op. cit. p. 197, pi. ix. fig. 5. 

 Entalophora compressa, Vine, 1888, Polyz. Caen, Journ. Northampton 



Nat. Hist. Soc. vol. v. p. 10. 

 Cricopora acutimargo, Waagen, 1868, Zone Amm. Soiverbyi, Geogn. Pal. 



Beitr. Bd. i. Heft 3, p. 641, pi. xxxiii. fig. 7. 



Biagnosis. — Zoarium forming very loose tufts ; branches 

 dichotomize irregularly, of medium thickness ; section of 

 branches circular, oval, or compressed. 



Zocecia regularly cylindrical, rather short. 



Beristomes raised and arranged in regular rows ; these are 

 horizontal or slightly oblique ; from 5 to 7 peristomes can be 

 seen on one side of a branch ; the distance between the rows 

 of peristomes is short. 



Bistribution. — England : Inferior Oolite and Great Oolite. 

 Foreign : Bajocian, France and Germany. Batl 

 France. 



Ionian 



3. Spiropora ccespitosa, Lamouroux, 1821. 



ora ccespitosa, Lamouroux, 1821, Expos. m<§th. p. 86, pi. lxxxii. 



figs. 11, 12. 

 Non Spiropora ccespitosa, Haime, Bry. jur., Mem. Soc. geol. France, 



ser. 2, t. v. p. 195, pi. ix. tig. 7. 

 Cricopora ccespitosa, Blainville, 1830, Diet. Sci. nat. t. Ix. p. 386. 

 Entalophora ccespitosa, d'Orbigny, 1849, Prod. Pal. t. i. p. 318. 

 ? Spiropora capillaris, Lamouroux, 1821 , op. cit. p. 47. 

 Cricopora capillaris, Blainville, 1830, op. cit. p. 386. 

 Intricaria bajocensis, Defrance, 1822, Diet. Sci. nat. t. xxiii. p. 546, 



pi. xlvi. tig. 1. 

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

 Laterotubigera bajocensis, d'Orbigny, 1852, Pal. franc., Terr. cr<5t. t. v. 



p. 715. 

 Entalophora bajocensis, d'Orbigny, 1852, op. cit. t. v. p. 779. 

 Pustulopora tenuis, Waagen, Zone Amm. Sowerbyi, Geogn. Pal. Beitr. 



Bd. i. Heft 3, p. 641. 



