of the British Jurassic Bryozoa. 153 



2. Diastopora Davidsoni^ Haiine, 18)4. 



Diastopora Davidsoni, Haiine, 1854, Bn'. Jar., M^m. Soc. g6ol. France, 



ser. 2, t. V. p. 185, pi. viii. fig. 9. 

 Diastopora Wrighti, Haiine, 1854, op. cit. p. 18G, pi. viii. fig. 5. 

 Diastopora foliacea (noii Lamx.), Morris, 1843, Cat. Brit, Foss. p. 35 



( fide Haime). 

 Diastopora Terqiiemi, Haime, 1854, op. cit. p. 187, pi. viii. figs. 7 a-d. 

 Diastopora scobimda (non Mich.), Haime, op. cit. p. 186, pi. viii. fig. B. 

 Mesenteripora scohinula (non Mich.), Sauvage, 1889, Bry. Jur. Boul., 



Bull. Soc. g6ol. France, s^r. 3, t. xvii. p. 49. 



Diagnosis. — Zoarium loose, composed of broad and fairly 

 flat fronds ; bilaminate. 



Zocecia visible throughout their length or almost so ; their 

 length is medium, and in shape they are regularly cylin- 

 drical. 



Peristomes slightly raised, but not reflexed ; they are 

 mostly arranged in fairly regular oblique lines. 



Formula. — 1 2 ?• 0. 



Distribution. — England : Inferior Oolite and Great Oolite. 

 Foreign: Bajocian, France and Germany; Bathonian, 

 France. 



o. Diastopora Michelini (Blainville), 1830. 



Mesenteripora Michelini, Blainville, 1830, Diet. Sci. nat. t. Ix. p. 397. 

 Diastopora Michelini, M.-Edwards, 1838, M6m. Oris., Ann. Sci. nat. 



Zool. st5r. 2, t. ix. p. 226, pi. xiii. fig. 1. 

 Bidiastopora Micheliyii, d'Urbigny, 1849, Prod. Pal. t. i. p. 317. 

 Mesenteripora dcedalea, Blainville, 1830, Diet. Sci. Nat. t. Ix. p. 397. 

 Diastopora foliacea (non Lamx.), Michelin, 1846, op. cit. p. 239, pl. Ivi. 



fio-. 8. 

 Bidiastopora microphylla, d'Orbigny, 1849, Prod. Pal. t. i. p. 317. 

 Mesenteripora microphylla, d'Urbigny, 1852, Pal. fran^., Terr. cr^t. t, v. 



p. 808. 

 Diastopora microphylla? ,^a\me, 1854, Bry. Jar.,M6m.Soc. geol. France, 



st5r. 2, t. V. p. 191. 

 Bidiastopora latifolia, d'Orbignv, 1852, Pal. frau?., Terr. criJt. t. v. 



p. 799. 

 Diastopora latifolia, Haime, 1854, op. cit. p. 191. 

 ? Diastopora confeiia, Keuss, 1867, Bry. braun. Jura Balin, Denks. k. 



Akad. Wiss. Wien, Bd. cxxvii. p. 10, pl. ii. fig. 6. 



Diagnosis. — Zoarium hemispherical, formed of interlocking 

 contorted bilaminate fronds. The surface appears cerebri- 

 form, as the sinuous edges of the fronds are separated by 

 narrow depressions. 



Zocecia short and very crowded, only visible at the distal 

 end. 



