of the British Jurassic Bryozoa. 45 



Dacryopora Archiaci, Terquem, 1855, Pal. Moselle (sep. copy), p. 20. 

 Berenicea ventricosa, G. R. Vine, 1881, Diastoporidis Lias and Ool., 



Quart. Journ. Geol. Soc. vol. xxxvii. p. 385, pi. xix. figs. 15-17. 

 Berenicea oolitica, G. R. Vine, 1881, op. tit. p. 386, pi. xix. figs. 11-14. 



Diagnosis. — Zoarium discoid, a thin sheet. 



Zooecia not visible throughout their whole length, long, 

 cylindrical. 



Peristomes well raised, crowded at the margins, more 

 distant in the middle, irregularly arranged. 



Ooecia large, pyriform, closed sacs, which bulge out above 

 the general level of the zoarium, disposed somewhat irregu- 

 larly. 



Formula.-— 1 2 d 1. 



Distribution. — Mid Lias — Cornbrash, England. Lias — 

 Sequanian, Germany and France. 



8. Berenicea diluviana, Lamouroux, 1821. 



Berenicea diluviana, Lamouroux, 1821, Expos, nieth. p. 81, pi. lxxx. 



figs. 3, 4. 

 Non Diastojwra diluviana, M.-Edwavds, 1838, Me"m. Cris., Ann. Sci. 



nat. Zool. s4r. 2, t. ix. p. 228, pi. xv. tig. 3,. pi. xiv. fig. 4. 

 Reptomultisparsa diluviana, d'Orbigny, 1852, Pal. franc., Terr. cre"t. 



t. v. p. 876. 

 Rosacilla diluviana., Sauvage, 1889, Bry. Jur. Boulogne, Bull. Soc. geol. 



France, ser. 3, t. xvii. p. 44, pi. iv. fig. 11. 

 Diastojjora spatiosa, Walford, 1889, Bry. Shipton Gorge, Part I., Quart. 



Journ. Geol. Soc. vol. xlv. p. 573, pi. xvii. figs. 7, 8. 



Diagnosis. — Zoarium in large irregular encrusting sheets. 

 Young forms are flabelliform. 



Zocecia of medium length, cylindrical. Young, central 

 zooecia seen throughout ; the more adult, peripheral zooecia 

 are crowded and thus not wholly seen. Front wall plain or 

 crossed by faint transverse ridges. 



Peristomes slightly raised in peripheral zocecia ; central 

 ones almost flush ; irregularly distributed, but in large zooecia 

 there may be patches in which they are linear. 



Ooecia pyriform, fairly narrow, usually but slightly ex- 

 ceeding the zooecia in width. 



Formula.— 1-1" 2/0. 



Distribution. — Inferior Oolite — Corallian, England. Lias 

 — Bathonian, France, Germany, Austria. 



9. Berenicea parvitubulata, sp. n. 



Diagnosis. — Zoarium thin irregular sheets, much lobed 

 when large. 



Zooecia very narrow, cylindrical, of medium length ; central 



