48 A Revision of the British Jurassic Bryozoa. 



Diagnosis. — Zoarium a thick circular disk. 



Zoacia crowded, so only visible for distal portions ; cylin- 

 drical, punctulate, slightly above medium length. 



Peristomes well raised, disposed on a slightly irregular 

 quincuncial arrangement. 



0(£cia large, irregular, a third or a quarter of a zooecium 

 in width. 



Formula.— 2 1" d \. 



Distribution. — Inferior Oolite — Cornbrash, England. Ba- 

 jocian — Kimeridgian, France and Germany. 



14. Berenicea exilis, Reuss, 1867. 



Berenicea exilis, Reuss, 18(37, Bry, braun. Jura Balin, Denk. k. Akad. 



Wiss. Wien, Bd. cxxvii. p. 8, pi. ii. fig. 3. 

 Diastopora cricopora, Vine, 1881, Further Notes Diastopora, Quart. 



Journ. Geol. Soc. vol. xxxvii. p. 387, pi. xix. figs. 18-25. 



Diagnosis. — Zoarium thin irregular sheets. 



Zooecia crowded and visible only at the ends. 



Peristomes well raised, irregularly distributed ; those of 

 adjoining parallel zooecia distant from one another from two 

 to three times their diameter. 



Ooecia small, round, hemispherical, equal in width to two 

 or three zooecia. 



Pormula. — 2 1 t 1. 



Distribution. — Inferior Oolite : Cornbrash, England. Ba- 

 thonian, France and Austria. 



Indeterminable Species recorded in Britain. 



1. Berenicea crussolensis (Dumortier). 



Diastopora crussolensis, Dumortier, 1874, Etud. Pal. Dep. Jur. Rlioiie, 



t. iv. p. 226, pi. xlviii. figs. 11, 12. 

 Non Diastopora crussolensis, Vine, 1883, 3rd Rep. Foss. Biy., Rep. 



Brit. Assoc. 1882, p. 264. 



Distribution. — Upper Lias : Crussol, France. 



2. Berenicea? margojjunctata, Waagen, 1868. 



? Berenicea margopunctata, Waagen, 1868, Pal. Geogn. Beitr. Bd. i- 

 pp. 535, 646, pi. xxxii. fig. 12. 



? Berenicea cf . margopunctata, Walford, 1883, Relation of Northamp- 

 ton Sand, Quart. Journ. Geol. Soc. vol. xxxix. p. 239. 



Distribution. — British : Inferior Oolite, Coombe Hill {fide 

 Walford). Foreign : Bajocian, Wiirtemburg. 



