of the British Jurassic Bryozoa. 43 



Formula.— 1 3/0. 



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

 Corallian, Germany and Austria. 



3. Berenicea Sauvagei, sp. n. 



Diagnosis. — Zoarium of large thin circular disks. 



Zoacia very long, cylindrical, sometimes expanded a little 

 below the orifice; visible throughout their length; slightly 

 sinuous ; minutely punctulate. 



Peristomes slightly raised, distributed regularly in a quin- 

 cuncial pattern. 



Formula. — 1 3 d 1. 



Distribution. — Bradford Clay, Bradford, Wilts. 



Affinities. — This species resembles B. Archiaci in its long 

 zooecia, but it has no known ooecia ; the zoaria are larger ; 

 the zooecia are longer, more sinuous, and not so markedly 

 radial in arrangement. It is nearer to B. Allaudi, from which 

 it differs in the quincuncial arrangement of the orifices and 

 the greater length of the zooecia. 



Among the species with irregular zoaria it must be com- 

 pared with B. compressa (Goldf.). With this it agrees in 

 the length of its zooecia, their faint punctulation, and the slight 

 expansion just below the raised portion of the orifice. The 

 species differ, however, in the greater distance of the orifices 

 in the old species, and their very irregular distribution. One 

 has only to compare the crowded regular quincuncial orifices 

 of B. Sauvagei with Vine's figure {op. cit. pi. xix. figs. 3 and 7) 

 to see the extent of this difference. 



Diagnosis. — Zoarium small, discoid. Zooecia arranged at 

 first on a somewhat flabelliform plan. Borders of zoarium a 

 little irregular. The zoarium is a thin sheet. 



Zooecia long, cylindrical ; front wall ornamented by several 

 sharp ridges, usually five or six on each zocecium. Zooecia 

 visible throughout their length. 



Peristomes flush or raised on lower margin, circular. 



Formula.— 0-0" . 3 d 0. 



Distribution. — Portland Oolite, Tisbury, Wilts. 



Affinities. — This species greatly resembles Haime's figure 

 of Berenicea striata (Jur. Bry. pi. vii. figs. 8 a, b), owing to 

 the transverse ribbing. The two species are closely allied ; 

 thus, B. striata has a formula of 1 12/0. The differences 

 between the zooecia of the two species are that those of striata 



