104 
BEEENICEA. 
Affemties. 
The shape of the zoarium and the distribution of the peristomes 
in this Bryozoan are similar to the same characters in B. jeasoni 
(Vine), from which it differs owing to the greater size of the 
zooecia in the typical member of the ‘ species.’ 
The gonocysts are of the same type as those of B. papiJlosa 
(Ess.) ; hut the variety differs from that ‘ species ’ by the more 
widely spaced apertures and reniform shape of the zoarium. 
SPECIMEN. 
D. 4153. A zoarium encrusting a fragment of Inoceramut. Middle Chalk. 
Chatham. Gamble Coll. Pigd. PI. YU. Fig. 6. 
10. Berenicea contracta, Seeley, 1866. 
Sy^^ontmy. 
Berenicea contracta^ Seeley, 1866. Foss. Up. Greensd. Ilunst. : Ann. Mag. 
Nat. Hist. ser. 3, vol. xvii. p. 181. 
,, folium, Novak, 1877. Br)'. bohm. Kr. : Denk. Akad. Wiss. "Wien, 
vol. xiivii. pt. 2, p. 96, pi. iv. figs. 11-14. 
Biastopora ,, Pocta, 1892. Mech. Koryc. Hory : Ceska Akad. Fr. Jos. 
Praze, sect. ii. p. 15. 
Berenicea pilosa, Novak, 1877. Op. cit. p. 97, pi. iv. figs. 1-10. 
Biastopora ,, Pocta, 1892. Op. cit. p. 15. 
Proboscina suessi, pars, Novak, 1877. Op. cit. p. 103, pi. iv. figs, 25, 26 
(non pi. V. figs. 14-19). 
Biastopora hunstantonensis, Vine, 1890. Bry. Bed Chalk: Quart. Journ. Geol. 
Soc. vol. xlvi. p. 475, pi. xix. fig. 10. 
,, ,, var, o. Vine, 1890. Ibid. p. 475, pi. xix. fig. 11. 
,, jessoni. Vine, 1890. Ibid. p. 478, pi, xix. fig. 12. 
,, hagenowi. Vine, 1889. Proc. Yorks. Geol. Soc. vol. li, p. 266, 
pi. xii. fig. 9. 
Diagnosis. 
Zoarium discoid, reniform, or regularly flabelliform. 
ZocEcia visible throughout ; long and sinuous ; usually iiTegular 
in thickness, being expanded either at the base or at the 
distal end. The walls are plain or wrinkled. The apertures 
are distant, and irregularly arranged. 
Peristomes usually well raised. 
Gonocysts ovoid, granulate ; often irregularly T -shaped. 
