106 
BEEENICEA. 
the specimens figured as Prohoseina suessi, Xov., is a young 
zoarium of this ‘ species.’ The Liastopora hagenowi of Tine is 
a zoarium in which most of the zooecia have been crushed in ; 
hut a few are preserved and show the typical flask-shaped form. 
The types of the same author’s P. hunstantonensk and D. jessoni 
are in the British Museum, and show the typical characters of 
B. contracta ; the latter is a young zoarium in the stage equivalent 
to that of the previously mentioned specimen of Prohoscina suessi. 
One of Vine’s figures (Q.J.G.S. vol. xlvii. pi. xix. fig. Hi) 
represents a zooecium expanded into what would be a gonoecium ; ^ 
hut I am unable to recognize this character in the specimen. 
Accepting Berenicea contracta as including the above-mentioned 
synonyms, it forms an exceptionally well - marked group. The 
only Jurassic Berenicea which presents any signs of close afiiDity 
with B. contracta is the B. saiivagei, Greg.,^ in which the zooecia 
are long and sinuous, and sometimes taper towards the distal end. 
The ‘ species ’ resembles B. compressa (Goldf.) ^ in the irregular 
form of the zoarium and the long, sinuous zooecia; but the 
zooecia in the Jurassic species are cylindrical and not club-shaped ; 
the gonocysts are also different, those of B. compressa being small 
and round and those of B. contracta large and irregular. 
Among Cretaceous ‘ species ’ its nearest allies are B. gracilis 
(Edw.), from which it differs by the greater length and shape of 
the zooecia, and B. papyracea (Orb.), in which the zooecia are 
longer and more regularly cylindrical. 
LIST OE SPECIMETIS. 
D. 2961. Encrusting Badiolitet mortoni. Upper Greensand, Cambridge. 
Jesson Coll. Figd. as Biastopora hagenowi, Vine : Proc. Yorks. 
Geol. Soc. vol. xi. pi. xii. figs, 9a, b. 
Figured PL IV. Figs. 8a and b. 
D. 2009. A zoarium, the type of Biastopora hunstantonensis, Vine : Quart, 
Journ. Geol. Soc. vol. xlvi. p. 475, pi. xix. fig. 10, encrusting 
a Terebratula biplicata. Eed Chalk. Hunstanton. Jesson Coll., 
No. Ic. On the same specimen is an encrustation marked 1b, 
figured as Proboscina angustata, Orh., hy Vine {pp. cit. pi. xix. 
fig. 1); and a specimen, probably a Foraminifer, recorded as 
Stomatopora gracilis (Edw.) by Vine {op. cit. p. 463). The tjpe 
of B. hunstantonensis is refigured on PL IV. Figs. 9a, b. 
1 See Gregory ; Cat. Jur. Bry. p. 12. ^ Cat. Jur. Bry. p. 82, pi. iii. fig. 4. 
3 Ibid. pp. 78-81, pi. iii. figs. 2, 3. 
