BEEENICEA. 
95 
AFErN-ITIES. 
This variety differs from B. regularise ambita, owing to the 
greater size of the zooecia, the more marked elevation of the 
peristomes, and the absence of the smooth selvage. 
The variety is named after ^r. Gamble, who had correctly 
identified one of the best of the specimens (D. 3924) as referable 
to B. regularis. 
LIST OF SPECIMEIIS. 
British. 
B. 1756. A zoarium encrusting an echinid fragment. Upper Chalk. South 
of England. Purchased. Figd. PL YI. Fig. 8. 
D. 3924. An irregular, thick zoarium, var. gambleie encrusting an echinid 
fragment (on slide) . Middle Chalk. Chatham. Gamble CoU. 
D. 520. A small zoarium of var. gamblei, encmsting an echinid spine (on 
sHde). Middle Chalk. Chatham. Gamble CoU. 
D. 3837. A zoarium of var. gamblei, encrusting an echinid fragment, with 
Proboscina angustata (Orb.) and Cribrilina, sp. (on sUde). Middle 
Chalk. Chatham. Gamble Coll. 
D. 4190. An irregular zoarium of var. gamblei, encrusting an echinid fragment 
(on slide). Middle Chalk. Chatham. Gamble CoU. 
D. 4105. A zoarium of var. gamblei, encrustino: a fragment of Inoceramus, sp., 
with .B. (Rss.), etc. Middle Chalk. Chatham. Gamble 
CoU. 
Foreign. 
D. 4386. Y ar. gamblei, encrusting Hemiaster, sp., with Proboscina sarthacensis 
(Perg.) and Membranipora, sp. Cenomanian. Yillers-sur-Mer. 
Presented by Wm. HUl, Esq. Figd. PI. YII. Fig. 7. 
5c. Berenicea regularis (Orb.), var. elliptica, nov. 
Yaeietal Chaeactees. 
Zoarium small and comparatively thin ; elliptical in shape ; 
surface fiat. Xo smooth selvage. 
Zooecia large and stout; peristomes crowded or fairly spaced; 
well raised ; regularly distributed. 
Dimensions. 
B.M. 
B.M. 
B.M. 
D.3927. 
D.3896. 
D.3901. 
Distance of peristomes in 
mm. 
mm. 
mm. 
same longitudinal series 
•5 
,. ’0 
. •5-'6 
Diameter of zooecia 
•2-*2o ., 
•25 
•25 
Diameter of aperture 
•15 
•u 
•11 
Diameter of zoarium 
5 X 3-0 
, . 3*0 X 4:“o , . 
. 3-5 X 5 
