EXTALOPHOEA. 
223 
Les Roches, one of the two localities whence d’Orhigny records this 
species, are very similar to the figures, hut are certainly Entalopliora. 
But, without re-examining the type, IE. Pergens’ opinion must he 
accepted. 
The nearest ally of E. vtrgula among Lower Cainozoic species is 
E. attenuata (Stol.), from the German Oligocene. The figure of 
the type ^ of E. attenuata appears to be magnified ten diameters ; 
if so, the zooecia are *5 mm. in diameter and the apertures *3 mm. 
in width. In that case the zooecia are larger than in the Cretaceous 
species, and thus E. attenuata may prove to be distinct. 
LIST OF SPECIMENS. 
British. 
D. 461. 
D. 4516. 
D. 2836. 
D. 376. 
D. 4512. 
D. 1001. 
B. 4447. 
B. 1871. 
A zoarium paitlv imbedded in flint: the t^•pical raripora of d’Orbigny. 
Middle Chalk. Chatham. Gamble Coll. Figd. PL X. Fig. 1.' 
Tivo zoai'ia (on flint). Middle Chalk. Chatham. Presented by 
"Wm. Gamble, Esq., January, 1889. Figd. PI. X. Fig. 2. 
Three fragments of the var. altei'uata, Orb. (on slide). Upper Chalk. 
Bromley. Simmons Coll. Figd. PL X. Fig. 3. 
Four fragments of the var. siibgracilis, Orh. (on slide). Middle 
Chalk. Chatham. Gamble Coll. Figd. PL X. Fig. 4. 
A base of a young specimen of form raripora. Orb. Middle Chalk. 
Chatham. Gamble Coll. Figd. PL XI. Fig. 2. 
A Avorn basal fragment resembling Entalophora rariegata, Orb. (on 
slide). Upper Chalk. Gravesend. Vine Coll. Figd. PL XI. Fig. 16. 
A slide with six fragments of Bryozoa. Upper Greensand. Cambridge. 
Xo. 1. E, virgula, t}q)ical form. Figd. PL XI. Fig. 18. 
Xo. 2. Indeterminable. 
Xo. 3. Basal part of Spiropora macropora (Orb.), ydcr. jessoni. 
PL XI. Fig. 10. 
Xo. 4. Basal fragment indeterminable. 
Xos. 5 and 6. Clmopora striatopora (Vine). 
Two of the fragments are recorded as the types of Vine’s E. raripora 
(Proc. Yorks. Geol. Soc. vol. ix. pi. i. flgs. 1,2), and are therefore 
the types of E. probosciclea, var. elegans, Vine, 1889. 
Six fragments on slide, identified by Vine as E. probosciclea, var. 
elegans. Vine. Polyz. Greensand, pt. ii. : Proc. Yorks. Geol. 
Soc. 1889, vol. xi. p. 260. Upper Greensand. Cambridge. 
Jesson Coll. 
Xos. 1, 4, 5, and 6. E. virgula (Hag.). 
Xos. 2 and 3. Indeterminable. 
1 Stoliezka, Bry. Latdorf, Sitz. Ak. Wiss. AVien. vol. xlv. (1862), p. 77, 
pi. i. fig. 1 ; and von Reuss, Pal. Stud. iilt. Tert. Alpen, ii. Crosara, Denk. 
Ak. Wiss. Wien. vol. xxix. (1869), p. 286, pi. xxxvi. figs. 1, 2. 
