4 
Transactions of the Society. 
snbangulate variety, but of a somewhat different type (probably 
G. rotulata var. macrodiscus Reuss, lias been figured and described 
under the name of G. polygona, by Dr. Berner,* from the Cenomanian 
strata of Bohemia. 
The type-form C. secans was found in the Minimus -clay of the 
Rhine and other places by Reuss. 
C. secans var. angulosa occurred in the Folkestone Gault in 
zone xi,, 6 ft. from the top, rare. 
Cristellaria nodosa Reuss sp., plate I. fig. 5 a, h. 
Bobulina nodosa Reuss, 1862, Sitzungsb. d. k. Ak. Wiss. Wien, 
vol. xlvi. p. 78, plate ix. fig. 6 a, b. 
The specimens from the Upper Gault of Folkestone are very 
close in character to the figure given by Reuss. That author’s speci- 
mens were obtained from the Upper Eils-clay of North Germany. 
C. nodosa was found at Folkestone in zone xi., 20 ft. from the 
top, very rare ; 6 ft., very rare. 
Cristellaria convergens Boruemann, plate I. fig. 6 a, b. 
C. convergens Bornemann, 1855, Zeitschr. d. deutscli. geol. 
Gesellsch., vol. vii. p. 327, plate xiii. figs. 16, 17. C. convergens 
Brady, 1884, Chalk Rep., vol. ix. p. 546, plate lxix. figs. 6, 7. 
This is quite an uncommon form in the Gault, and is perhaps a 
deep-water variety of C. oligostegia in this instance, since the broad 
septal face resembles that of the latter species. 
G. convergens has been recorded from the Pebble-beds of Neo- 
comian age in Surrey (Chapman), and was originally described from 
the Tertiary of Hermsdorf (Bornemann). As a recent form, it is found 
in deep-water. 
At Folkestone this species was collected from zone v., very rare ; 
zone xi., 6 ft. from the top, rare. 
Cristellaria gibba d’Orbigny, plate I. fig. 7 a , b. 
C. gibba d’Orbigny, 1826, Ann. Sci. Nat., vol. vii. p. 292, No. 17. 
C. gibba Idem, 1839, Foram. Cuba, p. 40, plate vii. figs. 20, 21. 
G. nuda Reuss, 1861, Sitzungsb. d. k. Ak. Wiss. Wien, vol. xliv. 
p. 328, plate vi. figs. 1-3. G. nuda (var. on plate VIII.) Idem, 
1862, ibid., p. 72, plate viii. fig. 2 a , b. C. pulchella Id., 1862, ibid., 
p. 71, plate viii. fig. 1 a , b. G. gibba Brady, 1884, Chalk Rep., 
vol. ix. p. 546, plate lxix. figs. 8, 9. C. gibba Burrows, Sherborn, 
and Bailey, 1890, Journ. Roy. Micr. Soc., p. 559, plate X. figs. 19 a, b 
and 21. G. gibba Crick and Sherborn, 1891, Journ. Northamp. Nat. 
Hist. Soc., vol. vi. p. 212, plate, fig. 29. 
C. gibba is a very widely distributed species, although at no time 
does it appear to have been very commpn. It belongs to the group 
V 
* ‘ Foraminifery Ceskeho Csnomami,’ Prague, 1892, p. 63, pi. v. figs. 3, 4. 
