8 RICHARD HOLLAND. Schvved. Südpolar-Exp. 
Cassidulina crassa has a world wide range in recent seas and has been recorded 
from all depths down to about 3,000 fathoms. 
In a fossil condition the species has been recorded only from tertiary and Post- 
tertiary deposits. 
Family Lagenidæ. 
Sub-Family Lageninæ. 
Genus Lagena, WALKER and BOYS, 1784. Test one chambered, free, oval, oblong, 
or fusiform, sometimes compressed on two or more sides. Aperture normally single 
and ecto- or ento-solenian. Shell wall finely perforate. Texture hyaline. 
Lagena globosa, (Montagu). 
Plate II. Figs 8 and 9. 
Serptila {Lagena) lœvis globosa^ Walker and Boys, 1784. Test. Min. p. 3, pi. I, fig. 8. 
Vermicitltun globosum, Montagu, 1803, Test. Brit., p. 523. 
Lagena globosa, Parker and Jones, 1859, Ann. N. Hist. 3rd. set., vol.IV, p. 341. 
> > Brady, Rep. ChalL, 1884, p. 452, pi. LVI. figs, i, 2 and 3. 
Test sub-globular, pyriform, or elliptical; aperture situated in an ento-solenian 
neck. Surface smooth. 
Lagena globosa is found in all seas without restriction as to latitude or depth. 
It is also of very wide distribution and has been recorded from nearly all horizons 
om the Upper Silurian to the Post- tertiary. 
Sub-Family Nodosarinæ. 
Genus Cristellaria, Lamarck, 1816. Test polythalamous, planospiral in part 
or entirely; complanate, lenticular, crosier-shaped or ensiform; aperture terminal or 
peripheroterminal. 
Cristellaria gibba, d’Orbigny. 
Plate II. Fig. 3. 
Cristellaria gibba, D’orbign'Y, 1839. Fornm. Culja. p. 63, pi. 7, figs. 20. 21. 
» > Brady, 1884, Rep. Chall., p. 546, pi. LXIX, figs. 8, 9. 
As Brady remarks (Rep. Chalk p. 546) -»Cristellaria gibba occupies an inter- 
mediate position as one of the transition forms connecting the elongate compressed 
