458 EH. Neaverson—Foraminifera of the Hartwell Clay. 
Family LITUOLIDZ. 
SUBFAMILY LITUOLINA. 
. ReopHax, Montrort, 1808. 
Reophax scorpiurus, Montfort. 
Reophax scorpiurus Montiort, 1808 ; Conchyl. Systéme, vol. i, p. 330, 83° genre. 
Reophax helvetica Haeusler, 1883; Q.J.G.S., vol. xxxix, p. 27, pl. ii, figs. 8-10. 
Reophax scorpiurus Sherlock, 1914; Gnox. Maa., p. 221, pl. xviii, fig. 1. 
A few specimens appear to belong to this species, but they are 
small and ill-developed. &. scorpiurus has been recorded from the 
Swiss Jurassic (Haeusler), the Oolite of Fontoy, Moselle (Terquem), 
the Gault of Folkestone (Chapman), and the Speeton Clay of York- 
shire (Sherlock). At present it has a world-wide distribution at 
depths varying from 3 to 3,960 fathoms (Brady). 
Localities: Hartwell (v.r.); Whitchurch (v.r.); Wheatley, 
bed 2 (r.); Shotover Hill, bed 1 (v.r.). 
HAPLOPHRAGMIUM Reuss, 1860. 
Haplophragmum acutidorsatum Hantken. 
Haplophragmium acutidorsatum Hantken, 1868; Magyar féldt. tarsulat, B. 4, 
S. 82, Taf. i, fig. 1. 
H. acutidorsatum Chapman, 1892; Journ. Roy. Micr. Soc., p. 4, pl. v, fig. 11. 
This is probably the form recorded by H. B. Woodward from the 
Lower Portland of Bucks as Lituola nautiloidea Lam.! It resembles 
H. emaciatum Brady, which, however, is an evolute form, whilst 
H. acutidorsatum isinvolute. The latter is known from the Tertiaries 
of Hungary (Hantken) and the Gault of Folkestone (Chapman). 
H. emaciatum is a shallow-water form occurring in the West Indies 
(Brady). 
Localities: Hartwell (c.); Long Crendon (v.r.); Wheatley, 
bed 2 (v.r.). 
Haplophragmium cequale (Roemer). 
PEO: Roemer, 1840 ; Verst. norddeutsch. Kreidegeb., p. 98, pl. xv, 
g. 27. 
Haplophragmium equale Reuss, 1862; Sitz. k. Akad. Wiss. Wien, xlvi, p. 29, 
pl. i, figs. 1-7. 
H. cequale Chapman, 1892; Journ. Roy. Micr. Soc., p. 5, pl. vi, figs. 1-3. 
One specimen is referred to this species which was first recorded by 
Roemer from the Chalk of North Germany. It has since been found 
in the Upper Hils and Speeton Clay of Germany (Reuss) and the 
Gault of Folkestone (Chapman). 
Locality : Long Crendon (v.r.). 
Subfamily TROCHAMMININ AL. 
THURAMMINA Brady, 1879. 
Thurammina albicans Brady. (Pl. IX, Fig. 11.) 
Thurammina albicans Brady, 1879; Q.J. Micr. Soc., vol. xix, N.S., p. 27. 
T. albicans Brady, 1884; Chall. Rep., vol. ix, p. 323, pl. xxxvii, figs. 2-7. 
T. albicans Chapman, 1892; Journ. Roy. Micr. Soc., p. 7, pl. vi, fig. 9. 
1 Mem. Geol. Surv., M. and U. Oolite, 1895, appendix, p. 400. 
