E. Neaverson—Foraminifera of the Hartwell Clay. 463 
figured specimen from the Gault of Folkestone, now in the Jermyn 
Street Museum. This species is recorded from the Speeton Clay of 
Germany (Reuss) and the Gault of Folkestone (Chapman). 
Localities: Hartwell (c.), Aylesbury (v.r.), Wheatley, bed 2 (f.), 
Bierton (r.), Long Crendon (r.). 
Vaginulina harpa Roemer. (Pl. IX, Fig. 7.) 
Vaginulina harpa Roemer, 1841 ; Verst. norddeutsch. Kreide, p. 96, pl. xv, fig. 13. 
Ve Lear 1862; Sitz. k. Akad. Wiss. Wien., vol. xlvi, p. 51, pl. iv, 
gs. o-/. 
Specimens from the Hartwell Clay referred to this species are very 
variable in outline, but the type of ribbing is constant. V. harpa 
is recorded from the Upper Hils and Speeton Clay of Germany 
(Reuss), the Lower Portland of Bucks (H. B. Woodward), the 
Hartwell Clay (Chapman), and older Jurassic deposits (see later). 
Localities: Hartwell (c.); Aylesbury (f.); Buierton (r.); 
Whitchurch (f.); Long Crendon (v.r.); Wheatley and Shotover 
Hill, bed 2 (c.), bed 1 (a.). 
Vaginulina incompta Reuss. (Pl. IX, Fig. 4.) 
Vaginulina incompta Reuss, 1862; Sitz. k. Akad. Wiss. Wren., vol. xlvi, 
p. 45, pl. iii, fig. 5. 
V. incompta Sherlock, 1914; Gror. Maca., p. 260, pl. xix, fig. 10. 
One specimen from the Hartwell Clay is referred to this species, 
which is recorded from the Upper Hils of Germany (Reuss) and the 
Speeton Clay of Yorkshire (Sherlock). 
Locality : Hartwell (v.r.). 
Vaginulina legumen (Linn.). 
Nautilus legumen Linné, 1758; Syst. Nat., 10th ed., p. 711, No. 248; 1767, 
12th ed., p. 1164, No. 288. 
Vaginulina leyumen Brady, 1884 ; Chall. Rep., vol. ix, p. 530, pl. Ixvi, figs. 13-15. 
This species ranges from Triassic to Recent. It is common in 
existing seas in shallow water (to 2,000 fath.), and is occasionally 
found in deep water (Brady). 
Locality : Hartwell (v.r.). 
CRISTELLARIA Lamarck, 1816. 
Cristellaria humilis Reuss. 
Cristellaria humilis Reuss, 1862; Sitz. k. Akad. Wiss. Wien., vol. xlvi, p. 65, 
pl. iv, fig. 16, 17. 
C. humilis Chapman, 1894; Journ. Roy. Micr. Soc., p. 648, pl. ix, fig. 7. 
This form was originally described from the Upper Hils of 
Germany, and has since been recorded from the Gault of Folkstone 
(Chapman) and the Hartwell Clay (Chapman). 
Localities: Hartwell (c.); Long Crendon (v.r.); Wheatley, 
bed 2 (f.); Shotover Hill, bed 1 (a.). 
Cristellaria italica (Defr.). 
Saracenia italica Defrance, 1824; Dict. Sci. Nat., xxxii, 177; xlvii, 334; 
Atlas Conch., xiii, 6. 
Cristellaria italica Brady, 1884 ; Chall. Rep., vol. ix, p. 545, pl. Ixviii, figs. 17, 
20-23. 
C. italica Chapman, 1894; Journ. Roy. Micr. Soc., p. 653, pl. x, fig. 10. 
