265 
Beport on Foraminifera. By F. W. Millett . 
Spiroloculina tenuiseptata Brady. 
Spiroloculina tenuiseptata Brady, 1884, Chall. Bept., p. 153, 
pi. x. figs. 5, 6. S. tenuiseptata (Brady) Egger, 1893, Abliandl. d. 
k. bayer. Akad. d. Wiss., Cl. II. vol. xviii. p. 223, pi. i. figs. 48, 49. 
Found only at Station 2, and there very rare and poorly de- 
veloped. Brady lias it from the Ki Islands and two other localities, all 
over 500 fathoms. Egger’s rather doubtful form is from the West 
Coast of Africa, about 10° north of the equator, depth about 370 
fathoms. 
Spiroloculina crenata Karrer. 
Spiroloculina crenata Karrer, 1868, Sitz. k. Akad. Wiss. Wien, 
vol. lviii. Abth. i. p. 135, pi. i. fig. 9. S. crenata (Karrer) Brady, 
1884, Chall. Kept., p. 156, pi. x. figs. 24-26. S. crenata Murray 
and Benard, 1891, Chall. Kept., pi. xiv. fig. 2 17 . S. crenata (Karrer) 
Egger, 1893, Abliandl. d. k. bayer. Akad. d. Wiss., Cl. II. vol. xviii. 
p. 225, pi. i. figs. 42, 43. 
Found in both Areas, but most abundantly in No. 1. 
Spiroloculina nitida d’Orbigny, plate Y. figs. 9-13 a, b. 
Spiroloculina nitida d’Orbigny, 1826, Ann. Sci, Nat., vol. vii. 
p. 298, No. 4. S. nitida (d'Orb.) Brady, 1884, Chall. Bept., p. 149, 
pi. ix. figs. 9, 10. S. complanata Egger, 1893, Abhandl. d. k. bayer. 
Akad. d. Wiss., Cl. II. vol. xviii. p. 225, pi. iii. figs. 7, 8. S. nitida 
(d’Orb.) T. Bupert Jones, 1895, Crag Foraminifera, Pal. Soc., 
p. 112, pi. v. fig. 3, and woodcut fig. 5. 
One of the commonest forms ; the shell is usually thin and trans- 
lucent, and slightly rugose. It is a wild-growing form often deviat- 
ing from the normal plan of growth, as shown by the figures on 
plate Y. A form closely resembling the arenaceous Ammodiscus 
gordialis is represented by fig. 12. Terquem and Berthelin, in their 
Beport on the Foraminifera of the Middle Lias of Essey-les-Nancy ,* 
under the name of S. lonyiscata, S. concentrica , Ac., and Terquem, 
in his Monograph of the Foraminifera from the Fuller’s-Earth of 
Warsaw,! under the name of “ Agathistegues irreguliers*” figure a 
large number of wild-growing specimens, most of which may be 
assigned to this species. That a peculiarity of this character should 
have survived for so vast a period of time, is an interesting fact in 
biology. 
Brady, in his 4 Challenger ’ Beport,! assigns to this species a form in 
which the peripheral margin of the last formed chamber is acute or 
carinate, whilst that of the penultimate is square or even slightly 
excavated. A similar form occurs at several of the Malay Stations, 
* 
t 
Mem. Soc. Geol. de France, ser. 2, vol. x. 1875, p. 78, pi. xvi. &c. 
Op. cit., ser. 3, vol. iv. 1880, p. 77, pis. xv, xvi. 
