2 
Transactions of the Society. 
Nat. Hist. Trans. Northumb. and Durham, vol. i. p. 105, pi. xii. fig. 9. 
T. lobatula (passing into refulgens) Parker and Jones, 1865, Phil. 
Trans., vol. civ. p. 382, pi. xvi. figs. 18-20. T. ref ulgens Brady, 1884, 
Chall. Rep., vol. ix. p. 659, pi. xcii. figs. 7-9. Egger, 1893, Abhandl. 
k. Bayer. Ak. Wiss., vol. xviii. p. 401, pi. xvi. figs. 31-33. Planorbu- 
lina refulgens Goes, 1894, K. Sven. Vet.-Akad. Handl., vol. xxv. No. 9, 
p. 89, pi. xv. figs. 775, 776. Truncatulina refulgens Rupert Jones, 
1896, Monogr. Foraru. Crag, pt. iii. p. 302 ; figured in pt. ii. (1895) 
pi. v. figs. 31 a , b. 
The solitary specimen from the Folkestone Gault is not quite so 
circular in its peripheral contour as in typical specimens, hut in other 
respects it is specifically characteristic. The septa in this specimen 
are thick, as is also the general structure of the test, in which amongst 
other points it differs from T. lobatula . 
T. ref ulgens has been recorded from the Middle Marl bed or 
Rancocas formation of New Jersey (Bagg) ; it is also known from 
the London Clay, and from Pliocene and Pleistocene beds. 
Asa living organism it usually occurs in temperate seas at very 
varying depths. 
'The Gault specimen was found in zone vii. at Folkestone. 
Truncatulina lobatula Walker sp., plate I. figs. 2 a,b. 
Nautilus lobatulus Walker, 1784, Test. Min., p. 20, pi. iii. fig. 71. 
Truncatulina tuberculata d’Orbigny, 1826, Ann. Sci., Nat., vol. vii. 
Plate II. 
Fig. 1 . — Pulvinulina spinulifera Reuss sp. : a, superior aspect; b, inferior aspect ; 
c, peripheral aspect, x 10. 
„ 2. — Rotalia Soldanii d’Orbigny sp., var. nitida Reuse : a, superior aspect ; 
b , inferior aspect ; c, peripheral aspect, x 60. 
„ 3 . — Spiroloculina nitida d’Orbigny. x 30. 
„ 4 . — Rhizammina indivisa Brady, x 30. 
,, 5 . — Haplophragmium Terquemi Berthelin. x 120. 
,, 6 . — Ammodiscus Millettianus sp. nov. : a and b. the lateral surfaces ; c, peripheral 
aspect, x 60. 
„ 7 . — Teztularia complanata Reuss sp. x 30. 
8 . — Marginulina Parker i Reuss. X 45. 
„ 9 . — Vaginulina truncata Reuss. An aberrant specimen consisting of two indi- 
viduals fused at the apertural borders, x 30. 
„ 10. — V. truncata Reuss. A well- grown individual, with an embryonic form 
attached to the distal end, on the apertural border. x 30. 
,, 11.. — V. recta Reuss. An aberrant specimen, consisting of two individuals of 
opposite types (forms B and A) fused together by the distal and proxi- 
mal ends respectively, x 30. 
,, 12. — Y. recta Reuss. An aberrant specimen, consisting of a perfect individual, 
and another more or less broken at the attaching surface : a and b show 
the two aspects of the specimen at right angles to one another, x 45. 
„ 13. — Vaginulina truncata Reuss var. robusta Berthelin and Chapman (bigeneric 
form), x 30. 
,, 14 . — Sagrina calcarata Berthelin sp. : a, lateral aspect ; 5, oral aspect, x 60. 
., 15 . — Ramulina Ixvis Jones. (A better specimen than that figured J. R. IMicr. 
Soc., 1896, pi. xii. fig. 2). x 60. 
„ 16 . — Discorbina Vilardeboana d’Orbigny sp. : a, superior aspect; 6, inferior 
aspect ; c, peripheral aspect, x 30. 
