JOURNAL 
OF THK 
ROYAL MICROSCOPICAL SOCIETY. 
AUGUST 1894. 
TKANSACTIONS OF THE SOCIETY. 
VII. — The Foraminifera of the Gault of Folkestone. — VI. 
By Frederick Chapman, F.B.M.S. 
{Read ‘2.0th June , 1894.) 
Plate VIII. 
Sub-family N OB OSABIINM — continued . 
Vaginulina d’Orbigny [1826]. 
The group of the Vayinulinse from the Gault formation is an 
important one, since it bears characters distinct from those found in 
the Jurassic and other deposits. It is, moreover, an exceedingly 
difficult genus to deal with, as the specimens present few distinguishing 
points which will serve to separate them into specific or varietal forms. 
The Vayinulinse of the French Gault formation have been very 
carefully worked out by M. Berthelin, who gives in his admirable and 
comprehensive monograph ‘ Sur les Foraminiferes fossiles de l’etage 
Albien de Montcley ’ * a system of classification which embraces some 
EXPLANATION OF PLATE VIII. 
Fig. 1. — Vaginulina recta Reuss. a, side view; b, back edge view, x 45. 
„ 2. — V. recta var. tennistriata var. nov. x 45. 
„ 3. — V. strigillata Reuss sp., typical form, a, side view; 6, back edge view. 
X 35. 
„ 4. — V. strigillata Reuss sp., slender variety, x 35. 
,, 5. — V. truncata Reuss. a, side view ; b, back i dge view, x 45. 
„ 6. — V. truncata Reuss. x 45. 
„ 7. — V. truncata Reuss var . robust a Berthelin and Chapman, a, side view; 
b, back edge vie a. x 45. 
„ 8. — V. gaultina Berthelin. a, side view ; b, back edge view, x 45. 
„ H. — V. arguta Reuss. a, side view; b, back edge view, x 45. 
„ 10. — V. striolata Reuss. x 45. 
„ 11. — V. comitina Berthelin. x 45. 
„ 12. — V. sparsicostata Reuss. a , side view; b, back edge view, x 60. 
„ 13. — V. discors F. Koch, x 45. 
„ 14. — F. Biochei Berthelin. a, side view; b, front edge view, x 45. 
„ 15.— V. Priceana sp. nov. a, side view; b, front edge view, x 60. 
2 a 
1894 
* Me'tn. Soc. geol. France, 1880, ser. 3, vol. i. No. 5. 
