Foraminifera of the Gault of Folkestone. By F. Chapman. 43 
APPENDIX IV. 
Summary of Results on the Zoological and Zonal Distribution 
of the Folkestone-Gault Foraminifera. 
The Zoological Distribution. 
There are 265 species and varieties of Foraminifera herein recorded 
from Folkestone, which are distributed, according to Dr. H. B. Brady’s 
classification, as follows : — 
The Family of the Miliolid^e is represented by 4 genera, viz. Nube- 
cularia (2 new spp.) ; Biloculina (1 new sp.) ; Spiroloculina (2 spp.) ; 
and Miliolina (4 spp.). 
The Family of the Astrorhizid^e, — 1 genus, viz. Astrorhiza (L sp.). 
The Family of the Lituolhle, — 8 genera, viz. Beophax (6 spp. — 
2 of them new); Haplophragmium (10 spp. and 1 var. — 1 sp. and 1 
var. new) ; Placopsilina (2 spp.) ; Haplostiche (1 sp, new) ; Thurammina 
(1 sp.) ; Hormosina (1 sp.) ; Ammodiscus (4 spp. — 1 new); and Troch- 
ammina (1 sp. new). 
The Family of the Textulariid^e, — 9 genera, viz. Textularia (10 
spp.) ; Verneuilina (3 spp.) ; Tritaxia (2 spp.) ; Spiroplecta (4 spp.) ; 
Gaudryina (5 spp. — 1 new) ; Valvulina (2 spp.) ; Bulimina (8 spp. and 1 
var. new) ; Bolivina (1 sp.) ; and Pleurostomella (2 spp.). 
The Family of the Lagenid.®, — 13 genera, viz. Lagena (12 spp. and 
2 vars. — 1 var. new) ; Nodosaria [including Glandulina and Dentalina~\ 
(36 spp., 4 of them new, and 3 vars., 1 new); Lingulina (2 spp.); 
Frondicularia (17 spp., 4 of them new); Flabellina (1 sp.); Bliabdo- 
gonium (2 spp. and 1 var.) ; Marginulina (14 spp., 3 of them new) ; 
Vaginulina (11 spp., 1 of them new, and 2 vars., 1 of them new); 
Gristellaria (36 spp., 3 of them new, and 3 vars. 2 of them new) ; Poly - 
morphina • (8 spp. and 6 vars.); Sagrina (2 spp., 1 of them new); 
Bamulina (4 spp.); and Vitriwebbina (3 spp. and 1 new var.). 
The Family of the Globigerinid®, — 2 genera, viz. Globigerina 
(3 spp.) ; and Sphseroidina (1 sp.). 
The Family of the Rotaliid®, — 6 genera, viz. Spirillina (1 sp.) ; 
Discorbina (6 spp.); Truncatidina (3 spp.) ; Anomalina (3 spp.) ; Pulvi- 
nulina (6 spp.) ; and Potalia (1 var.). 
Notes on the Zonal Distribution. 
The members of the Family of the Miliolidse are for the greater part 
confined to the uppermost beds of the Gault, occasional specimens only 
being found in beds lower than zone x. As with nearly all the species 
of the Foraminifera herein described, there is no particular sequence 
