14 Vrot. 
rilOTOZOA. 
Lamlash Bay^ Isle of Arran (Scotland) : list of 28 species of Foramini- 
fera^ by F. Pearcey, in W. A. Herdman’s Invertebrate Fauna of 
Lamlash Bay, P. Phys. Soc. Edinb. 1880-81, p. 19, 
Firth of Forth: list of 35 species of Forammifera^ by G. Leslie & 
W. A. Herdman, in Invertebrate Fauna of the Firth of Forth, P. Phys. 
Soc. Edinb. 1880-81, p. 201. 
Mediterranean (deep sea). Foraminifera of the ‘ Travailleur ’ Expedi- 
tion of 1881, reported briefly by A. Milne-Edwards, C. R. xciii. p. 881 ; ' 
a new genus, Amphicoryna (see below), discovered. 
Atlantic (deep). Tom. cit. p. 936 ; a Euglypha^ resembling Difflugia, 
and some small Actinophrys, from 2260 metres depth, are the only species 
mentioned. 
Hackel, (26) finds the Radiolaria divisible as to distribution into 3 
groups : — A. Pelagic j from the surface ; B. Zonar^ moving in certain 
bathymetric zones, down to 20,000 feet and more ; c. Profound^ living on 
the bottom. 
See also General Subject (svprd). 
Classification. 
Brady, (16) p. 40, proposes the following as the result of his study of 
the ‘ Challenger’ Foraminifera: — 
Order Foraminifera. 
a. Test imperforate, chitinous . . , . . Gromidoe. 
< B. Test imperforate ; normally porcellanous, sometimes encrusted 
with sand ; in starved condition becoming chitinous, or chitino- 
arenaceous ; at abyssal depths occasionally consisting of a thin 
homogeneous, imperforate, silicious lamina . Miliolidce. 
(Dactyloporince included with doubt). 
C. Test invariably arenaceous . Astrorrhizidce (and all recent 
deep-water arenaceous forms except Textularidce) — Lituolidce^ 
Parkeridce. 
D. Tests of the larger species arenaceous, either with or without 
a perforate, calcareous basis ; smaller forms hyaline and con- 
spicuously perforated ..... Textularidce . 
E. Test calcareous, finely perforate . . . Chilostomellidce 
(Chilostomella^ Allomorphina, Ellipsoidina) and Lagenidce. 
p. Test calcareous, generally very coarsely perforated, no trace of 
canal-system Glohigerinidce. 
G. Test coarsely perforate, a few of the higher forms with double 
chamber- walls and interseptal chambers . , Rotalidce, 
(comprises Rotalince^ with Spirillina). 
H. Test very finely tubulated. All the higher types possessing a 
system of interseptal canals of greater or less complexity 
Nummulinidce. 
Hacked (26) classifies the Radiolaria as follows : — 
Subclass i. Monocyttaria. 
Order i. Monopylaria, Fam. 1, Plectida ; 2, Cyrtida ; 3, Botrida ; 
4, Spyrida ; 5, Stephida. 
