FORAMINIFERA. 25 
thrown out in all directions, is a type ; Rotalia veneta (Fig. 
14) is another example. 
The Foraminifera are nucleated. Diplophrys multiplies 
by a ‘‘ process of con- 
tinuous binary fis- 
sion.”? Miliola gives 
rise to small round, 
sharply - defined bod- 
ies, in calcareous 
shells, with one turn, 
but no inner walls, 
and with pseudopo- 
dia like those of the 
adult. Microgromia so- 
cialis multiplies by zo- 
ospores, which are oval, 
with two flagella; or, 
in other cases, the 
Fig, 13.—A Foraminifer. Globigerina bulloides, 
magnified 70 diameters.—From Macallister. 
young assume an actinophrys-like form, and move about by 
tne aid of three or four more or less branched pointed pseudo- 
Fig. 14.—Rotalia. A Rhizopod, showing the pseudopodia. 
pods (Hertwig).. 
/ In some forms,. 
as the fossil 
Nummutites, the 
, chambers are’ 
YY “-- Namerous and 
regular, the 
shells being flat 
and consisting 
of eight coils sit- 
uated in the 
same plane. A 
recent species of 
Foraminifer 
found at Borneo 
measures more 
than two inches 
in diameter, while a common form on the Florida reefs, de- 
voured in large quantities by the Holothuria, or sea-cucum- 
