RinZOPODA. 
541 
remote from each other, but connected by a loose meshwork of anas- 
tomosing pseudopodia (the spring form), or clustered together in an 
irregular globular mass (the summer form) ; provided with hyaline rigid 
shells with a short neck, through which the pseudopodial stem is emitted ; 
the sarcodal body only adheres to the shell at the periphery of the 
orifice and contains posteriorly a nucleus, anteriorly one or two con- 
tractile vacuoles. The colonies increase by longitudinal (?) division of 
the sarcodal bodies, for instance, into three, two of which leave the shell, 
assuming amoeboid or Actinophrys-\i\iQ shapes and movements, but 
remaining in connection with the pseudopodial stems of the mother-cell. 
New colonies are formed by transverse fission, the new individuals being 
from the first completely cut off from that remaining in the shell ; after 
haying left which, they assume a creeping amoeboid shape, or turn 
into “ swarmers ” provided with cilia. 
Hyalodiscus ruhicvndus^ g. & sp. nn., Hertwig & Lesser (3), pp. 49-54, 
pi. ii. fig. 5. Body discoid, rather convex, without shell or pseudopodia, 
differentiated into a homogeneous ectosarc and a granular endosarc 
with nucleus and contractile (?) vacuoles, rotated by the uniform con- 
tractility of the sarcode, the elements of which are in continual motion. 
Dactylosphcerium vitreum^ g. & sp. nn., iid. 1. c. pp. 54-57, pi. ii. fig. 1. 
Body roundish, formed of hyaline homogeneous protoplasm, with nume- 
rous imbedded green or yellow granula ; surface often villous ; pseudo- 
podia conical, finger-shaped. 
Leptojihrys cinerea and elegans, g. & sp. nn., iid. 1. c. pp. 57-61, pi. ii. figs. 
3 & 4. Body irregular, formed of a very delicate film -like sarcode, pro- 
duced into lobes, which give off the pointed, hon-ramified pseudopodia 
especially from their extremities; paronchymo regularly filled to the 
margin with small non-coutractilo vacuoles, which are, like the granula, 
of uniform size ; several nuclei. 
Vampyrella spirogyrce, Cienk. ; iid. 1. c. pp. 61-65, pi. ii. fig. 2. Body 
irregularly globular, but capable of changing its shape, like an A mceha, 
impregnated by a diffuse pigment with the exception of a narrow 
hyaline border, which contains a few non-contractile vacuoles ; pseudo- 
podia delicate, pointed, rarely branched; encysts itself, after having 
fed, in a cyst of cellulose, which it leaves again, dividing into 2-4 
individuals. 
Cocliliopodium pellucidum, g. & sp. n., iid. 1. c. pp. 66-78, pi. ii. fig. 7 (= 
Ampliizonella vestita, var., Arch., = Am, aha hilimhosa and actinophora, 
Auerb.). Shell supple, pliable, of Araella-\\kQ structure, with a highly 
dilatable orifice for the bundle of pseudopodia ; sarcodal body variable in 
shape ; one nucleus in the back part of the shell ; two or more contractile 
vacuoles close under the shell ; pseudopodia without granules, conical, 
rarely branching. C. p>ilosum, sp. n., iid. 1. c. p. 78. 
Actinophrys sol (Ehrbg.); iid. l.c. pp. 164-176, pi. v. fig. 2. Body regu- 
larly globular, completely vacuolated, with the exception of the central 
homogeneous protoplasm-mass ; a single contractile vesicle, prominent 
above the body surface ; a central nucleus with distinct membrane and 
nucleolus; pseudopodia with axial filament, granuligerous, not branching, 
and rarely anastomosing. 
