of England and India. 35 
assumed to be the same species, with the tentacula in a capitate 
form and of various lengths, the capitate portion not being so 
distinct in 6 and c, where these tentacula are but just put forth 
beyond the body. But that it incepts crude food, I should have 
considered it an Acineta. I have not seen this Rhizopod in 
England. 
It is right, however, to add that the same form, and under- 
going the changes above mentioned, once occurred in company 
with that peculiar cyst of Acineta which is surrounded by trans- 
verse circular ridges, out of one of which cysts I have (p, m) 
figured, doubtfully, its exit. But, be this as it may, the specimens 
contained no crude food, and were more or less densely charged 
with the granules so characteristic of Acineta. Can it be that 
this Rhizopod, after all, is an Acineta which both lives on suc- 
tion through the capitate bulbous tentacula and on crude food, 
like Actinophrys, as the occasion may require ? 
Actinophrys Hichhornit, Ehr. PI. II. fig. 21. 
Of this Rhizopod I only met with two specimens in the island 
of Bombay, of the size given, in eight years, in different locali- 
tities and at a long interval of time, both in fresh water. The 
first had no pseudopodia, but presented the vesicula in plurality 
and in the forms given in the figure (f, f), as well as the cell (g) 
supposed to be the nucleus. Both specimens contained much 
crude food, and the last specimen seen was more or less scattered 
over with actiniform tentacula. In each instance, the body 
was filled with a parenchyma consisting of vacuoles suspended in 
granular sarcode. The vacuoles appeared to be spherical in their 
primary form (c), and each contained granules in active motion, 
while the granular sarcode alone was projected into the form of 
tentacula, which bore with them a covering of the plastic invest- 
ing membrane, as represented in the drawing (a, a). The vesi- 
cule made their appearance between the surface of the paren- 
chyma and the investing membrane, and, bursting through the 
latter, were followed by protrusion of the parenchyma, as shown 
at e. Hach specimen was about =1,th of an inch in diameter ; 
and that figured is drawn upon the same scale as most of the 
other delineations, viz. 1th to ~1;th part of an inch. 
Fig. 22 (whose body was only ;+,th of an inch in diameter, 
but contained vacuoles similar to those of A. Hichhornii, was in 
‘the same basin with and was probably only a small specimen of 
it) presented on different parts of its actiniform tentacula little 
globules, apparently of the substance of which the investing 
membrane is composed. In the same basin was also an Actino- 
phrys m which all the tentacula radiated from one point of the 
body (Plagiophrys spherica, Clap. et Lachm, p. 454:?), and also 
3* 
