My. H. J. Carter on Ramulina parasitica. 99 
parts of a mounted specimen of Operculina arabica that I 
still possess, from which the calcareous material of the test 
had been removed by acid (‘ Organismus der Polythalamien,’ 
1854, p. 27, a, 6); and two years afterwards he verified this in 
a species of Miliola (Miiller’s ‘ Archiv,’ 1856, nos. 1 and 2, 
p. 165, Taf. vi. B). In 1861 I found the same kind of thing, 
but in a fossilized state, in a specimen of Nummulites Ia- 
mondi about one fifth of an inch in diameter, infiltrated with 
ochraceous oxide of iron, which thus renders the whole of 
the structure in a vertical section through the centre, 
when polished and overspread with Canada balsam under 
a glass slip particularly brilliant and distinct. (I am not now 
alluding to the “opaque scarlet spherules,” to which I have 
lately called attention.) In this condition the last chamber 
especially is observed to be filled with spherical bodies about 
1-1800th inch in diameter, translucent, and charged with 
light brown granular contents (‘ Annals,’ 1861, vol. vit. 
pl. xvii. fig. 15). This preparation I still possess. So 
much, then, for the reproductive body in the Foraminifera. 
(2) The germination of this ‘‘ body ” has not been actually 
observed ; but, like that of the freshwater Rhizopoda just 
mentioned, it may fairly be inferred to be similar to that of 
the spore in the Mycetozoa. (3) The retraction of the cilium 
would follow as a matter of course, and the plasmic contents 
thus become ameebiform. (4) But the “ flowing together’’ 
of the ameebiform bodies to form a “ plasmodium”” is still 
less evident than in the freshwater Rhizopoda, for the 
development after the soft or plastic condition of the reproduc- 
tive body of the species, especially in the Nautiloid forms, 
can be followed from the commencement to the end, through 
the plasmic chambers or lobes as they are successively pro- 
duced becoming permanently represented in their forms by 
shell-substance. 
At what period the reproductive bodies begin to appear in 
this development remains to be discovered. But as regards 
the possibility of the reproductive body germinating in the 
chamber of the parent, Dr. Strethill Wright’s statement in 
1861 may be noted (‘ Annals,’ vol. vil. p. 362), viz. that he 
had seen “three small living Spirilline” in S. perforata, 
apparently confirming what Ehrenberg had noticed in 1841, 
which led the latter to call the species “ v/vipara.” Here 
again I found the same kind of thing in a foss¢lized state in 
an infiltrated specimen of Nummulites Ramondi about one 
fifth of an inch in diameter, treated in the same way as that 
above described ; that is to say, in the outer chamber, close to 
one angle of the vertical section, there are several bodies which 
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