11 Prot 
PROTOZOA. 
podia in 21 Rhizopoda and 2 Monera given, as bearing on their relation- 
ship to Infusoria (7). 
The so-called nucleus of the sarcoblasts of Radiolaria originates the 
skeleton, (12) p. 277, pi. vi. fig. 2 ; their granules are probably connected 
with reproduction. The sarcoblasts themselves probably represent the 
nucleus. 
The omphalostype originates all the future skeleton ; the omphalic 
chamber represents the primordial chamber of Foraminifera : (12) p. 378. 
Mivart (8) reviews the structures of the group Radiolaria in their 
different parts and with reference to their functions, as already deter- 
mined. He considers their organization to be the result, not of natural 
selection, but of some form of organic crystallization. 
W. Archer, Q. J. Micr. Sci. xviii. p. 205, regards the nature of pseudo- 
podia of an adult Rhizopod as being constant for and characteristic of it. 
Two Euglypha tests were fused at right angles to each other’s axis in 
a case observed by W. Archer, Q. J. Micr. Sci. xviii. p. 105. 
Brandt gives in SB. nat. Fr. 1878, p. 199, the results of his paper in 
Verh. phys. Ges. Berl., Dec. 1878, showing the absence of nuclei in Pro- 
tamosbay and the presence of a viscous carbo-hydrate resembling cellulose, 
in the granular central mass of all the Protozoa examined for it. 
Constituents of Glohigerina ooze and bottom generally (11) i. p. 119, 
pi. iv., pp. 186, 187, 206-210, 228-239, 359, 361, & 375, ii. 254-271, 291, & 
369-380. Rhabdospheres and coccoliths, pp. 220-222, figs. 49 & 50. 
Fossil Rhizopoda. 
Chief Papers relating to : — 
13. Moller, V. VON Die spiral-gewundenen Foraminiferen des Rus- 
sischen Kohlenkalks. Mem. Petersb. xxv. No. 9, pp. 147, pis. i.-xv. 
14. Nicholson, H. A., & Mxjrie, J. On the minute structure of Stro- 
matopora and its allies. J. L. S. xiv. p. 187, pis. i.-iv. 
New GenerAj &c. 
Clathrodictyony Nicholson & Murie, (14) p. 220, pi. ii. figs. 6-14. Differs 
from Stromatopora in the frequent inflection of the concentric laminae, 
forming quasi-cells ; no radial pillars ; |horizontal section simply reticu- 
late. 2 spp. nn. Upper Silurian and Devonian. 
Stylodictyony iid. (14) p. 221, pis. ii. fig. 14, iii. figs. 1-8. Differs from 
Stromatopora in the laminae being grouped around vertical columns. 
Based on Syringostroma columnaroy Nicholson, sp. n. Hamilton forma- 
tion, Ontario. 
Pachystromay iid., (14) p. 223, pi. iv. figs. 1-7. As Stromatoporay but 
laminae very thick, no radial pillars, laminae of irregularly reticulate 
tissue, 1 sp. n.. Upper Silurian of Canada, Devonian of Ohio. 
Syringosphceray P. M. Duncan, Apn. N. H. (5) ii. p. 298. Composed 
of radiating masses of tubes passing to the surface, the masses divided by 
inter-radial inosculating tubes, many of which open on surface ; forms 
subspherical calcareous balls. 
