. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. 54 MANUAL OF ZOOLOGY. —should be looked upon as the lowest forms of the Rhizopoda, or even of the Protozoa. The pseudopodia in all the Foraminifera (fig. 4, b, c) are fila- mentous and protrusible to a great length, and they possess the singular property of uniting together in various directions so as to form a kind of network, like an "animated spider's ; (Hence the name Reticulosa applied to the order by Dr Carpenter.) This property, however, is not peculiar to me
. A manual of zoology for the use of students : with a general introduction on the principles of zoology . Zoology. 54 MANUAL OF ZOOLOGY. —should be looked upon as the lowest forms of the Rhizopoda, or even of the Protozoa. The pseudopodia in all the Foraminifera (fig. 4, b, c) are fila- mentous and protrusible to a great length, and they possess the singular property of uniting together in various directions so as to form a kind of network, like an "animated spider's ; (Hence the name Reticulosa applied to the order by Dr Carpenter.) This property, however, is not peculiar to members of this order, but is seen also in Actimphrys and in the Thalassicollida, though to a less extent. Further, through- out the entire network formed by the inosculating pseudo-. Fig. 4.—Morphology of Foraminifera. a Lageiut V7ilgaris, sl monothalamous Forami' nifer; 6 Miliola (after Schultze), showing the pseudopodia protruded from the oral aperture of the shell ; c Discorbina (after Schultze), .showing the nautiloid shell with the foramina in the shell-wall giving exit to pseudopodia; d Section of Nodosaria (after Carpenter); e Nodasaria hispida ; / Globigerbia biiUoides. podia there is a constant circulation of granules in different directions. This singular phenomenon is in many respects analogous to the circulation of granules which is seen in many vegetable cells, and it is believed by Dr Carpenter that " the conditions of the two sets of phenomena are essentially the ; The shells of Foraminifera may be classed in three divisions, termed respectively the "porcellanous," the "hyaline" or "vitreous," and the "; The porcellanous shell is quite homogeneous in its composition, is opaque-white wlien seen by reflected light, and is not perforated by pseudopodial. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appear
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