Which probably accounts for the earlier failure of Lister and of Schaudinn himself to note their conjugation.
Rhumbler, "Die Doppelschalen v. Orbitolites u. and. Foraminiferen," in Arch. Protist. i. 1902, p. 193.
The alleged Archaean genus Eozoon, founded by Carpenter and Dawson on structures found in the Lower Laurentian serpentines (ophicalcites), and referred to the close proximity of Nummulites, has been claimed as of purely mineral structure by the petrologists; and recent biologists have admitted this claim.
Possibly composed of the same proteid, "acanthin," that forms spicules of greater permanence in the Acantharia among the Radiolaria (p. [75] f. Figs. 24, 25, A).
Such divisions into functional and abortive sister nuclei are termed "reducing divisions," and are not infrequent in the formation of pairing-cells, especially oospheres of Metazoa, where the process is termed the maturation of the ovum.