On the nomenclature of the Foraminifera. Pt. III. The species enumerated by Von Fichtel and Von Moll / by W.K. Parker and T.R. Jones.
- William Kitchen Parker
- Date:
- 1860
Licence: Public Domain Mark
Credit: On the nomenclature of the Foraminifera. Pt. III. The species enumerated by Von Fichtel and Von Moll / by W.K. Parker and T.R. Jones. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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![Nummulite, 2 lines in diameter. The section, fig. g, shows three whorls and a large central chamber; eighteen chambers in the outer whorl. The chambers, as to their relative size and setting-on, are like those of N. Mamilla. Ily MM. d’Archiac and Haime N. lenticularis, var. a, is recognized as a species, and renamed N. Tchihatcheffi, Monogr. p. 98, pi. ]. fig. 9. Var. /3, pi. 7. figs, a, b. A small lenticular Nummulite, 2 lines in diameter, covered with closely-set granules; on the figure about thirteen granules lie in a row along the diameter of the shell. According to MM. d’Archiac and Haime, this is N. Lucasana, Defr., var. a, Monogr. p. 125, pi. 7. fig. 7. Var. 7, pi. 7. figs. c-f. A small, smooth, lenticular Nummulite (3j lines in diameter), more convex on one face than on the other. In the section, fig. e, whorls are seen, with the central cell large, and thirty-six chambers in the outer whorl (thirty- two on the fifth, and about the same number in the thii-d whorl); chambers very like those of N. Mamilla and N. lenticularis, var. a, but more numerous. MM. d^Archiac and Haime refer this to N. Molli, d’Arch., Monogi’. p. 102, pi. 4. fig. 13. Var. 8, pi. 7. fig. g. A small lenticular Nummulite, 3| lines in diameter, marked with twenty-four more or less curved or sinuous striae, radiating from the periphery towards the centre of the face, but leaving a small clear umbonal area. M. D’Oi’bigny collates this variety as identical with his N. radiata, For. Foss. Vien. p. 115; but we cannot coincide in this determination, though these varieties may belong to one species. According to MM. d’Archiac and Haime, this is N. Biaritzensis, d^Archiac, Monogr. p. 131, pi. 8. figs. 4-6. Var. e, pi. 7. fig. h. A small lenticular Nummulite, 3g lines in diameter, resembling var. 8, excepting that the interspaces between the radial lines are occupied with granules, mostly in single rows of from 4 to 7, but sometimes in double series towards the periphery. This is N. perforata (Montf.), D^Orb., and accepted under that name by MM. d’Archiac and Haime, Monogr. p. 115, pi. 6. figs. 1-12. These figures of five varieties of Nummulites, though boldly drawn and apparently with care, give us but little exact evidence of the real relationships of the originals. We have quoted the determinations arrived at by MM. d’Archiac and Haime, after considerable research; but, even with the aid of their pains- taking and minute descriptions and their numerous and faithful drawings, we cannot readily follow them to their conclusions.](https://iiif.wellcomecollection.org/image/b2234407x_0013.jp2/full/800%2C/0/default.jpg)
