Catalog - Spirillina

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Spirillina

Citation: Spirillina Ehrenberg, 1843

Type species: Spirillina vivipara Ehrenberg, 1843

[Ehrenberg 1843, original text]: Kieselspirale. Genus e familia Arcellinorum? Lorica tubulosa spiralis silicea. Monotypische. [See description of Spirolina vivipara Ehrenberg, 1843.]

Vielleicht gehört noch die Spirulina ammonis des Herrn Bory de St. Vincent in diese Gattung, deren Name schon 1825 von Bory gegeben wurde, die aber Leicht eine kliene Planorbis gewesen sein kann. Da der Name Spirolina von Lamarck, Welcher noch früher ist, sprachwidrige Bildung hat, so ist er von mir bei den Polythalamien in Spirulina verwandelt worden, wie es offenbar gemeint war. Bory’s Spirulina hab eich denn jetzt in Spirillina umgewandelt. – Säure wirkte nicht auf die Schale.

[Google Translated from Latin]: Pebble spiral. A genus from the family of the Arcellines? Plate tubular spiral flint. Monotypic. [See description of Spirolina vivipara Ehrenberg, 1843.]

[Google Translated from German]: Perhaps the Spirulina ammonis of Mr. Bory de St. Vincent also belongs to this genus; its name was given by Bory as early as 1825, but it could easily have been a small Planorbis. Since Lamarck's name Spirolina, which is even earlier, is a linguistically incorrect term, I have changed it to Spirulina in the Polythalamia, as was evidently intended. I have now changed Bory's Spirulina to Spirillina. Acid had no effect on the shell.

[Ehrenberg 1843 emend. Smith and Isham 1974]: Emended description (note that the gamont, not agamont test is smaller). – Test free, early portion conical, becoming planispiral, or with one or both sides slightly concave; prolocular area continuous with closely appressed, spirally wound, undivided tube, forming single chamber of variable number of whorls (usually 4 to 9); diameter of prolocular area and test of gamont (asexually reproduced, “megalospheric”) smaller than agamont (sexually reproduced, “microspheric”); wall calcareous, hyaline, composed of single to many crystals of calcite deposited over pseudochitinous membrane, finely to coarsely perforate, although, according to Sollas (1921, Geol. Soc. London, Quart. Jour., vol. 77, pt. 3, p. 207), with “pseudopores,” not true pores, perforations often uneven in distribution, size, and number from areas, sides, and specimens to others, with variable number of shallow furrows perpendicular to whorls; aperture terminal, peripheral, somewhat crescentic where final whorl moulds against previous whorl, or apparently closed off, or ventral where final whorl turns inward toward umbilicus. Family Spirillinidae; subfamily Spirillininae.

Synonymy:

?Spirulina Bory de St. Vincent.
Not Spirolina Lamarck, 1804.

References:

Ehrenberg, C. G. (1843). Verbreitung und Einfluss des mikroskopischen Lebens in Süd-und Nord-Amerika. Abhandlungen der Koniglichen Akademie der Wissenschaften zu Berlin. 1841: 291-445. gs O

Smith, R. K. & Isham, L. B. (1974). Reinstatement of Mychostomina Berthelin, 1881, and emendation of Spirillina, Ehrenberg, 1843, Spirillininae, Spirillinidae, and Spirillinacea, all Reuss, 1862. Journal of Foraminiferal Research. 4(2): 61-68. gs

CATALOG OF ORIGINAL DESCRIPTIONS: Spirillina Ehrenberg, 1843

Spirillina

References:

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Comments

			Spirillina minima Schacko, 1892 = Spirillina minima
			Spirillina tenuissima Gümbel, 1862 = Ammodiscus tenuissimus