Arachnula

Arachnula
Scientific classification
Domain:	Eukaryota
Clade:	Sar
Clade:	Rhizaria
Phylum:	Cercozoa
Subphylum:	Endomyxa
Class:	Vampyrellidea
Order:	Vampyrellida
Family:	Vampyrellidae
Genus:	Arachnula; Cienkowsky, 1876

Arachnula is a genus of amoeboid eukaryotes first described by Leon Cienkowski in 1876.²

Its phylogenetic position is a subject of some controversy. David Bass and colleagues considered it to be a vampyrellid within the Endomyxa clade of Rhizaria,³ and the SSU rDNA sequence isolated from an organism described as Arachnula impatiens is indeed very close to that of the vampyrellid Theratromyxa.⁴ The identification of this organism as Arachnula has, however, been questioned; and a separate amoeba identified as Arachnula by Yonas Isaak Tekle and colleagues groups in molecular phylogenies close to the amoebozoans Filamoeba and Flamella.⁵ Which of these isolates corresponds to that originally described by Cienkowski is unresolved.

Notes

Neave, Sheffield Airey, ed. (1939). Nomenclator Zoologicus. Vol. 1. London: The Zoological Society of London. p. 271.
Cienkowski L (1876). "Über einige Rhizopoden und verwandte Organismen". Arch Mikrosk Anat. 12: 15–50. doi:10.1007/bf02933887. S2CID 85372219.
Bass D, Chao EE, Nikolaev S, et al. (February 2009). "Phylogeny of novel naked Filose and Reticulose Cercozoa: Granofilosea cl. n. and Proteomyxidea revised". Protist. 160 (1): 75–109. doi:10.1016/j.protis.2008.07.002. PMID 18952499.
Hess S, Sausen N, Melkonian M (February 2012). "Shedding Light on Vampires: The Phylogeny of Vampyrellid Amoebae Revisited". PLOS ONE. 7 (2) e31165. Bibcode:2012PLoSO...731165H. doi:10.1371/journal.pone.0031165. PMC 3280292. PMID 22355342.
Lahr D J G; Nguyen T; Lin J H; Katz L A (June 2011). "Comprehensive Phylogenetic Reconstruction of Amoebozoa Based on Concatenated Analyses of SSU-rDNA and Actin Genes". PLOS ONE. 6 (7) e22780. Bibcode:2011PLoSO...622780L. doi:10.1371/journal.pone.0022780. PMC 3145751. PMID 21829512.

References

Berney, Cédric. "Acachnula impatiens". London: The National History Museum. Retrieved 28 December 2012.

[1] Neave, Sheffield Airey, ed. (1939). Nomenclator Zoologicus. Vol. 1. London: The Zoological Society of London. p. 271.

[2] Cienkowski L (1876). "Über einige Rhizopoden und verwandte Organismen". Arch Mikrosk Anat. 12: 15–50. doi:10.1007/bf02933887. S2CID 85372219.

[pmid18952499-3] Bass D, Chao EE, Nikolaev S, et al. (February 2009). "Phylogeny of novel naked Filose and Reticulose Cercozoa: Granofilosea cl. n. and Proteomyxidea revised". Protist. 160 (1): 75–109. doi:10.1016/j.protis.2008.07.002. PMID 18952499.

[4] Hess S, Sausen N, Melkonian M (February 2012). "Shedding Light on Vampires: The Phylogeny of Vampyrellid Amoebae Revisited". PLOS ONE. 7 (2) e31165. Bibcode:2012PLoSO...731165H. doi:10.1371/journal.pone.0031165. PMC 3280292. PMID 22355342.

[5] Lahr D J G; Nguyen T; Lin J H; Katz L A (June 2011). "Comprehensive Phylogenetic Reconstruction of Amoebozoa Based on Concatenated Analyses of SSU-rDNA and Actin Genes". PLOS ONE. 6 (7) e22780. Bibcode:2011PLoSO...622780L. doi:10.1371/journal.pone.0022780. PMC 3145751. PMID 21829512.

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