Hirstienus nanus (Hirst, 1913)
Taxonomy & Nomenclature
Synonym/s: Phalangodes? nanus Hirst, 1913
Hirstienus was erected for Phalangodes? nanus by (Roewer, 1949), and remains monotypic today (Sharma et al., 2011:147). It has not been recorded since the holotype was collected in 1908 (Sharma et al., 2011; Gerlach, 2014b), despite extensive surveys in potential habitat and it has thus been evaluated as Extinct by the IUCN Red list (Gerlach, 2014b). However, H. nanus may be a senior synonym of the extant Samoa sechellana Rambla, 1984 (Sharma et al., 2011), and would thus qualify as taxonomically rediscovered.
Conservation Status
Extinct (Gerlach, 2014b)
Last (and only) record: 1908 (holotype) (Sharma et al., 2011 [holotype only]; Gerlach, 2014b [date])
IUCN RedList status: Extinct
Distribution
Mahé, Seychelles
Type locality: [imprecise] (Gerlach, 2014b)
Biology & Ecology
Unknown, but probably inhabited woodland (Gerlach, 2014b).
Hypodigm
Only known from holotype, a female.
Media
References
Original scientific description:
Hirst, A. S. (1913). The Percy Sladen Trust Expedition to the Indian Ocean in 1905 under the leadership of Mr. J. Stanley Gardiner. No. II. - Second report on the Arachnida - The scorpions, pedipalpi, and supplementary notes on the opiliones and pseudoscorpions. Transactions of the Linnean Society of London 16: 31-37.
Other references:
Gerlach, Justin. (2014a). Hirstienus nanus. The IUCN Red List of Threatened Species. Version 2014.1. (http://www.iucnredlist.org). Downloaded on 07 July 2014.
Gerlach, Justin. (2014b). Hirstienus nanus. The IUCN Red List of Threatened Species 2014: e.T21460734A21514465. https://dx.doi.org/10.2305/IUCN.UK.2014-1.RLTS.T21460734A21514465.en. Accessed on 20 June 2022.
Gerlach, Justin and Marusik, Yuri. (2010). Arachnida and Myriapoda of the Seychelles islands. Siri Scientific Press, Manchester.
Roewer, C. F. (1949). Einige neue Gattungen der Phalangodidae (Opiliones). Veröffentlichungen aus dem Museum für Natur-, Völker- u. Handelskunde in Bremen, Bremen, Reihe A. Naturwissenschaften 1: 143-144.
Sharma, P. P., Prieto, C. E. and Giribet, G. (2011). A new family of Laniatores (Arachnida: Opiliones) from the Afrotropics. Invertebrate Systematics 25(2): 143-154.
Staręga, Wojciech. (1992). An annotated check-list of Afrotropical harvestmen, excluding the Phalangiidae (Opiliones). Annals of the Natal Museum 33: 271-336.
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