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Citation: Midtgaard, Rune. RepFocus - A Survey of the Reptiles of the World. (www.repfocus.dk).
Latest update: December 31st, 2022.


Taxonomy of the family Leptotyphlopidae
Bibliography of the genus Siagonodon
Biodiversity of the family Leptotyphlopidae








Genus
Siagonodon

Mandible-toothed Thread Snakes

Gezahnte Fadenschlangen

Tandede Trådslanger

1830 Typhlina Wagler [not Typhlina Ehrenberg in Hemprich 1828 (Rotifera)] (type species: Acontias lineatus Reinwardt 1830 [nomen nudum] and Anguis septem-striatus Schneider 1801) [suppressed by ICZN (1982): Opinion 1207; see McDiarmid, Campbell & Touré 1999; Adalsteinsson, Branch, Trape, Vitt & Hedges 2009)
Typhlira Jan 1861 [lapsus]
1844 Catodon Dumeril & Bibron [not Catodon Linnaeus 1761 (Cetacea)] (type species: Anguis septem-striatus Schneider 1801; syn. Adalsteinsson, Branch, Trape, Vitt & Hedges 2009)
1881 Siagonodon Peters [substitute name for Catodon Dumeril & Bibron 1844]
Contents: 5 species, of which 2 (40.0%) are endemic.
Endemism: 0% 100%
Remarks: Previously regarded as a synonym of Leptotyphlops. Revalidated as a separate genus by Adalsteinsson, Branch, Trape, Vitt & Hedges (2009). Includes the species unguirostris, formerly assigned to the genus Rena. Previously included Trilepida acutirostris and T. brasiliensis.
Distribution: South America.
Reported from: Argentina, Bolivia, Brazil (Amapa, Amazonas, Mato Grosso, Mato Grosso do Sul, Para, Rondonia, Roraima, Tocantins), French Guiana, Guyana, Surinam, Venezuela.

Siagonodon borrichianus

Mendoza Thread Snake, Western Argentina Thread Snake

Mendoza-Fadenschlange

Mendoza-trådslange

1923 Glauconia borrichiana Degerbøl
Leptotyphlops borrichianus Amaral 1929
Siagonodon borrichianus Adalsteinsson, Branch, Trape, Vitt & Hedges 2009

Distribution: Argentina.


Siagonodon cupinensis

Mato Grosso Thread Snake, Lely Mountains Thread Snake

Mato-Grosso-Fadenschlange

Mato Grosso-trådslange

1946 Leptotyphlops cupinensis Bailey & Carvalho
Siagonodon cupinensis Adalsteinsson, Branch, Trape, Vitt & Hedges 2009

Distribution: Brazil (Mato Grosso, Para), French Guiana, Surinam.


Siagonodon exiguum

Monte Branco Thread Snake

Monte-Branco-Fadenschlange

Monte Branco-trådslange

2023 Siagonodon exiguum Martins, Folly, Ferreira, Garcia da Silva, Koch, Fouquet, Machado, Lopes, Pinto, Rodrigues & Passos

Distribution: Brazil (Para), French Guiana.





Siagonodon septemstriatus

Eastern Seven-lined Thread Snake, Seven-rayed Thread Snake

Östliche Siebenstreifige Fadenschlange

Østlig Syvstribet Trådslange

1801 Anguis septem-striatus Schneider
Typhlops sentemstriatus [lapsus] Wagler 1830
Catodon septemstriatus Duméril & Bibron 1844
Stenostoma septemstriatum Jan & Sordelli 1860
Siagonodon septemstriatus Peters 1881
Glauconia septemstriata Boulenger 1890
Leptotyphlops septemstriatus Mertens 1925
1934 Leptotyphlops tatacua Briceno-Rossi (Hahn 1980: status uncertain)

Remarks: Records from Mato Grosso do Sul need confirmation (Ferreira, Terra, Piatti, Delatorre, Strüssmann, Béda, Kawashita-Ribeiro, Landgref-Filho, Aoki, Campos, Souza, Ávila, Duleba, Martins, Rita & Albuquerque 2017).
Distribution: Bolivia, Brazil (Amapa, Amazonas, Para, Roraima), French Guiana, Guyana, Surinam, Venezuela.


Siagonodon unguirostris

Cordoba Thread Snake, Southern Thread Snake

Cordoba-Fadenschlange

Cordoba-trådslange

1902 Glauconia unguirostris Boulenger
Leptotyphlops unguirostris Serié 1921
Rena unguirostris Adalsteinsson, Branch, Trape, Vitt & Hedges 2009
Siagonodon unguirostris Wallach, Williams & Boundy 2014

Remarks: Previously assigned to the genus Rena (e.g., Adalsteinsson, Branch, Trape, Vitt & Hedges 2009). Included in the genus Siagonodon herein, following Wallach, Williams & Boundy (2014), although these authors did not present any evidence for their reassignment of the species. Considering its distribution, it does seem unlikely, though, that unguirostris should belong in the otherwise strictly North American genus Rena.
Distribution: Argentina, Bolivia, Paraguay.