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Hydromedusa tectifera COPE, 1870

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Higher TaxaChelidae, Hydromedusinae, Pleurodira, Testudines (turtles)
Subspecies 
Common NamesE: South-American Snake-headed Turtle
Portuguese: Cágado, Cágado-Cabeça-de-Cobra, Cágado-de-Pescoço-Comprido 
SynonymHydromedusa tectifera COPE 1870: 147
Hydromedusa platanensis GRAY 1873: 302
Hydromedusa wagleri GÜNTHER 1884: 423
Hydromedusa tectifera — BOULENGER 1885: 85
Hydromedusa tectifera — BOULENGER 1886: 425
Hydromedusa platanensis — GÜNTHER 1884: 423
Hydromedusa tectifera — ALDERTON 1988
Hydromedusa tectifera — ERNST & BARBOUR 1989: 51
Hydromedusa tectifera — TTWG 2014
Hydromedusa tectifera — TTWG 2021 
DistributionSE Brazil (Sao Paulo, Rio Grande do Sul, Rio de Janeiro [HR 32: 274], Parana, Minas Gerais, Santa Catarina ?), E Paraguay, NE Argentina, Uruguay

Type locality: Uruguay (“Monte Video”)  
Reproductionoviparous. 
TypesType: USNM or ANSP, but apprently lost fide TTWG 2021: 43.
Holotype: NHMUK 1947.3.5.85 [platanensis] 
DiagnosisAdditional details, e.g. a detailed description or comparisons (2806 characters), are available for collaborators and contributors. Please contact us for details. 
CommentHabitat: freshwater (Small rivers) 
EtymologyNamed after Latin tectum = roof, a covering and fero = I bear, carry; a reference to the carapace.

The genus was named after Greek hydor = water (when used as a prefix, hydro-); Medusa was one of the three Gorgons in Greek mythology. 
References
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