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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 Colubridae
Bibliography of the genus Hydrops
Biodiversity of the family Colubridae








Genus
Hydrops

South American Mud Snakes, Neotropical Mud Snakes

Südamerikanische Schlammnattern

Sydamerikanske Muddersnoge

1830 Hydrops Wagler (type species: Elaps martii Wagler 1824)
1842 Higina Gray (type species: Higina fasciata Gray 1849)
Contents: 3 species, none of which are endemic.
Endemism: 0% 100%
Distribution: South America.
Reported from: Argentina, Bolivia, Brazil (Acre, Amapa, Amazonas, Maranhao, Mato Grosso, Mato Grosso do Sul, Para [incl. Marajo Island], Piaui, Rondonia, Roraima, Tocantins), Colombia, Ecuador, French Guiana, Guyana, Paraguay, Peru, Surinam, Trinidad & Tobago (Trinidad), Venezuela.

Hydrops caesurus

Southern Mud Snake

Südliche Schlammnatter

Sydlig Muddersnog

2005 Hydrops caesurus Scrocchi, Ferreira, Giraudo, Avila & Motte

Distribution: Argentina, Brazil (Mato Grosso, Mato Grosso do Sul), Paraguay.


Hydrops martii

Coral Mud Snake, Amazon Water Snake

Korallen-Schlammnatter

Koral-muddersnog

1824 Elaps Martii Wagler
Hydrops martii Wagler 1830
Pseuderix martii Bocourt 1895
Hydrops triangularis martii Amaral 1930
1868 Hydrops callostictus Günther (Albuquerque 2000)
Pseudoeryx callostictus Cope 1886
Hydrops martii callostictus Roze 1957

Distribution: Brazil (Acre, Amapa, Amazonas, Maranhao, Para [incl. Marajo Island], Roraima), Colombia, Ecuador, Peru, Venezuela.


Hydrops triangularis

Red-sided Mud Snake, Red-and-Black Banded False Coral Snake, (Triangle Water Snake, Red-sided Water Snake)

Rotseitige Schlammnatter

Rødsidet Muddersnog

1824 Elaps triangularis Wagler
Hydrops triangularis Wagler 1830
Pseuderyx triangularis Bocourt 1895
1849 Higina fasciata Gray (Albuquerque & Lema 2008)
Hydrops triangularis fasciatus Roze 1957
1899 Pseuderyx inagnitus Bocourt (Albuquerque & Lema 2008)
1957 Hydrops triangularis bassleri Roze
1957 Hydrops triangularis bolivianus Roze
1957 Hydrops triangularis neglectus Roze
1957 Hydrops triangularis venezuelensis Roze

Remarks: Six subspecies (triangularis, bassleri, bolivianus, fasciata, neglectus, venezuelensis) were previously recognized, but Albuquerque & Lema (2008) presented evidence that none of them should be considered valid. A record from Piaui (Yuki 2007) was from a locality actually situated in Maranhao (Albuquerque & Lema 2008). A record from Mato Grosso do Sul (Albuquerque 2001) refers to caesurus, a species described subsequently (Albuquerque & Lema 2008).
Distribution: Bolivia, Brazil (Acre, Amapa, Amazonas, Maranhao, Mato Grosso, Para, Piaui, Rondonia, Roraima, Tocantins), Colombia, Ecuador, French Guiana, Guyana, Peru, Surinam, Trinidad & Tobago (Trinidad), Venezuela.