Mazaruni River

Mazaruni River → Essequibo River (⪪) → Atlantic NE (⪪)

Water system: Mazaruni River ( max. 5 steps)

Country

Guyana

Region

Cuyuni-Mazaruni

Length

560 km

General direction

NE 67.83°

Starts near

[ 5.822,-60.100 ]

Altitude

970 m

Tributaries
(Without claiming to be exhaustive):

Sorting
up/down

≽

⊗

Cuyuni River (⪪)

[ 6.386,-58.689 ]

≼

⊗

Eping Creek

[ 6.147,-60.051 ]

≼

⊗

Issano River

[ 5.811,-59.453 ]

≽

Kako River (⪪)

[ 5.738,-60.595 ]

≽

⊗

Kamarang River

[ 5.869,-60.607 ]

≼

⊗

Kukui River

[ 5.689,-60.286 ]

≽

Kumu Creek

[ 6.359,-58.704 ]

≽

⊗

Kurupung River

[ 6.230,-60.156 ]

≼

⊗

Meamu River

[ 6.343,-60.369 ]

≼

⊗

Semang River

[ 5.743,-59.614 ]

Ends near

Bartica

Flows in

≽

Essequibo River

[ 6.420,-58.631 ]

Time, position

Cond.

w.temp.

[ 6.060,
-60.659 ]

23.00-24.00

5.00

Sep.04

10.00

28.00

6.40

1995- 1996
Apaikwa Falls
[ 6.350,
-60.367 ]

13.80

Fishes of Mazaruni River
(Without claiming to be exhaustive)

Species
Country
Origin

Length
(cm)

AQ
(cm)

T.
(°C)

Bree
ding

Ancistrus lithurgicus
Eigenmann, 1912

Guyana
Mazaruni-River, Essequibo River-Einzug
(Cuyuni-Mazaruni)

100

24 - 28

unknown

Brachyglanis melas
Eigenmann, 1912

Guyana
Warraputa, Mazaruni River bei Crab Falls, Essequibo River-Einzug
(Cuyuni-Mazaruni)

unknown

Denticetopsis macilenta
Eigenmann, 1912

Guyana
Potaro River-Einzug, Mazaruni River
(Cuyuni-Mazaruni, Potaro-Siparuni)

Eigenmann, C.H., 1912 "The freshwater fishes of British Guiana, including a study of the ecological grouping of species, and the relation of the fauna of the plateau to that of the lowlands"
Henn, A.W., 1928 "List of types of recent fishes, in the collection of the Carnegie Museum on September 1, 1928"
Ibarra, M. & Stewart, D.J., 1987 "Catalogue of type specimens of recent fishes in Field Museum of Natural History"

unknown

Haemomaster venezuelae
Myers, 1927

Brazil, Guyana, Colombia, Venezuela
Río Orinoco-Einzug, río Caura, río Tomo, Mazaruni River, Cuyuni River
(Amazonas (VEN), Bolívar (VEN) Vichada, Cuyuni-Mazaruni)

unknown

Hypostominae sp. "L 376"

Guyana
Kamarang River, oberer Mazaruni River
(Cuyuni-Mazaruni)

Stawikowski, Rainer, 2005 "Unbeschriebene Art und Gattung"
PCF

20 - 25

unknown

Hypostomus hemiurus
Eigenmann, 1912

Guyana
Potaro River, Mazaruni River, Rupununi River
(Cuyuni-Mazaruni, Potaro-Siparuni, Upper Takutu-Upper Essequibo)
IUCN: least concern

120

23 - 29

unknown

Leptorhamdia essequibensis
Eigenmann, 1912

Brazil, Guyana
Crab Falls, Konawaruk, Essequibo River, unterer Rio Tocantins
(Cuyuni-Mazaruni, Pará (BRA))

Leptorhamdia essequibensis from King William falls, Guyana

120

unknown

Mastiglanis sp. aff. asopos

Brazil, Guyana, Venezuela
Rio Purús, rio Cristalino-, rio Bacajái, rio Madeira-Einzug, Essequibo-River, Burro Burro River, Ireng River, Rupununi River, Mazaruni River, río Orinoco, río Sipapo, río Ventuari, río Manapiare
(Amazonas (BRA), Mato Grosso, Pará (BRA), Rondônia, Potaro-Siparuni, Alto Demerara-Berbice, Alto Takutu-Alto Essequibo, Cuyuni-Mazaruni, Bolívar (VEN), Amazonas (VEN))

Faustino-Fuster, D.R. & Ortega, H., 2020 "A new species of Mastiglanis Bockmann 1994 (Siluriformes: Heptapteridae) from the Amazon River basin, Peru " (abstract)

unknown

Neblinichthys brevibracchium
Taphorn, Armbruster, López-Fernández & Bernard, 2010

Guyana
Kukui, Waruma, Paikwa, oberer río Mazaruni-Einzug
(Cuyuni-Mazaruni)

Neblinichthys brevibracchium, holotype, CSBD 1653, 73.3 mm SL, lower Kukui River at Jawalla, uper Mazaruni River drainage, Guyana

24 - 28

unknown

Paracanthopoma alleynei
Henschel,Berndt, Baskin,Schmidt & Lujan, 2021

Brazil, Guyana
Mazaruni River, rio Baraúna, igarapé Água Boa
(Cuyuni-Mazaruni, Roraima)

Henschel,E.;Bernt, M.J.; Baskin,J.N.;Schmidt, R.E. & Lujan, N.K., 2021 "Osteology-focused redescription and description of the blood-feeding candirus Paracanthopoma parva and Paravandellia alleynei sp. n."

unknown

Paracanthopoma parva
Giltay, 1935

Bolivia, Brazil, Equador, Guyana, Colombia, Venezuela
Rio Catrymany = rio Catrimani, Essequibo River, Mazaruni River, Cuyuni River
(Roraima, Cuyuni-Mazaruni )

Giltay, L., 1935 "Notes ichthyologiques. X. Description d'une espèce nouvelle de Trichomycteridae"
Schmidt, R.E., 1993 "Relationships and notes on the biology of Paracanthopoma parva (Pisces: Trichomycteridae)"
Ferraris, C.J. jr., 2007 "Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types (II)"

unknown

Paralithoxus cf. raso "L 435" / "LDA 66"

Brazil, Guyana
Rio Branco, Rio Mazaruni
(Roraima, Cuyuni-Mazaruni)

23 - 27

unknown

Pimelodella megalops
Eigenmann, 1912

French Guiana, Guyana, Suriname
Tumatumari, Crab Falls, Approuague, Essequibo River
(Cuyuni-Mazaruni, Essequibo Islands-West Demerara, Upper Demerara-Berbice, Pataro-Siparuni, Upper Takutu-Upper Essequibo)

unknown

Rhinotocinclus britskii
Boeseman, 1974

Brazil, Guyana, Suriname, Venezuela
Coppename River, Nickeri River, Mazaruni River, río Orinoco-Einzug, rio Solimões, rio Canumã
(Amazonas (BRA), Amazonas (VEN), Mato Grosso)

26 - 29

unknown

Trachydoras microstomus
Eigenmann, 1912

Bolivia, Brazil, Guyana, Venezuela
Essequibo River, río Orinoco-, Amazonas-Einzug, rio Madeira, rio Jutaí, rio Negro, rio Trombetas, rio Guaporé = río Iténez, Crab Falls
(Amazonas (BRA))

unknown

Tympanopleura piperatus
Eigenmann, 1912

Brazil, Guyana, Colombia, Peru
Potaro River, Essequibo River, Rupununi River, Crab Falls, rio Solimões, rio Negro, Amazonas
(Potaro-Siparuni, Upper Takutu-Upper Essequibo, Amazonas)