Megalonema

Eigenmann, 1912
Type species: Megalonema platycephalum
Megalonema platycephalum
Classification
 
Family
 
Group
Synonyms
Length (total)
6 - 50 cm
Similar Genus

Species

Species
Country
Origin
Length
(cm)
AQ
(cm)
T.
(°C)
Bree
ding
Megalonema amaxanthum
Lundberg & Dahdul, 2008
 
Bolivia, Brazil,Guyana,Peru
río Tahuamanu, rio Arce, Takutu River, rio Branco, rio Solimões, rio Jutaí, rio Japura, rio Tocantins, rio Negro, río Napo, río Nanay
(Pando, Acre, Amazonas, Pará, Rondônia, Roraima, Madre de Dios)
Megalonema amaxanthum
14
100
 
unknown
Megalonema argentinum
MacDonagh, 1938
 
Argentina, Paraguay
río Paraná, rio Paraguay, río Santiago
(Misiones, Buenos Aires)
Megalonema argentinum
27
180
 
unknown
Megalonema orixanthum
Lundberg & Dahdul, 2008
 
Colombia, Venezuela
Río Metica, río Meta, río Apure, río Caura, río Orinoco, río Casiquare
(Meta, Amazonas (VEN), Bolívar (VEN))
Megalonema orixanthum
15
100
 
unknown
Megalonema pauciradiatum
Eigenmann, 1919
 
Paraguay, Bolivia
río Paraguay-Einzug bei Villarica
(Guairá)
Megalonema pauciradiatum
6
60
 
unknown
Megalonema platanum
Günther, 1880
 
Argentina, Brazil, Paraguay, Uruguay
Río Paraná
(Santa Fé, Entre Ríos, Misiones, Chaco, Formosa, Rio Grande do Sul, Santa Catarina, Paraná)
Megalonema platanum, 340.0 mm SL
50
250
 
unknown
Megalonema platycephalum
Eigenmann, 1912
 
Bolivia, Brazil, Colombia, Ecuador, Guyana, Peru, Venezuela
Río Urubamba. Essequibo River, Rupununi River, río Nanay, río Napo
(Cuzco, Demerara-Berbice, Rupununi, Loreto, Meta, Apure)
Megalonema platycephalum
25
150
 
unknown
Megalonema psammium
Schultz, 1944
 
Colombia, Venezuela
Río Palmar, río Socuy, río Apón im lago Maracaibo-Einzug
(Zulia, La Guajira)
Megalonema psammium
17
120
25 - 29
unknown
Megalonema xanthum
Eigenmann, 1912
 
Colombia
Río Magdalena-Einzug bei Giradot
(Tolima, Cundinamarca)
IUCN: least concern
Megalonema xanthum - Lateralansicht
21
120
 
unknown
8  entries found.
Many thanks to
for the pictures
Matías Müller
3
Frank Alvarez (CC BY-NC 3.0)
9
Please help with your pictures and information to complete the database: database(at)welsfans.de
178