Criterias:
Country: Paraguay
Genus species supplement - exakt: Megalonema

Species
Country
Origin

Length
(cm)

AQ
(cm)

T.
(°C)

Bree
ding

Megalonema argentinum
MacDonagh, 1938
 
Argentina, Paraguay
río Paraná, rio Paraguay, río Santiago
(Misiones, Buenos Aires)

27

180

 

unknown

Megalonema pauciradiatum
Eigenmann, 1919
 
Paraguay, Bolivia
río Paraguay-Einzug bei Villarica
(Guairá)

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)

50

250

 

unknown

3  entries found.

You can use the following URL for a later call of the search result - f.e. in other site
https://www.suedamerikafans.de/wels-datenbank/gefunden/?db_familie=alle&db_unterfamilie=alle&db_land=Paraguay&db_bezeichnung=Megalonema&db_bezeichnung_exakt=ja&db_show=bilder

Many thanks to

for the pictures

Matías Müller

1

California Academy of Sciences (CCO (PD))

2

R.R. Ota, G. de Carvalho Deprá, W.J. da Graça & C.S. Pavanelli (CC BY-NC 4.0)

3

Please help with your pictures and information to complete the database: database(at)welsfans.de