TwoTankAmin
Fish Connoisseur
I protest the supposed correct answer to the arcuatus question. This fish does not have a main river. It is found throughout the upper amazon basin and perhaps beyond Brazil.
In fact the Japanese site lists it as being from "Place: Peru Rio Ucayali, Rio Napo,Rio Yavari, Rio Purus."
http/www.nettaigyo.com/corydoras/encyc/index-e.html
There are a couple of variety of arcuatus the come from the above rivers.
Seriously Fish states this:
Mongabay says:
Fisgbase says this:
Nobody seems to agree with the supposed correct answer. What does seem apparent is there is no correct answer to the questions since there is no one river. In fact there seems to be evidence that the fish is found in multiple countries and rivers.
If one of the reasons for this thread is to be educational, then it behooves folks to insure the correctness of what they ask and what they feel is the correct answer. The one thing I know for sure is the answer given by KB in this respect was not correct since no single river would have been.
In fact the Japanese site lists it as being from "Place: Peru Rio Ucayali, Rio Napo,Rio Yavari, Rio Purus."
http/www.nettaigyo.com/corydoras/encyc/index-e.html
There are a couple of variety of arcuatus the come from the above rivers.
Seriously Fish states this:
from http/www.seriouslyfish.com/species/corydoras-arcuatus/
This species was described from an aquarium specimen so its type locality is unknown although the holotype is said to be from ‘? Teffe, Amazon’ which would appear to correspond to the city of Tefé in Amazonas state, Brazil, some 500 km west of Manaus on the rio Solimões.
Mongabay says:
from http/fish.mongabay.com/corydoradinae.htm
H: Along banks of slow-moving rivers. South America; found near Tef, Brazil, in the Tef and Amazon Rivers.
Fisgbase says this:
from http/www.fishbase.org/summary/12159
Distridution
South America: Upper Amazon River basin.
Nobody seems to agree with the supposed correct answer. What does seem apparent is there is no correct answer to the questions since there is no one river. In fact there seems to be evidence that the fish is found in multiple countries and rivers.
If one of the reasons for this thread is to be educational, then it behooves folks to insure the correctness of what they ask and what they feel is the correct answer. The one thing I know for sure is the answer given by KB in this respect was not correct since no single river would have been.