Friday, 17 April 2009

THE UNIDENTIFIED FISHES OF YOUTUBE - Part Three

Time for a slight change now I feel. We can now look at a number of different videos showing undiscribed fish. First is this handsome fellow:

It is another cafish, but this time it is from the family Aucheripteridae, or the driftwood catfishes. These are a cracking group that is rarely seen in captivity because few people want a catfish that sits under driftwood all day and is generally of a nervous disposition. I, obviously, love them to bits.

I have no idea what this fellow is, so that will do for now on taxonomy. There is one interesting footnote to this specuies though. The chap in the film is a male which is shown by a very strange modification. If you look at his anal fin, he first few rays of it are modified into a copulatory organ much like that seen in fish like guppys and platys. This family of catfish are the only ones to have evolved such a device, making them a very interesting group indeed.



Here is another Loricariidae catfish. Nothing to say here other than it is a male again.



http://www.youtube.com/watch?v=stWLsqJFfRs

No comments:

Post a Comment