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I thought that since I'm gonna be out on Sunday and that I've been missing all these weeks, I mind as well give you two this week.

RFotW April Fools -- Corydoras revelatus

Okay, this is an extremely rare Callichthyid. I have only ever seen one specimen of this particular species of fish. Ever. You know how I always try to find a pic but, well... It's nigh impossible finding a pic of this fish. However, trust me, it doesn't look too much different from your other Corydoras, although it's a slightly more primitive in appearance. This Corydoras in particular has so far been found exclusively in Argentina.

Like all other Corydoras, C. revelatus will be quite happy in whatever glass box you put it in, though with the price you might pay for it if you ever do find this fish for sale, you'll probably want to keep up with the maintenance in whatever size you put it in. Of course, it doesn't matter if it's a rare fish or not, you should be keeping up with maintenance anyway!

On the other hand, C. revelatus is actually one of the smaller Corydoras. The specimen I saw, though really old, still hadn't pushed much past an inch in length yet. In fact, this Corydoras isn't harmed because of being in really small quarters, so, once again, if found, is a good option for collectors without much room.

It really makes no difference how many other Corydoras you keep with the C. revelatus. You'd think since most Corydoras school together, placing a C. revelatus among them would allow the C. revelatus to swim with some friends. Unfortunately, C. revelatus really will just sit there doing nothing no matter what it's put with, which is perhaps a downside.

Well, let's get down to the price. This fish is, like said, godawfully rare. I'm not even going to venture a price on this fish...
































APRIL FOOLS!

Okay, if you hadn't figured it out by now, this was an April Fools Joke. Probably a couple of you already knew about this discovery, but hey, points for me if I at least taught one person a new fish, eh? Okay, perhaps I'm really bad at pranks, but I can try, right?

This week's fish is actually... a fossil.



So basically no dice on actually getting one, but cool just the same.

Links:

http://www.scotcat.com/articles/article49.htm

Past RFOTW:
1. Polynemus paradiseus -- Paradise threadfin
2. Anableps anableps -- Four-Eyed Fish
3. Hypancistrus zebra -- Zebra Plec
4. Potamotrygon sp. -- Pearl Ray
5. Merodontotus Tigrinus -- Tigrinus Catfish, Zebra Shovelnose
6. Rhinopias aphanes -- Merlet's Scorpionfish, Lacy Scorpionfish
7. Tetraodon pustulatus
8. Astronotus orbicularis -- Bumblebee Oscar
9. Parambassis pulcinella -- Rhino Glassfish, Humphead Glassfish
10. Lepisosteus platyrhincus -- Golden Florida Gar
11. Polyodon spathula -- Missippi Paddlefish
12. Pterois radiata -- Radiata Lionfish, Clearfin Turkeyfish
13. Panaque suttonorum, Panaque suttoni -- Blue Eyed Plec
14. Potamotrygon sp. -- P14, Itaituba Ray
15. Brachyplatysoma juruense -- Juruense Catfish, False Tigrinus, Alianza Cat
16. Neoceratodus forsteri -- Australian Lungfish, Queensland Lungfish
17. Paracheirodon simulans -- False Neon Tetra, Green Neon Tetra
18. Osphronemus laticlavius -- Red Tailed Giant Gourami
19. Osphronemus exodon -- Elephant Ear Gourami
20. Synodontis granulosus
21. Siganus guttatus -- Orange Spotted Rabbitfish, Gold Spot Rabbitfish

Last edited by Shinigami at 02-Apr-2005 09:48[/font]

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The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian.

lol ]], hmm fossil

Happy April to you as well.

-Molly
Visit shelldwellers.com!

Ah yes, the ultimate Trivial Pursuit question catfish.

Corydoras revelatus was discovered by Cockerell in 1925. The fossil dates back to the Eocene era (around 50-60 million years ago), which shows that Corydoras have been around a very long time. Although a question remains to be asked as a result of this!

The African Rift Lakes are extremely young in geological terms - no more than around 13,000 years old. Yet in that time, a few ancestral Cichlids have radiated out into something like 1,300 species in the Rift Lakes. Yet the Corydoras have only radiated out into around 200 species in over 50 million years. Anyone know why there should be such a vast difference in speciation rates between these fishes?

Admittedly the Catfishes as a whole have radiated out not only into many species in the Amazon, but into a diverse collection of Families too. But if the Catfishes had radiated out to the same extent as the Rift Lake Cichlids, then we should be enjoying something like 10 million species of Corydoras alone!

Now there's an amazing thought. Ten million species of Corydoras. They'd need their own offshoot of FishProfiles just to themselves


Last edited by Calilasseia at 02-Apr-2005 19:05

Panda Catfish fan and keeper/breeder since Christmas 2002