Any idea what's this little fella?

philtre · Post by **philtre** » 12 Nov 2003, 16:56

Had him in a columbia shipment. Any idea what he could be?

more pictures of him here
http://www.corydorasworld.com/planetcat ... y/album138

Thanks very much in advance for the help!!!!

Cheers
phil

Post by **Silurus** » 12 Nov 2003, 17:07

Oxyropsis wrightiana.

This is the only species known from Colombia, so I'm using distribution as a guide more than anything else.

philtre · Post by **philtre** » 12 Nov 2003, 17:40

ok ... thanks Silurus

so ... it is a oxyropsis? just that species wise you're basing it on the "location"?

thanks thanks.

BTW, know of any place where I can find more information about these fellas and the fellas in the hypoptopomatinae family?

can't seem to find any substantial resources on the web. Really intrigued by these little fellas and was hoping that I could find out more information about them.

Thanks in advance,
phil

Post by **Silurus** » 12 Nov 2003, 20:01

so ... it is a oxyropsis? just that species wise you're basing it on the "location"?

Yes, there are only three valid species of Oxyropsis, and only O. wrightiana is known from Colombia.

Other than what is already in the Cat-eLog, there is very little info out there on hypoptopomatines. You might want to try the Mergus Welsatlas (or wait for the English version) for more info.

YouTube · Post by **Jools** » 12 Nov 2003, 21:05

Now, this one I find very interesting indeed. Maybe it is <I>Nannoptopoma spectabile</I> (Eigenmann, 1914) from Colombia. Can we have lots more pictures please - this would be a great addition to the cat-elog.

Jools

plesner · Post by **plesner** » 12 Nov 2003, 21:14

I agree on Nannoptopoma spectabilis. There's a picture of an extremely similar fish in Mergus Wels Atlas. It also says 3 cm TL, eats lots of greens, needs regular water changes and lots of filtration and water movement.

Post by **Silurus** » 12 Nov 2003, 21:21

I am not convinced that it is Nannoptopoma. The caudal peduncle is too slender, for one (Nannoptopoma looks a lot like Otocinclus superficially), and N. spectabilis is said to have a diffuse pigmentation pattern on the body (I can see distinct blotches on the fish in the picture).
The slender caudal peduncle is more typical of Oxyropsis. The only other hypoptopomatine genus with a slender caudal peduncle is Acestridium, but it has a much longer snout.

YouTube · Post by **Jools** » 12 Nov 2003, 21:26

Silurus wrote: The caudal peduncle is too slender, for one (Nannoptopoma looks a lot like Otocinclus superficially)

True, I think balance of opinion swings back to Oxyropsis.

Some better lit pictures would help as well with the colouration and I'd also like to get a good look at the eyes.

Jools

philtre · Post by **philtre** » 13 Nov 2003, 14:04

heheh .... thanks for lookin into this!

finally a half decent picture

rest of the pics of this little fella in my gallery
http://www.corydorasworld.com/planetcat ... y/album138

Thanks in advance!!!!

Cheers!
phil

Post by **Silurus** » 13 Nov 2003, 16:57

Guess I made a mistake. It seems that O. acutirostra is also found in Colombia, and from the depth of the caudal peduncle and the shape of the snout, I'd say your fish is O. acutirostra and not O. wrightiana.

philtre · Post by **philtre** » 15 Nov 2003, 13:29

Hi Peeps!

Thanks very much for helping me id this little fella!

Glad to finally be "formally introduced" to this little fella.

Cheers!
phil

PS: I suppose there's not where I could find more info about this little O.acutirostra?