PlanetCatfish.com

i spotted these for sale on ebay uk location southern england but just wondered if these were hybrids as i dont recognise these ?

I don't think these are hybrids, just xanthic forms of something closely related to S. schall (S. frontosa? S. resupinata?)

he has them listed as yellow synos ?
but carnt find a match on the syno cat species page .

that's because of the odd coloration

if I point you at an albino bristlenose, you couldn't put a label on it either ;)
we know it's probably the common, but we don't for sure

the only way to be sure is
a: get a better and bigger pic with the humeral on it
b: browse to about 150 synodontis species

this is one of those brown mottled/spotted species when it's in normal coloration
the ones that show up in the trade as 'nigrita' or more often 'nigriventris' but are a whole range of closely related brownish syno's.

That's assuming it's a Syno. The shape of the adipose fin will also help greatly narow it down. My first thought was the the angle of the shots don't show the eyes too well and this is might be .

Whatever it is, I agree this is not its normal colouration, so you're not going to find it in the cat-elog I don't think. If you could get some more pics and we can ID it, I would like to add a pic for the record too.

Cheers,

Jools

Jools wrote:this is might be

Brachysynodontis batensoda

Don't think so. Snout shape, eye size and maxillary barbel morphology are all wrong for this species. Of course, if you follow Vigliotta (2008), Brachysynodontis (and Hemisynodontis) don't even exist...

Silurus wrote:

Jools wrote:this is might be

Brachysynodontis batensoda

Don't think so. Snout shape, eye size and maxillary barbel morphology are all wrong for this species. Of course, if you follow Vigliotta (2008), Brachysynodontis (and Hemisynodontis) don't even exist...

Yeah, I tend to agree, just something in the angle of the photo is offputting. As to the systematics - if that view has some traction then happy to update the catelog via a bug report. Will take your steer on it.

Jools

Not saying it actually is the fish above, but I went to macrops because of the statement below...

Does anyone know where this statement came from in the Cat-eLog for

Most easily distinguished by its distinct yellow colour. Spotted pattern especially marked in juveniles, but tends to fade with age.

Or have access to the original description as this is one I do not have?
Greenwood [P. H.] 1963:66 [Proceedings of the General Meetings for Scientific Business of the Zoological Society of London v. 140 (pt 1);

Seegers has Synodontis macrops as a

uniform brown base coloration on body and head on which there are sometimes but not always, small dark dots.

Birger