Difference between Corydoras and Aspidoras?

Mike_Noren · Post by **Mike_Noren** » 28 May 2007, 14:03

Just curious - are there any characters which separate the genera Aspidoras and Corydoras?

I've been told there's nothing which separates Brochis from Corydoras except tradition, and that Brochis really are just big Corydoras - is it the same situation with Aspidoras?

Post by **Silurus** » 28 May 2007, 14:13

Presence of a supraoccipital fossa, reduction of the frontal fontanel and very short dorsal- and pectoral-fin spines diagnose Aspidoras.

Mike_Noren · Post by **Mike_Noren** » 28 May 2007, 14:20

Thank you!

YouTube · Post by **Jools** » 28 May 2007, 14:42

Mike_Noren wrote:I've been told there's nothing which separates Brochis from Corydoras except tradition, and that Brochis really are just big Corydoras

have more dorsal fin rays that however, if one takes the point of view you express, then it is not a big leap at all to think that all could be split out into about 8 genera and none would be much more different from each other than is from right now.

Take for example the resurrection of Microcorydoras to house and all the other small, bullet nosed species. That wouldn't be much further away from than .

Jools

Mike_Noren · Post by **Mike_Noren** » 28 May 2007, 19:34

Well, I know next to nothing about Callichthyids, but to me it looks like there are several pretty obvious and presumably monophyletic groups within Corydoras, so I would expect Corydoras to eventually be split up.

Difference between Corydoras and Aspidoras?

Difference between Corydoras and Aspidoras?

Re: Difference between Corydoras and Aspidoras?