What is the different of Pseudopimelodus apurensis & fow

Piranha · Post by **Piranha** » 21 Aug 2004, 12:49

Someone could tell me what is the different between this two species??

Thanks!

Post by **Silurus** » 24 Aug 2004, 20:37

The only way to reliably tell these two apart is to look at the gill rakers: Cephalosilurus apurensis has more gill rakers than C. fowleri. The gill rakers in C. apurensis are also shorter.

amiidae · Post by **amiidae** » 04 Dec 2004, 12:17

Silurus wrote:The only way to reliably tell these two apart is to look at the gill rakers: Cephalosilurus apurensis has more gill rakers than C. fowleri. The gill rakers in C. apurensis are also shorter.

Whats a "gill rakers" ? any diagram or pic will be helpful.

thks

Post by **Silurus** » 04 Dec 2004, 13:03

Gill rakers are bony or cartilaginous projections which point forward and inward from the gill arches.

amiidae · Post by **amiidae** » 04 Dec 2004, 14:52

Silurus wrote:Gill rakers are bony or cartilaginous projections which point forward and inward from the gill arches.

if i understand you correctly..... that's mean you need to ply open the gill of the cat inoder to see the gill rakers ?

Post by **Silurus** » 04 Dec 2004, 15:48

Yes. Not something you want to do with a live fish.