Which the differences between Ancistrus dolichopterus Vs tem

Pleco33 · Post by **Pleco33** » 15 Feb 2003, 04:58

Hello that´s the cuestion How Can I identify between Ancistrus dolichopterus Vs Ancistrus temminckii.

... You know..????

Thanks...

Post by **Silurus** » 15 Feb 2003, 09:28

<i>Ancistrus dolichopterus</i> is generally much darker in color, and has more dorsal-fin rays (9 vs. 8). It's also supposed to have a markedly longer lobe of the caudal fin.

Pleco33 · Post by **Pleco33** » 16 Feb 2003, 05:24

Thanks.. well....mmm but.. When I going to buy some ones.. How Can I know.. Which .. is which.. for example .. fishbase.org.. have this images:

http://www.fishbase.org/Summary/Species ... ichopterus

And this have just 8 dorsal- fin rais.. but the next It have 9 and is :

http://www.fishbase.org/Summary/Species ... temminckii

Your image:

Or It could be the same sp..???

Thanks..

Post by **Silurus** » 16 Feb 2003, 11:23

It's next to impossible to tell which is which just by looking at color pattern alone, as several species of <i>Ancistrus</i> are known to have a spotted pattern like that.
Fin ray numbers are a lot less variable, and so is more reliably used to identify species.