I just realized, that there are two entries for Ancistrus stigmaticus in the Cat-eLog:
http://www.planetcatfish.com/catelog/sp ... es_id=1969 (with pictures)
http://www.planetcatfish.com/catelog/sp ... es_id=2044 (without pictures)
Besides the pictures, they apparently only "differ" in the respective referecence: it`s "Proceedings of the California Academy of Sciences (Series 2) v. 2" vs. "Proc. Calif. Acad. Sci. (Ser. 2) v. 2".

They even share the same clog-tag: curious, which one is chosen, then!

(appears to be the older one, provided species_id is an indication of age..)
I believe, that´s not the way it´s meant to be..

Cheers, Sandor