For those interested in this sort of thing:
http://www.mapress.com/zootaxa/2015/f/z03973p380f.pdf
Retroculus archerontos, formally known as Retroculus sp. Alto Tocantins, was photographed by Oliver Lucanus and featured in a 2011 issue of Cichlid News magazine. There is a picture on Cichlid Room Companion, and also on Oliver Lucanus's Below Water Facebook page:
https://www.facebook.com/belowwater...876785353/1640998429503562/?type=1&permPage=1
The yellowish-red coloration, black blotches, and fact that the fish do display nuchal humps immediately made me think of Geophagus pellegrini.
http://www.mapress.com/zootaxa/2015/f/z03973p380f.pdf
Retroculus archerontos, formally known as Retroculus sp. Alto Tocantins, was photographed by Oliver Lucanus and featured in a 2011 issue of Cichlid News magazine. There is a picture on Cichlid Room Companion, and also on Oliver Lucanus's Below Water Facebook page:
https://www.facebook.com/belowwater...876785353/1640998429503562/?type=1&permPage=1
The yellowish-red coloration, black blotches, and fact that the fish do display nuchal humps immediately made me think of Geophagus pellegrini.