Some notes from previous Satanoperca
work*: "Besides the described species in this clade, several authors have suggested putative undescribed species based on subtle morphological variation. Two of the most distinct are Satanoperca
sp. “Negro-Alto Orinoco” from the upper Negro and upper Orinoco Rivers in Venezuela (S.O. Kullander, pers. com. to H. López-Fernández and D.C. Taphorn) and Satanoperca sp. “red lips”
from southeastern drainages of the Guyanas and Amapa in Brazil (Araguari, Amapa Grande, Oiapoque) (Weidner, 2000).
In the case of our putative samples of Satanoperca
sp. “red lips” from the Araguari River in Amapa, we saw no sharing of haplotypes from this locality with fishes from other localities of nominal S. jurupari
or S. leucosticta
(both geographically adjacent species), a pattern that at face value could imply genetic distinctness..."
* = from Species-level phylogeny of ‘Satan’s perches’ based on discordant gene trees (Teleostei: Cichlidae: Satanoperca).
Molecular Phylogenetics and Evolution. Available online 1 March 2012.
Change in habit, producing change of function, is the main cause of the production of change in living structure. F. Wood Jones (1953) Trends of life