Figure 5.

Different phenotypes of G. barreimiae. a: surface fish from Wadi Al Falahi, b: troglomorphic fish from the Al Hoota Cave, c-f: different morphs of fish caught in the Wadi Al Falahi, which all belong to the "cave haplogroup". Troglomorphic state of individuals: b and c-e: clearly reduced eyes, a and f: eyes appear to be functional. Fish lengths (SL): 26 - 31 mm.

Kruckenhauser et al. BMC Evolutionary Biology 2011 11:172   doi:10.1186/1471-2148-11-172
Download authors' original image