DistributionRead full entry
Range DescriptionSpecies documented from four scattered locations around the Galapagos Islands in the Southeast Pacific as per the original species description (Quaranta et al. 2006). See Quaranta et al. (2006) for exact collection details.
Quaranta et al. (2006) notes that given the high degree of endemism of fishes around the Galapagos Archipelago, H. alphus is likely to be endemic to the islands.