BEAUTIES OF KILLIES

 

 

Diversity of color patterns

 

The diversity of color patterns among killifish species is incredible and unique (greater than coral fishes!), as a mirror of their genetic diversity.
As an example, photos of several populations of the African Aphyosemion bualanum or Nothobranchius kafuensis are presented in the small gallery, on top.
A reason why aquarium populations must be named (usually, after the place of origin) and separated to avoid hybrids that are fully sterile. For example, Aphyosemion bitaeniatum - Lagos (the population was collected near Lagos, the city of Nigeria, Africa)

Therefore the options are nearly infinite: the 1100+ valid species turn out into more than 4000 aquarium populations !

 

Color pattern and Morphological diversity:

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Austrolebias wolterstorffi © J.-F. Fels

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Austrofundulus limnaeus:

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Aphyosemion herzogi:

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Pattern variability between 2 species of the same genus, e.g. Nothobranchius.
Note the differences in the respective insertion of Dorsal and Anal fins (jubbi, ex-neumanni, advanced ; elongatus, moved backwards) : 

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Pattern variability within a species, e.g., Aphyosemion bualanum

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Pattern variability on Nothobranchius kafuensis

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Blue phase and Yellow phase of a single species:
Fundulopanchax gardneri mamfensis:

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Discover more on Killies? 

  • What are they? INTRODUCTION to Killies
  • Their biotopes and social and sexual behavior? ECO-ETHOLOGY
  • The list of all taxa with their current names, compared to previously USED names
  • The huge database with thousands of pages, photos and maps is only accessible to K-D-I members, after free REGISTRATION