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This is a Ilyodon xantusi (Goodeid species).
These are Girardinus falcatus.
These are Allodontichthys tamazulae (goodeid species).
These Xiphophorus maculatus Rio papaloapan (wild platy species).
These are Zoogoneticus purhepechus (Goodeid species).
These are Alloophorus robustus (Goodeid species).
This is a female Xenotoca eisini (Goodeid species).
This is a Characodon lateralis (red variety). This is a Goodeid species.
These are Alfaro cultratus (Knife livebearer).
These are Brachyrhaphis roseni.
These are Phallichthys tico.
These are Poecilia cuneata (wild molly species).
These are Xiphophorus meyeri (wild platy species).
These are Ameca splendens (Butterfly splifin). This is a Goodeid species.
Of course, there are way more livebearer species in the wild than these. So, don't think that when we speak about livebearers that there are only guppies, mollies, swordtails and platies.
And of course, I've got also a serious number of fancy breeds of livebearers at home.