I predict that eventually the Warmouth will be split out of Lepomis, as well as another known as the Bantam Sunfish. Not all possible hybrids have been evaluated and I have been unable to replicate some of what was claimed. When it comes to viability for a few days, you can replicate that using your spew crossing with several centrarchid species.
No doubt changes will occur as we learn more. The problem becomes as we learn to measure/quantify in greater and greater detail (in all fields including genetics) more and more differences will be found. At some point differences (measured amounts) become too remote and similarities are ignored. Who knows where to draw the line.
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