I’d be surprised if this happened - H. chloropterus itself is closer in relation to the Coris genus (it’s closest relative is Coris batuensis). If it was to be moved it’s more likely to be moved into that genus.
Similar to this, if this was the case with Halichoeres chrysus due to it’s relations within the Biochoeres complex. It would be more likely that if Halichoeres chrysus moved into Pseudocoris, it would have to move Halichoeres leucoxanthus (the sister species within the Indian Ocean) and possibly Halichoeres iridis as well (the closest relative to Chrysus).
If you like charts, here’s the one I use for the Halichoeres complexes and the general they’re closest in relation to.
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Leuco ain’t movin. Told me so.








