Does anthro dolphins, at least on top of YiffyMix, probably badly. Only tested with the full e621 dolphin species implications for ordinary anthro dolphins (but you can probably get away with less):

dolphin, cetacean, toothed whale, marine mammal

And my sona's likeness with (remember escaping the parens if using A1111):

dolphin, synth (vader-san), hybrid, strake