Nope. Sirine is the correct spelling according to AD&D ed.1 (Fiend Folio, I believe). I have on occasion spelled some of the mythical creatures names differently by mistake or on purpose, since these creatures don’t actually exist and I can call them what I want. By differentiating them from the accepted, I can change details about them. ie: (theoretical critical reader)"Hey, Sphinxes don’t spit fire!" (me)"Perhaps. But SPHYNXES can!"
2nd frame – "sirines" – a typo?
Nope. Sirine is the correct spelling according to AD&D ed.1 (Fiend Folio, I believe). I have on occasion spelled some of the mythical creatures names differently by mistake or on purpose, since these creatures don’t actually exist and I can call them what I want. By differentiating them from the accepted, I can change details about them. ie: (theoretical critical reader)"Hey, Sphinxes don’t spit fire!" (me)"Perhaps. But SPHYNXES can!"
The plural would be Sphinges.
Classical education speaking, here. I’m really fun at parties.
Ah
*Insert Popular Drunk Song*