Thanks, VV! I did a recount and found one oddity, I think you missed the top pool on the final page. There's a total of 15 nymphs there.
Also, when I add up your original list I get to 224 instead of 234. Accounting for the 7 missing nymphs, the grand total should be
231, I think. Best to be checked by a third person because these things are easy to mess up, especially in the morning