The solution to Bit-o-Critter round 27

The last BoC was a triple header from previous winner Sarah F. and you had to get 2/3 scientific names correct.  David Gross was the first to do that, correctly identifying the first as a reticulated brittle star Ophionereis reticulata and the third as a flamingo tongue snail Cyphoma gibbosum

 

Nobody got the third one, which was a fireworm, Hermodice carunculata.  That's one of very few BoC's that has never been solved