Selection: Micromelo undata

Micromelo undata (Bruguière, 1792) [Bulla]

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Micromelo undata is characterized by a thinly calcified shell with wavy red/brown lines (as the specific name undata suggest, it is a Latin word meaning wavy) and large colourful body. It feeds on cirratulinid Polychaeta worms.
There is still some discussion on the correct name:
Micromelo undata, Micromelo undatus or Micromelo undatum
Dr. Richard Willan writes at the Sea Slug Forum
"The name Micromelo is feminine and, because the specific name is an adjective meaning wavy, it must agree with the gender of the genus. So the correct name is Micromelo undata (Bruguiere, 1792)."
according to WoRMS - World Register of Marine Species
http://www.marinespecies.org/index.php
is the accepted name Micromelo undatus (Bruguière, 1792)
IPN uses the name Micromelo undatum (Bruguière, 1792) at page 19:
Gosliner, Terrence M., David W. Behrens & Ángel Valdés. 2008. Indo-Pacific Nudibranchs and Sea Slugs. Sea Challengers Natural History Books.
Gig Harbor, Washington. 426pp.
NUDIPIXEL uses the name Micromelo undata (Bruguière, 1792).
More informations on Micromelo undata are at Bill Rudman's Sea Slug Forum!