Pachymenia is a genus of cavibelonian solenogaster, a kind of shell-less, worm-like, marine mollusk. == References== ... Found on http://en.wikipedia.org/wiki/Pachymenia
Thickening of the skin or contiguous membranes. ... Synonym: pachyhymenia. ... Origin: pachy-+ G. Hymen, a membrane ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973