in your browser.
"Leptochelae" is likely derived from the Greek "lepton" (thin or slender) and "chelae" (plural form of chela, or claw).
Given that there are numerous giant isopods milling about the zone in which this helmet is found, I find it likely that it's named after the genus of
. Admittedly, that name more than likely derives from the greek or latin originally.