aplacophoran means any benthic mollusc of the class Aplacophora.
Among words judged in Lexicurio's Arena, aplacophoran ranks #16,222 of 20,824 for Qualifying.
Etymology
Aplacophora + -n
noun
- Any benthic mollusc of the class Aplacophora.“The aplacophoran mollusc Chaetoderma sp. occurred only at 500 m.”