opisthobranch

noun 0.708

gastropod

noun 0.614

pulmonate

noun 0.605

epibranchial

noun 0.598

brachiopod

noun 0.583

molluscan

noun 0.582

mollusc

noun 0.563

nudibranch

noun 0.561

phragmocone

noun 0.550

conchologist

noun 0.544

protostome

noun 0.542

trochophore

noun 0.539

teleoconch

noun 0.536

blastopore

noun 0.527

trochospiral

noun 0.526

endostome

noun 0.522

periostracum

noun 0.520

pond snail

noun 0.519

conchology

noun 0.517

conch

noun 0.515

abalone

noun 0.513

prosoma

noun 0.507

cone snail

noun 0.505

cheilostome

noun 0.505

univalve

noun 0.504

brachyuran

noun 0.502