cyclostome

noun 0.611

amphioxus

noun 0.604

hagfish

noun 0.602

lancelet

noun 0.595

leech

noun 0.572

agnathan

noun 0.570

anglerfish

noun 0.569

moray eel

noun 0.567

paddlefish

noun 0.564

piranha

noun 0.560

limpet

noun 0.559

lungfish

noun 0.557

eelpout

noun 0.554

plesiosaur

noun 0.547

flatfish

noun 0.544

flatworm

noun 0.538

surfperch

noun 0.536

elasmobranch

noun 0.536

amphibian

noun 0.536

sawfish

noun 0.535

pinniped

noun 0.533

planarian

noun 0.532

parasite

noun 0.532

vertebrate

noun 0.531

tadpole

noun 0.530

salamander

noun 0.529

remora

noun 0.529

lizardfish

noun 0.529

pelvic fin

noun 0.526

clupeid

noun 0.526

shark

noun 0.520

tetrapod

noun 0.520

tarpon

noun 0.519

urodele

noun 0.517

placoderm

noun 0.516

actinopterygian

noun 0.514

conger eel

noun 0.514

chondrichthyan

noun 0.513

pipefish

noun 0.513

electric eel

noun 0.513

tapeworm

noun 0.512

burbot

noun 0.511

blenny

noun 0.510

bowfin

noun 0.508

larva

noun 0.508

platypus

noun 0.508

piscivore

noun 0.507

pond snail

noun 0.507

alewife

noun 0.507

lionfish

noun 0.507

annelid

noun 0.506

chordate

noun 0.506

leper

noun 0.506

lanternfish

noun 0.506

nematode

noun 0.506

needlefish

noun 0.506

earthworm

noun 0.505

pterosaur

noun 0.504

bony fish

noun 0.503

vampire

noun 0.503

fish

noun 0.501

pterodactyl

noun 0.501

catshark

noun 0.500

serpulid

noun 0.500