CLASSIFICATION OF ANIMALS 249 
Class II, Ophiuroi’dea (ophis, serpent; ouwra, tail; eddos, likeness). 
Serpent- or brittle-stars, basket-stars. 
Class III, Hélothuroi’dea (holothurion, a kind of water polyp; 
etdos, likeness), 
Sea-cucumbers, 
Class IV. Crinoi'dea (crinon, lily; eidos, likeness). 
Sea-lilies or crinoids, 
Class V. Echinoi’dea (echinos, hedgehog ; evdos, likeness). 
Sea-urchins. 
Brancn XII, ARTHROP'ODA (arthron, joint; pous, foot) 
Class I. Crusta'cea (crusta, « crust or shell). 
Fairy-shrimp (Brdnchtp'us), water-fleas (Daph'nia), cop'epod, 
C¥ clops, goose barnacle, acorn barnacle, Sdccult’na, opossum- 
shrimp, prawn, lobster, crayfish, cancer-crab, rock-crah, pill- 
bug or i’sopod, sand-hopper or amphipod. 
Class II. Onyc8ph'ora (onyz, claw; phero, to carry). 
Périp'atus). 
Class III. Myridp'oda (myrios, numberless; yous, foot). 
Cent’iped, thousand-legs. 
Class IV. Insée'ta (insectwm, cut in, owing to the grooves surround- 
ing the body). 
Fishmoth, springtail, cockroach, grasshopper, cricket, katydid, 
locust, dragon-fly, caddis-fly, may-fly, white ants or termites, 
ant-lion, water-boatman, water-bug, back-swimmer, chinch- 
bug, squash-bug, lice, plant-lice, Phglldz'era, scale-insect, 
gnat, mosquito, flea, house-fly, stag-beetle, wood-beetle, water- 
beetle, potato-beetle, ladybug, firefly, moth, butterfly, ants, 
honey-bees and bumblebees, wasps, hornets, yellow-jackets. 
Class V. Arachnida (arachne, spider). ; 
Garden-spider, tarin'tula, bird-spider, trap-door spider, mite, 
tick, king-crab or horseshoe crab. 
Brancu XIII. CHORDATA (chorda, a cord, referring to the 
notochord) 
Supprancn J. Adelochor'da. Class Adelochorda. 
Supsrancg II. Urochor'da. Class Urochorda. 
” Sea-squirts, Tunica’ta, Ascid’ians. 
Suspprance II]. Vertebra'ta (vertebratus, jointed). 
Division A. Acra'nia (a, without; cranion, skull). Class Lepto- 
cardii. 
Lancelet (Branchids’toma = Amphiox'us). 
Division B. Crania'ta. 
