356 



Descriptive Zoology. 

 BRANCH VII. MOLLUSCOI'DA. 



Class I. Polyzo'a sea mats. 



Class II. BrachiSp'oda lamp shells. 



BRANCH VIII. 



Asteroi'dea starfish. 

 Ophiuroi'dea brittle stars. 



Class I. 



Class II. 



Class III. Echinoi'dea sea urchins. 



Class IV. Holothuroi'dea sea cucumbers. 



Class V. Crinoi'dea sea lilies. 



BRANCH IX. ANNULA'TA. 



Class I. Chsetop'oda (ke-top'-o-da) earthworm. 

 Class II. Gephyre'a (jef-e-re'-a). 

 Class III. Hn-udin'ea leech. 



Class I. 



Class II. 



Class III. 

 Order 

 Order 

 Order 

 Order 

 Order 

 Order 

 Order 

 Order 

 Order 



Class IV. 



BRANCH X. ARTHROP'ODA. 



Crusta'cea crayfish, crab, barnacle, cyclops. 



Myrlap'oda centiped, milliped. 



Insec'ta grasshopper, dragon fly, water bug, butterfly. 



Thysanu'ra small, wingless insects. 



Orthop'tera grasshopper, cricket, cockroach. 



III. Odona'ta dragon fly, damsel fly. 



IV. Hemfp'tera water bug, squash bug, cicada. 

 Neurop'tera ant-lion. 



Lepidop'tera butterfly, moth. 

 DTp'tera housefly, horse fly, flesh fly, mosquito. 

 Coleop'tera May beetle, potato beetle, tiger beetle. 

 Hymenop'tera bee, wasp, ant, gallfly, ichneumon fly. 



V 



VI 



VII 



VIII 



IX 



Arach'nTda spiders, ticks, mites, daddy longlegs. 



BRANCH XL MOLLUS'CA. 



Class I. Pelecyp'oda clam, oyster, scallop, mussel. 



Class II. Amphineu'ra chl'ton (ki'-ton). 



Class III. Gastrop'oda snails, fresh-water and marine. 



Class IV. Cephalop'oda squid, cuttlefish, oc'topus, nau'tilus. 



