USED IN NATURAL HISTORY. 



161 



Div. IV. RADIATA. 



Radiates: wheel-shaped animals. 



Class. Order. 



I. ECHIHODERMA. ( 1. Pedicellata. 



Bristle-skinned : echinoderms. ) 2. Apoda. 



II. INTEST-IITA. 



Intestinal worms. 



III. ACALEPHA. 



Sea-nettles: acalephs. 



IV. POITPI. 



Plant-like animals : polyps. 



V. INFUSORIA. 



( 1. Cavitaria. 

 ( 2. Parenchyma. 



( 1. Simplex. 



( 2. Hydrostatica. 



1. Carnosa. v 



2. Gelatinosa. 



3. Corallicola. 



1. Rotifera. 



2. Homogenea. 



Example. 

 Star-fish. 

 Sipunculus. 



Guinea- worm. 

 Tape-worm. 



Medusa. 

 Portuguese man 

 of war. 



Lea-anemone. 



Vorticella. 



Coral. 



Wheel-insect. 

 Globe-animalcule. 



ZOOMO'RPHOUS. fr. gr. zdon, an ani- 

 mal ; morphe, form. Bearing some 

 resemblance to the form of an 

 animal. 



ZOOXO'MIA. fr. gr. zoon, an animal ; 

 nomos, a law. Animal physiology. 



ZOO'NOMY. fr. gr. zoon, an animal ; j 

 nomos, a law. The science which ! 

 treats of the laws of organic life. 



Z^O'PHAGOUS. fr. gr. zoon, an ani- j 

 mal ; phago, to eat. Animal-eat- 

 ing ; applied to a division of ce- 

 taceous animals, and to a tribe of 

 carnivorous gasteropods. I 



ZO'OPHTTB. fr.gr. zoon, an animal; 

 phuton, plant. A plant-animal, 

 which seemingly partakes of the 

 properties of both plants and ani- 

 mals. 



ZOSTE'RA. fr. gr. zoster, a riband. 

 Sea-wrack grass. A genus of 

 plants of the family of fluviales. 



ZOO'TOMY. fr. gr. zoon, an animal ; 

 temno, to cut. Comparative ana- 

 tomy. 



ZTOODA'CTTLJE. fr. gr. zugos, a bal- 

 ance ; daktulos, a toe. Systematic 

 name of the order of climbers. 



THE END. 



