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GLOSSARY OF SCIENTIFIC NAMES. 



Testacea (L. testa, a shell). Molluscs 

 with a shelly covering, as the Oyster, 

 Whelk, &c. 



Univalve (L. unus, one; valvce, doors). 



A shell composed of one calcareous 



piece, as the Periwinkle. 

 TTmhones. The base of a shell about the 



hinge. 



Viviparous (L. vivus, alive; pario, I 

 bring forth). The animals which bring 

 forth their young alive. See Oviparous. 



Whorl. The spiral turn of a shell. 



Zoology (Gr. zoon, animal; logos, a dis- 

 course). That branch of science that 

 treats of the habits, structure, and 

 classification of animals. 



Zoologist. One who is acquainted with 

 the science of Zoology. 



Zoophyte (Gr. zoon, an animal ; phyton, 

 a plant). The lowest primary division 

 of the animal kingdom, which includes 

 many animals that are fixed to the 

 ground and have the form of plants. 



