GLOSSARY. 381 



Vertebra. (Lat. verto, I turn.) One of the bones of the spinal 

 column. 



Vesicle. (Lat. vesica, a bladder.) A little sac or bladder. 



Viscera. (Lat. viscus.) The internal organs of the body. 



Viviparous. (Lat. vivus, alive ; pario, I bring forth.) Applied to 

 animals which produce their young alive. 



Zcoid. (Gr. C^o". animal ; cZSos, form.) The separate organisms of 

 a compound animal, such as many of the Ccelenterata. 



Zoophyte. (Gr. &ov, animal ; Qvrov, plant.) Applied to the ani- 

 mals which resemble plants, such as the sea-anemones, sponges, etc- 



