364 



GLOSSARY. 



a complete bony skeleton ; true or 

 typical fishes. 



Tere'do ("borer"), one of the so-called 

 ship-worms or wood-worms. The 

 teredo is a mollusk that bores holes 

 in wooden ships, and in piles and 

 other timbers placed in the sea- 

 water. 



Ter'mites (pi.) ("wood-worms"), a 

 group or family of insects known 

 as white ants ; but they are not 

 true ants. Their destructive rav- 

 ages are noticed in the body of this 

 work. 



Thysanu'ra (pi.) ("tassel-tails"), a 

 group of low insect-like forms, gen- 

 erally considered as insects of a low 

 type. The so-called "silver-fish," 

 common in kitchens and closets, is 

 a well-known example. 



Tin'amou, a South American bird of 

 several species, generally classed as 

 one of the Carinatee, and as related 

 to the domestic fowl. But it has 

 many of the structural features of 

 the ostrich-like birds, or Ratitae, 

 which it also resembles in its 

 habits. 



Traguli'na (pi.) ("goat-like"), a group 

 of small tropical artiodactyl mam- 

 mals resembling deer, but not very 

 closely related to them nor to any 



true ruminant, including the chev- 

 rotains, or deerlets. 



Tunica'ta (pi.) ("wearing a tunic"), 

 a class of molluscoids (by some 

 classed as vertebrates) which are 

 protected by a leather-like covering 

 instead of a shell. 



Tylop'oda (pi.) ("pad-footed"), a 

 group of artiodactyl mammals 

 having pads under the soles of the 

 feet ; the camel, llama, and alpaca 

 are examples. 



TJngula'ta (pi.) ("hoofed animals"), 

 an order or group of mammals 

 provided with hoofs or strong nails 

 on the toes, including the horse, 

 ox, deer, elephant, etc. 



Ver'mes (pi.) ("worms"), the name 

 given to the class of worms; but 

 the class is not a well-defined one, 

 and is to be regarded as made up 

 of several distinct groups. 



Vertebra'ta (pi.), the division of ani- 

 mals which have vertebrae and a 

 bony skeleton. 



Zool'ogy (" discourse on animals"), 

 the science of animals. 



Zo'ophyte (" plant-animal"), any ani- 

 mal that is fixed in its place by a 

 stem and in other respects re- 

 sembles a plant. The name is not 

 much used at present by zoologists. 



