SUBFILO B. CHELICERATA
Classe 3. Arachnida (aracnídeos)

An OBT tarantula is crawling out of her web.
©iStockphoto.com/CathyKeifer

SUBFILO C. MANDIBULATA (antennata)
Classe 4. Diplopoda (diplópodes)
 

Cylinroiulus Caeruleocinctus
http://pt.wikipedia.org/wiki/Dipl%C3%B3pode