Animal Index - Invertebrates

 

Of the million or more animal species in the world, more than 98% are invertebrates. Invertebrates don't have an internal skeleton made of bone. Many invertebrates have a fluid-filled, hydrostatic skeleton, like the jelly fish or worm. Others have a hard outer shell, like insects and crustaceans. There are many types of invertebrates. The most common invertebrates include the protozoa, annelids, echinoderms, mollusks and arthropods. Arthropods include insects, crustaceans and arachnids.

Click on the picture or name of the animals below for more information.

 

About Animals:

Index of Animals

Vertebrate Animals

Web Links


Science Main Index

 
Protozoa
Earthworms
clams and mussels
starfish
   
Protozoa Annelids Mollusks Echinoderms
 
 
crabs
spider
dragonfly
   
Crustaceans Arachnids Insects
 

Web Links about Invertebrates:

Ask the Curator of Harvard's Museum of Comparative Zoology, Department of Invertebrate Zoology, your question.

Find information about the Invertebrates at the Waikiki Aquarium

   

 

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