Other Invertebrates
Invertebrate species make up most of Costa Rica’s wildlife. Of the estimated 505,000 species, about 493,000 are invertebrates (including spiders and crabs). It is known that there are tens of thousands of insects and microscopic invertebrates in every land type and elevation level. However, they are largely unnoticed or unidentified.
There are known 183 species and subspecies of terrestrial gastropods from Costa Rica and numerous freshwater gastropods and bivalves.
Read more about this topic: Fauna Of Costa Rica