Published online by Cambridge University Press: 13 April 2023
Only four terrestrial invertebrate phyla dealt with in this chapter appear in the IUCN Red List of Threatened Species. Three of these phyla are composed of mostly marine animals, but all the listed species of Nemertea and Platyhelminthes are limnoterrestrial, and of the 224 listed annelids, 222 are limnoterrestrial. Conservation issues related to their marine counterparts are discussed in other chapters of this book.
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