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Pachygrapsus marmoratus, a semiterrestrial crab
Hunting stance of Dolomedes minor, a semiaquatic spider

In biology, semiaquatic can refer to various types of animals that spend part of their time in water, or plants that naturally grow partially submerged in water. Examples are given below.

Semiaquatic animals[edit]

Semiaquatic animals include:

The white Egyptian lotus, a semiaquatic angiosperm

Semiaquatic plants[edit]

Semiaquatic plants include:


  1. ^ At least one individual of a normally fully terrestrial praying mantis species, Hierodula tenuidentata, has learned to opportunistically prey on fish.[1]
  2. ^ Technically, most land crabs fall into this category, since most must return to bodies of water to release their eggs; the few exceptions, such as members of genus Geosesarma,[2] are found among the Grapsidae (sensu lato) and Potamoidea (sensu lato).[3]


  1. ^ Battiston, R.; Puttaswamaiah, R.; Manjunath, N. (2018). "The fishing mantid: predation on fish as a new adaptive strategy for praying mantids (Insecta: Mantodea)". Journal of Orthoptera Research. 27 (2): 155–158. doi:10.3897/jor.27.28067.
  2. ^ Tan, C.G.S.; Ng, P.K.L. (1995). "Geosesarma notophorum sp. nov. (Decapoda, Brachyura, Grapsidae, Sesarminae), a Terrestrial Crab from Sumatra, with Novel Brooding Behaviour". Crustaceana. 68 (3): 390–395. doi:10.1163/156854095X00557.
  3. ^ Burggren, W.W.; McMahon, B.R., eds. (1988). Biology of the Land Crabs. Cambridge University Press. pp. 53–54. ISBN 978-0521306904.
  4. ^ Newman, L.J.; Cannon, L.R.G. (1997-06-30). "A new semi-terrestrial acotylean flatworm, Myoramyxa pardalota gen. et sp. nov. (Plehniidae Polycladida) from southeast Queensland, Australia". Memoirs of the Queensland Museum. 42 (1): 311–314. Retrieved 2018-08-14.