Editing King crab (section)

== Description ==
[[File:Neolithodes agassizii eating.jpg|thumb|right|King crabs often feature prominent spines, which shrink as they mature.<ref name="Ahyong 2010" />]]
King crabs are a morphologically diverse group, distinctive among [[hermit crab]]s for their superficial similarity to [[true crab]]s.<ref name="Noever & Glenner 2017" /><ref name="Ahyong 2010">{{Cite book|last=Ahyong|first=Shane T.|author-link=Shane T. Ahyong|url=https://docs.niwa.co.nz/library/public/Memoir%20123_The%20Marine%20Fauna%20of%20New%20Zealand_King%20Crabs.pdf#page=6|title=The Marine Fauna of New Zealand: King Crabs of New Zealand, Australia, and the Ross Sea (Crustacea: Decapoda: Lithodidae)|publisher=[[National Institute of Water and Atmospheric Research]]|year=2010|isbn=978-0478232851|series=NIWA Biodiversity Memoirs|volume=123|pages=5–15|lccn=2010497356|archive-url=https://web.archive.org/web/20200215075140/https://docs.niwa.co.nz/library/public/Memoir%20123_The%20Marine%20Fauna%20of%20New%20Zealand_King%20Crabs.pdf|archive-date=15 February 2020|url-status=live}}</ref> They have five pairs of legs, called pereopods:{{efn|These legs are commonly labeled pereopod 1–5 starting from the anterior.<ref name="Ahyong 2010"/>}} the first – frontmost – set are [[cheliped]]s whose right side is generally noticeably more robust than the left; the second, third, and fourth are walking legs tipped with sharp [[dactylus|dactyli]]; and the fifth, used for cleaning, are very small and generally sit inside the branchial chamber.<ref name="Ahyong 2010"/> On their underside, they have a short [[Abdomen#Arthropoda|abdomen]] – composed of plates – which is asymmetrical in females.<ref name="Ahyong 2010" /> This abdomen (sometimes called a pleon)<ref name="Noever & Glenner 2017" /> is folded against the underside of the [[cephalothorax]] and is composed of six segments – called [[somite]]s or pleonites – and a [[telson]].<ref name="Ahyong 2010" />{{sfn|Poore|Ahyong|2023|pp=885–886}}{{efn|These segments are commonly labeled somite/pleonite 1–6 starting from the posterior.<ref name="Ahyong 2010"/>}} In Hapalogastrinae, this abdomen is soft, while it is hard and calcified in members of Lithodinae.<ref name="Noever & Glenner 2017" /> Lithodids lack any sort of [[uropod]] seen in some [[decapod]]s.<ref name="Ahyong 2010"/>