Chilaria

Chilaria

Chilaria (singular "chilarium") is a pair of reduced appendages located just posterior and medial to the last walking legs in Xiphosura (horseshoe crabs). The words originates from Greek and means "small lips".

Their function is unknown, and there is some controversy about their evolutionary significance (some specialists believe that they may reflect an additional opisthosomal segment).

References

Brusca, R. & Brusca, G., 2002. Invertebrates. Sinauer Associates, Inc. MA. 936pp.


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Look at other dictionaries:

  • chilaria — n. pl.; sing. chilarium [Gr. cheilos, lip] (ARTHROPODA: Chelicerata) In Merostomata, small rudimentary appendages on the reduced 7th (pregenital) metamere of king crabs …   Dictionary of invertebrate zoology

  • Xiphosura — Temporal range: Silurian–Recent …   Wikipedia

  • horseshoe crab — a large marine arthropod, Limulus polyphemus, of shallow coastal waters of eastern North America and eastern Asia, having both compound and simple eyes, book gills, a stiff tail, and a brown carapace curved like a horseshoe: a living fossil… …   Universalium

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