telson

views updated May 08 2018

telson The spike-like, terminal segment of the opisthosoma that occurs in certain chelicerates (Chelicerata), e.g. limulids and eurypterids. The prominent, backward-pointing spine at or near the rear extremity of a trilobite (Trilobita) is also called a telson, although it may or may not be the equivalent of a true telson.

telson

views updated May 23 2018

telson In Arthropoda, the final abdominal segment, present only in the embryo of insects.

telson

views updated Jun 11 2018

telson (zool.) last segment of some crustaceans, etc. XIX. — Gr. tėlson limit.

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