Pyc*nog"o*nid(?), n. (Zol.) One of the Pycnogonida.
Pyc`no*gon"i*da(?), n. pl. [NL., fr. Gr. thick crowded + knee.] (Zol.) A class of marine arthropods in which the body is small and thin, and the eight legs usually very long; -- called also Pantopoda.
The abdomen is rudimentary, and the triangular mouth is at the end of a tubular proboscis. Many of them live at great depths in the sea, and the largest of them measure two feet across the extended legs.
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Sun 16th December 2018