File:1911 Britannica-Arachnida-Limulus polyphemus14.png

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1911_Britannica-Arachnida-Limulus_polyphemus14.png ‎(342 × 530 pixels, file size: 109 KB, MIME type: image/png)

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English: Ventral view of Limulus polyphemus.
1 to 6, The six prosomatic pairs of appendages.

abd, the solid opisthosomatic carapace.
tels, the post-anal spine (not the telson as the lettering would seem to imply, but only its post-anal portion).

operc, the fused first pair of mesosomatic appendages forming the genital operculum.
(From Parker and Harwell, Text book of Zoology, after Leuckart.)
Date
Source Encyclopædia Britannica Eleventh Edition, Vol. 2, Page 302
Author Encyclopædia Britannica, 1911

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Public domain This image comes from the 13th edition of the Encyclopædia Britannica or earlier. The copyrights for that book have expired in the United States because the book was first published in the US with the publication occurring before January 1, 1929. As such, this image is in the public domain in the United States.

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