File:EB1911 - Acanthocephala 3.png

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English: An optical section through a male Neorhynchus clavaeceps , Zed. (from Hamann). Note: Neorhynchus is currently a synonym of Neoechinorhynchus[1]
a, Proboscis.
b, Proboscis sheath.
c, Retractor of the proboscis.
d, Cerebral ganglion.
f, f, Retractors of the proboscis sheath.
g, g, Lemnisci, each with two giant nuclei.
h, Space in sub-cuticular layer of the skin.
l, Ligament.
m, m, Testes.
o, Glands on vas deferens.
p, Giant nucleus in skin.
q, Opening of vas deferens.
From Cambridge Natural History, vol. ii., “Worms, &c.,” by permission of Macmillan & Co., Ltd.
Date
Source Encyclopædia Britannica Eleventh Edition, Vol. 1, Page 110
Author O. Hamann
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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