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.
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