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FromThe Crayfish, by T. H. Huxley, 1879

Figure 61

fig. 61, Astacina

FIG. 61.--A, D, & G, Astacus torrentium; B, E, & H, A. nobilis; C, F, & I, A. nigrescens (nat. size). A-C, Dorsal views of carapace; D-F, side views of third abdominal somites; G-I, Dorsal views of telson. a, b, post-orbital ridge and spines; c, banchio-cardiac grooves inclosing the areola.

[Editor's note: illustration is reproduced here approximately twice the size of the woodcut in the book.]

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