FIG. 44.--Astacus fluviatilis.--The third or external maxillipede of the left side ( x 3). e, lamina, and br, branchial filaments of the podobranchia; cxp, coxopodite; cxs, coxopoditic setae; bp, basipodite; ex, exopodite; ip, ischiopodite; mpmeropodite; cp, carpopodite; pp, propodite; dp, dactylopodite.
[Editor's note: illustration is reproduced here approximately twice the size of the woodcut in the book.]
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