. The crayfish : an introduction to the study of zoology . Crayfish. THE MANDIBLES AND MAXILLA. 171 ridge is continued into a process by which the mandible articulates with the epistoma (fig. 47, A, ar). The endo-. FlG. il.—AstacusfimiatUis —A, mandible ; B, first maxilla ; C, second maxilla of the left side (x 3). ar, internal, and ar', external articular process of the mandible ; ij?, basipodite ; cxjj, ooxopodite ; en, endopodite ; p, palp of the mandible; Sff, soaphognathite ; x, internal process of the first maxilla. podite is represented by the three-jointed ^a?p {p), the terminal joint

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. The crayfish : an introduction to the study of zoology . Crayfish. THE MANDIBLES AND MAXILLA. 171 ridge is continued into a process by which the mandible articulates with the epistoma (fig. 47, A, ar). The endo-. FlG. il.—AstacusfimiatUis —A, mandible ; B, first maxilla ; C, second maxilla of the left side (x 3). ar, internal, and ar', external articular process of the mandible ; ij?, basipodite ; cxjj, ooxopodite ; en, endopodite ; p, palp of the mandible; Sff, soaphognathite ; x, internal process of the first maxilla. podite is represented by the three-jointed ^a?p {p), the terminal joint of which is oval and beset with numerous strong setae, which are especially abundant along its anterior Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Huxley, Thomas Henry, 1825-1895. London : Kegan Paul, Trench, Tru?bner & Co.

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Keywords: ., bookauthorhuxleyth, bookcentury1900, bookdecade1900, bookyear1906