. Journal of morphology. :) FriuikfaTt ?^M Mi-mil f^ln>>>!l!fj^ 534 /• PERCY MOORE. EXPLANATION OF PLATE XXIX. Fig. 9. A reconstruction, from camera drawings, of a median plane projectionof the head, hy, hypodermis; og, oral glands; sg, salivary (?) gland ; ag, adhesivegland ; dj, dorsal, and vj, ventral jaw ; dfn, dorsal, and vm, ventral muscular pads;dpm, dorsal, and vpm, ventral protractor muscles ; drm (foremost index line)dorsal, and wrw, ventral retractor muscles; Im, longitudinal muscle fibres; rm,radial muscle fibres; cm, circular muscle fibres ;

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. Journal of morphology. :) FriuikfaTt ?^M Mi-mil f^ln>>>!l!fj^ 534 /• PERCY MOORE. EXPLANATION OF PLATE XXIX. Fig. 9. A reconstruction, from camera drawings, of a median plane projectionof the head, hy, hypodermis; og, oral glands; sg, salivary (?) gland ; ag, adhesivegland ; dj, dorsal, and vj, ventral jaw ; dfn, dorsal, and vm, ventral muscular pads;dpm, dorsal, and vpm, ventral protractor muscles ; drm (foremost index line)dorsal, and wrw, ventral retractor muscles; Im, longitudinal muscle fibres; rm,radial muscle fibres; cm, circular muscle fibres ; ep, pharyngeal epithelium; pc,cuticle of pharynx; sga, supraoesophageal ganglion ; nc, ventral nerve cord; g^,first post-cephalic ganglion; dv, dorsal bloodvessel; sv, supra-neural blood vessel. Fig. id. Transverse section of the head in the region of the jaws. Kleinen-bergs haematoxylin. X 195. Lettering as in Fig. 9. g, g, pharyngeal glands. Fig. IX. Transverse section through the middle region of the head of a largerindividual than 9 and 10. Klein, haem. X 195. Lettering as in Figs. 9 and 10.

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Keywords: ., bookcentury1800, bookdecade1, booksubjectphysiology, bookyear1887