. Elementary text-book of zoology [electronic resource]. Zoology. 224 ANNUL AT A. differing essentially from those of the lobster. The mouth lies on the ventral surface of the head, and is surrounded by 2. lab rum or upper lip anteriorly, which is a flat plate formed of the head shield, produced downwards, and is in no way related to an appendage. Posteriorly, the mouth is bounded by a labiiwi or lower lip, formed by the fusion Fig. 147.—The Mouth Appendages of the Common Cockroach x 9. {Ad. nat.) The mandibles are above the first maxillae in the middle and the labium (2nd maxillae)
. Elementary text-book of zoology [electronic resource]. Zoology. 224 ANNUL AT A. differing essentially from those of the lobster. The mouth lies on the ventral surface of the head, and is surrounded by 2. lab rum or upper lip anteriorly, which is a flat plate formed of the head shield, produced downwards, and is in no way related to an appendage. Posteriorly, the mouth is bounded by a labiiwi or lower lip, formed by the fusion Fig. 147.—The Mouth Appendages of the Common Cockroach x 9. {Ad. nat.) The mandibles are above the first maxillae in the middle and the labium (2nd maxillae) below. across the middle line of a pair of appendages, the second maxi/IcE. Between labrum and labium, and lateral to the mouth, lie a pair of mandibles, hard-toothed crushing organs, with no palp, and a pair of first 7naxiUcE. The first maxillas, when dissected out, show a two-jointed basal portion (proto- podite) which bears a double endopodite, the inner part of. 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 Masterman, Arthur Thomas; Parsons, John Herbert, Sir, 1868-1957, donor; S. H. Lazarus (Firm); University College, London. Library Services. Edinburgh : E. & S. Livingstone
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectzoology, bookyear1901
