Lectures on the comparative anatomy and physiology of the invertebrate animals : delivered at the Royal College of Surgeons . din three or four coils. But inthe Orthopterous vegetable-feeding insects^, the canal ischaracterised by its superiorwidth rather than by its length ;and in them the complicationsrequisite for animalizing thefood are chiefly manifested bythe gastric division. The ceso-phagus dilates into a wide glandular crop in the cockroaches* andlocusts |, and has a similar receptacle appended to it in the mole-cricket.:|: The gizzard has a strong muscular coat and a callousepitheliu


Lectures on the comparative anatomy and physiology of the invertebrate animals : delivered at the Royal College of Surgeons . din three or four coils. But inthe Orthopterous vegetable-feeding insects^, the canal ischaracterised by its superiorwidth rather than by its length ;and in them the complicationsrequisite for animalizing thefood are chiefly manifested bythe gastric division. The ceso-phagus dilates into a wide glandular crop in the cockroaches* andlocusts |, and has a similar receptacle appended to it in the mole-cricket.:|: The gizzard has a strong muscular coat and a callousepithelium, the inner surface of which is beset with projecting teethor hooks, as in the cockroach, or with scale-like plates, as in thecricket, generally disposed in longitudinal rows. The tunics of thechylific stomach are produced at its commencement into csecal ap-pendages, which augment and complicate its cavity. There are twosuch caica in the common and mole-crickets, four in Locusta ser-rata, six in the migratory locust, and eight in the cockroach. In thecoleopterous Buprestidce the stomach is prolonged into two ctecal ap-. Cicendela campestris. * Preps. Nos. 607, 608, 609. t Nos. 443. 610. X No. 611.


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Keywords: ., bookauthorowenrichard18041892, bookcentury1800, bookdecade1850