. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. Spiders. 358 AMERICAN SPIDERS AND THEIR SPINNINGWORK. characteristic of Uloborus, Hyptiotcs, and Dictyna are secreted by what he calls the Cribcllum gland. The Lobate glands prepare the threads by which the insect is swathed previous to being eaten. Possibly, however, several glands take part in furnishing the swathing bands. The Pyriform glands secrete the spinningwork which forms the snare proper, or the seizing tissue, together with
. American spiders and their spinning work. A natural history of the orbweaving spiders of the United States, with special regard to their industry and habits. Spiders. 358 AMERICAN SPIDERS AND THEIR SPINNINGWORK. characteristic of Uloborus, Hyptiotcs, and Dictyna are secreted by what he calls the Cribcllum gland. The Lobate glands prepare the threads by which the insect is swathed previous to being eaten. Possibly, however, several glands take part in furnishing the swathing bands. The Pyriform glands secrete the spinningwork which forms the snare proper, or the seizing tissue, together with the dragline and traplinc. I would venture to add to this the suggestion that the same glands must also secrete the fila- ments which form the ballooning thread and floating strands known as gossamer. The function of the Aciniform glands and Ampullatc glands, according to Dr. Apstein, is not known. (See Figs. 348-354.). 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 McCook, Henry C. (Henry Christopher), 1837-1911. [Philadelphia] The Author, Academy of Natural Science of Philadelphia
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectspiders, bookyear1889
