. The animans and man; an elementary textbook of zoology and human physiology. FIG. 80. A crab-spi-der (Thomisid). (Slightly enlarged; regular webs made after Jenkins and fence-COmers n FIG. 81. A jumpingspider ( At t id ).(Slightly enlarged;after Jenkins and Kellogg.) and on plants; andfinally orb-weavers (Epeiridas) (fig. 82), the host of variouslycolored and patterned stout-bodied garden-spiders whichspin the beautiful symmetrical circular webs familiar to a complete uninjured orb web be examined it will befound to consist of a small central hub either open or closed, ARTHROPODS AND
. The animans and man; an elementary textbook of zoology and human physiology. FIG. 80. A crab-spi-der (Thomisid). (Slightly enlarged; regular webs made after Jenkins and fence-COmers n FIG. 81. A jumpingspider ( At t id ).(Slightly enlarged;after Jenkins and Kellogg.) and on plants; andfinally orb-weavers (Epeiridas) (fig. 82), the host of variouslycolored and patterned stout-bodied garden-spiders whichspin the beautiful symmetrical circular webs familiar to a complete uninjured orb web be examined it will befound to consist of a small central hub either open or closed, ARTHROPODS AND MOLLUSCS 169 from which run radii to the outer edges of the web. Aroundthe hub is an open or free zone, and farther out a spiral zone,so called because a line running in close spiral turns fills inthe space between the radii. This is the real prey-catchingpart of the snare, and the silken line here is sticky, while theradii and some other parts of the web are made of silk thatis not sticky. The web is supported by strong foundation-lines, attached toleaves, stems, or what-e
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Keywords: ., bookcentury1900, bookd, booksubjectphysiology, booksubjectzoology
