. Elements of zoölogy. Zoology. no CRABS AND INSECTS. air, hardens and forms a silken thread (Fig. 131, s) that is seemingly Fig. 131.—Parts of a spider. 1, Under part of a spider's body : t, thorax, or chest, from which the eight legs spring, and to which the head is united in one piece; f, fangs ; p, palpi, or feelers, attached to the jaws; «, ab- domen ; fr, breathing-slits; s, six spinnerets with thread coming from them. 2, Front of spider's head : £, eyes; fl, palpi; /, front legs; h, hasp of fangs ; _/, poison-fangs ; j, outer jaws. A Note.—Professor Wilder wound several
. Elements of zoölogy. Zoology. no CRABS AND INSECTS. air, hardens and forms a silken thread (Fig. 131, s) that is seemingly Fig. 131.—Parts of a spider. 1, Under part of a spider's body : t, thorax, or chest, from which the eight legs spring, and to which the head is united in one piece; f, fangs ; p, palpi, or feelers, attached to the jaws; «, ab- domen ; fr, breathing-slits; s, six spinnerets with thread coming from them. 2, Front of spider's head : £, eyes; fl, palpi; /, front legs; h, hasp of fangs ; _/, poison-fangs ; j, outer jaws. A Note.—Professor Wilder wound several miles of silk from the Southern Nephila plwnipes, the largest spider in the United States (Fig. 130). In the Pacific C islands an Epeira spins a web strong enough to catch birds. Professor Moseley found a finch entangled in one of their webs. Some spiders spin a web that bears them away through the air like a balloon. The Dolomedes builds a raft of leaves and silk, and launches it in search of food. Many mimic their surroundings, while others communicate so rapid a movement to their webs as to become invisible. The Salticus leaps through the air after Fig. 132.—Spiders' nests of different kinds, containing eggs. A and C are common nests in sheds and barns ; B was found under a board in the field—the part containing the eggs stands upon a stalk. (After Morse).. 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 Holder, Charles Frederick, 1851-1915; Holder, Joseph Bassett, 1824-1888, joint author. New York : D. Appleton and company
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectzoology, bookyear1884
