. The animal kingdom, arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy. Zoology. THE FIRST FAMILY OF THE TRACHEAN ARACHNIDA,— The Psetjdo-Scorpiones,— Has the thorax articulated, with the anterior segment largest, like a corselet; the abdomen very distinct, and annulated; the palpi very large, in the shape of feet or claws ; eight legs in both sexes, with two equal-sized ungues at the tip of the tarsi,—the two anterior, at the most, excepted; two apparent chelicerse, terminated by two fingers; and two maxillae, formed of the basa
. The animal kingdom, arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy. Zoology. THE FIRST FAMILY OF THE TRACHEAN ARACHNIDA,— The Psetjdo-Scorpiones,— Has the thorax articulated, with the anterior segment largest, like a corselet; the abdomen very distinct, and annulated; the palpi very large, in the shape of feet or claws ; eight legs in both sexes, with two equal-sized ungues at the tip of the tarsi,—the two anterior, at the most, excepted; two apparent chelicerse, terminated by two fingers; and two maxillae, formed of the basal joint of the palpi. All of these are terrestrial, and have the body oval or oblong. This family comprises only two genera. Galeodes, Oliv. (Solpuga, Lichteijstein, Fabr.), having- two very large chelicerae, with vertical, strongly-toothed fingers, one superior, fixed, and often furnished with a slender, elongated, pointed appendage* at its base, and the other moveable ; the palpi are large, projecting, and in the shape of feet or antenna1, terminated by a short, vesicular joint, without any terminal hook; the two fore-legs have a similar shape, and are equally unarmed, but smaller; the others are terminated by a tarsus, the last joint of which has two small cushions, and two long fingers, with a hook at their tips; five scales are attached by a peduncle upon each hind leg, disposed in a row upon the basal joints; two eyes are placed close together upon an eminence in front of the anterior thoracic segment, which represents a large head, supporting the mouth and two fore-legs. The body is oblong, generally soft, and clothed with long bristles; the knob at the tip of the palpi incloses a peculiar organ, which is only protruded when the animal is irritated ; the two fore-legs may be considered as a second pair of palpi. I have discovered a large spiracle on each side of the body, between the first and second legs, as well as a slit at the base of the belly. The abdomen is
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectzoology, bookyear1854
