. Cuvier's animal kingdom : arranged according to its organization. Animals. PULMONARIA. 405 THE SECOND FAMILY OF THE PULMONAKY ARACHNIDA,— The Pedipalpi,— Possesses very large palpi in the shape of extended arms, terminated by a pincer or claw. The chclicera;, or external pincers, have two fingers, one of which is moveable. The abdomen is coni])osed of very distinct segments, without spinnerets at the tip ; and the sexual organs are placed at the base of the belly. The entire body is clothed in a hard skin. The thorax is composed of a single piece, and exhibits, near each of its anterior angl
. Cuvier's animal kingdom : arranged according to its organization. Animals. PULMONARIA. 405 THE SECOND FAMILY OF THE PULMONAKY ARACHNIDA,— The Pedipalpi,— Possesses very large palpi in the shape of extended arms, terminated by a pincer or claw. The chclicera;, or external pincers, have two fingers, one of which is moveable. The abdomen is coni])osed of very distinct segments, without spinnerets at the tip ; and the sexual organs are placed at the base of the belly. The entire body is clothed in a hard skin. The thorax is composed of a single piece, and exhibits, near each of its anterior angles, three or two eyelets, approximating or grouped together ; and near the middle of its anterior extremity, or poste- riorly, but in the medial line, two other eyelets, also close together. The number of pulmo- nary sacs is four or eight. Some (which form the genus Tarantula*, Fabr.) have the abdomen attached to the thorax by a peduncle, or by a portion of the transverse diameter, without comb-hke plates at its base beneath, or a sting at its extremity. The spiracles, four in number, are situated near the base of the belly, and covered by a plate. The chelicerae (mandibles of authors) are clawed, or merely terminated by a move- able hook. The tongue is elongated, very narrow, and hidden. They have only a pair of maxillae, formed of the basal part of the palpi. All of these have eight eyes, of which three, on each side, near the anterior angles, are arranged in a triangle ; and two near the middle, upon the front margin, placed upon a common tubercle, or upon a small eminence, one on each side. The palpi are spinose. The tarsi of the two fore-legs differ from the others: they are composed of many joints, and resemble threads, without a terminal hook. These Arachnida inhabit only the hottest parts of Asia and America. We are unacquainted with their habits. They now constitute two genera. Phrynus, Oliv., has the palpi terminated by a spined hook ; the body very flat ; the tho
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Keywords: ., bookcentury1800, bookdecade1840, bookpublishe, booksubjectanimals
