Archive image from page 457 of Cuvier's animal kingdom arranged. Cuvier's animal kingdom : arranged according to its organization cuviersanimalkin00cuvi Year: 1840 Tffull al m Argului, Mull., at first named by me Ozolus, but not sufficiently described. The younger Jurine subsequently examined the species which is the type of the genus, with the most scrupulous attention, observing it in all its stages. The shield is oval, notched posteriorly, covering the body, with the exception of the posterior extremity of the abdomen, and supporting, on a triangular frontal space termed the clypeus, two
Archive image from page 457 of Cuvier's animal kingdom arranged. Cuvier's animal kingdom : arranged according to its organization cuviersanimalkin00cuvi Year: 1840 Tffull al m Argului, Mull., at first named by me Ozolus, but not sufficiently described. The younger Jurine subsequently examined the species which is the type of the genus, with the most scrupulous attention, observing it in all its stages. The shield is oval, notched posteriorly, covering the body, with the exception of the posterior extremity of the abdomen, and supporting, on a triangular frontal space termed the clypeus, two eyes, four very minute antennae, nearly cylindrical, placed in frontâof which the superior, very short and 3-jointed, have, at the base, a strong, toothless, recuned hook, and of which the inferior are 4-jointed, with a small tooth upon the basal joint. The siphon is directed forwards. The legs are twelve in number. The two anterior are terminated by a large limb, circularly dilated at the tip, and striated and toothed at the edge ; exhibiting, on the inside, a kind of rosette, formed by the muscles, and seeming to act as a sucking-cup. Those of the second pair 1, are fitted for prehension, with the thighs thick and spinose, and the tarsi composed of njr. three joints, the last of which is tenninated by two hooks. The other feet are termi- 'enUii' 'P'''' ' ' '''''â »' nated by a swimmeret formed of two fingers, or elongated pinnulse, fringed with bearded threads. The third pair of legs has an extra finger, but which is recurved. The last pair of legs is attached to that part of the body which is disengaged behind the shield, or the tail. The abdomenâ regarding it as the part of the body extending backwards between the ambulatory feet, the beak, and a tubercle inclosing the heartâis entirely free from the place of its insertion, without distinct articulations, and terminates immediately behind the two last feet in a kind of tail, in the shape of a rounded, deeply-notched
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