The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . TRACI1E^\RI^. 471. or rouniled, and generally soft: in some males, ft is narrowed behind into a cylindrical tail. Thenumber of eyes is either two or fonr, and even six, according to Miiller. , Latr., has thp cht*licer;p terniinftteii l)y a moveable claw. A, e^leiidautt Fabr. Ili/ilracliiia, Lntr., has the mouth composed of plates, forniiiiir a projeciini;sucker, ami tlie palpi have a moveable appendage beneath the ^voijniphicHii, Fabr., A. glohal


The animal kingdom : arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy . TRACI1E^\RI^. 471. or rouniled, and generally soft: in some males, ft is narrowed behind into a cylindrical tail. Thenumber of eyes is either two or fonr, and even six, according to Miiller. , Latr., has thp cht*licer;p terniinftteii l)y a moveable claw. A, e^leiidautt Fabr. Ili/ilracliiia, Lntr., has the mouth composed of plates, forniiiiir a projeciini;sucker, ami tlie palpi have a moveable appendage beneath the ^voijniphicHii, Fabr., A. glohalor, Fabr. Limnockares, , has the mouth sucker-shaped, but the palpi arc aquatiais, Linn. [Other species of these water-mites have been describedby M. Tlieis, in the Annaks del Sci. An/, for 18,12]. [From the very valuable discoveries lately made by M. Dus^s, it appearsthat these water-mites undergo metamorphoses, accompanied by a completechange of form, the larva; having a very large head and six legs, whilst thepupw are inactive, attaching themselves, by a single pair of legs, to tin?^^ stli~° « ?i hedies of other aquatic


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Keywords: ., bookauthorwe, bookcentury1800, bookdecade1840, booksubjectanimals