The natural history of British insects : explaining them in their several states, with the periods of their transformations, their food, oeconomy, &c together with the history of such minute insects as require investigation by the microscope : the whole illustrated by coloured figures, designed and executed from living specimens . C ^-i ] PLATE VIIL VORTICELLA LUNARIS. GENERIC CHARACTER. A worm capable of contrafting or extending itfelf, naked, withrotatory cilia* SPECIFIC CHARACTER,Simple, hemifpherical, with a twifled pedicle, ^^ ujim-f jlfr«tfm MjiM. The fnaall head of this animalculum is c
The natural history of British insects : explaining them in their several states, with the periods of their transformations, their food, oeconomy, &c together with the history of such minute insects as require investigation by the microscope : the whole illustrated by coloured figures, designed and executed from living specimens . C ^-i ] PLATE VIIL VORTICELLA LUNARIS. GENERIC CHARACTER. A worm capable of contrafting or extending itfelf, naked, withrotatory cilia* SPECIFIC CHARACTER,Simple, hemifpherical, with a twifled pedicle, ^^ ujim-f jlfr«tfm MjiM. The fnaall head of this animalculum is crater-form, the margin* of the orifice protuberant, ciliated on both fides, the hairs undula-* ting, the pedicle eight or ten times the length of the body. As often as the mouth is opened, the pedicle extends itfelf; when it is fhut, this is twifted up fpirally, and their motions are often reite-* rated in a fhort fpace. Fig. I. the head, expanded. Fig. 2. when ~—Fig. 3. the undulated edge. Adamses Ejfays on the Mkrofcope, Fig. 4. found in infufions of hay; and is called Trichoda Uvula. D2 PLATE [ ^^ ] PLATE P H A L ^ N A E V O N Y M E L L A. Small Ee-mine GENERIC CHARACTER, ? Antennas taper like briftles. SPECIFIC CHARACTER. Firft wings filver-white, with fifty fmall black fpots in
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Keywords: ., bookauthordonovaneedward176818, booksubjectinsects, bookyear1792
