A Plain and Easy Account of the Land and Freshwater Mollusks of Great Britain |
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Page 14
... cylindrical jelly - like body , termed the crystalline style , whose function is not known . The intestinal canal is a narrow tube wound around a large liver , and after passing through the heart , is continued along the back to the ...
... cylindrical jelly - like body , termed the crystalline style , whose function is not known . The intestinal canal is a narrow tube wound around a large liver , and after passing through the heart , is continued along the back to the ...
Page 40
... cylindrical , truncate , and changes but little ; sometimes , however , it is nearly elliptical ; it never extends beyond a sixth of the length of the shell . A current is seen passing out of it , and minute dark particles frequently ...
... cylindrical , truncate , and changes but little ; sometimes , however , it is nearly elliptical ; it never extends beyond a sixth of the length of the shell . A current is seen passing out of it , and minute dark particles frequently ...
Page 66
... cylindrical tentacles , and eyes are situated on the upper pair . The slugs resemble in many respects the snails , and are regarded by the vulgar as such , which have the peculiar power of leaving their shells during the summer and ...
... cylindrical tentacles , and eyes are situated on the upper pair . The slugs resemble in many respects the snails , and are regarded by the vulgar as such , which have the peculiar power of leaving their shells during the summer and ...
Page 89
... cylindrical than that of T. haliotidea . FAMILY ONCIDIADE . The above group is allied to the true slugs , and was founded to receive certain slug - like animals destitute of any shell , and completely covered by a leathery mantle . The ...
... cylindrical than that of T. haliotidea . FAMILY ONCIDIADE . The above group is allied to the true slugs , and was founded to receive certain slug - like animals destitute of any shell , and completely covered by a leathery mantle . The ...
Page 92
... cylindrical tentacles ; the tentacles of the upper pair are the longest , and bear the eyes at their summits . The snail and slug have both the power of drawing in their horns on being touched . We shall now proceed to explain " how ...
... cylindrical tentacles ; the tentacles of the upper pair are the longest , and bear the eyes at their summits . The snail and slug have both the power of drawing in their horns on being touched . We shall now proceed to explain " how ...
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A Plain and Easy Account of the Land and Fresh-Water Mollusks of Great ... Ralph Tate No preview available - 2015 |
Common terms and phrases
abundant Ancylus animal aperture Arion aspersa bands bivalves body Britain British species brown Bulimus central tooth Clausilia cloth Coil Shell colour columella convex Copford Cyclas cylindrical damp decaying dental formula deposits diameter distinguished distributed ditches eggs elongated England Eocene epidermis epiphragm Fcap foot fossilized frequently fresh-water gardens genus globular glossy grass Helicella Helicidae Helix horny Illustrated inch inhabits Ireland J. G. Jeffreys keel lakes Lankester last whorl length Limax lingual ribbon living mantle margin minute mollusk moss mouth mussel narrow nearly nemoralis North number of teeth oblique oblong occurs operculum outer lip oval ovoviviparous peristome places PLANORBIS Plate ponds Pupa rare resembles rivers rocks S. P. Woodward shell side slightly slugs snail specimens spiral spire stones striƦ striated surface suture tentacles Testacella thick thin transparent transverse rows trees umbilicus upper variety VERTIGO Vincent Brooks Vitrina woods wrinkled