up. this change in water availability is reflected in the apple snails respiration system: a combination of both a gill and a lung . the arise of the lung in apple snail can be explained by the following conditions: low oxygen levels: the oxygen (o ) levels in tropical pools can become very low due to...
: the white to slightly pinkish eggs are laid on emerging stems of vegetation. the clutches of to eggs, are losely packed together. compared with mmany other pomacea species, the eggs of pomacea paludosa are relatively big, about to mm diameter. the young snails appear after or more weeks and drop into...
marisa cornuarietis ). shell-growth problem due to damaged mantle edge ( pomacea diffusa ). the heart of pomacea canaliculata in action. marisa cornuarietis is not selective when it comes to a mating partner and mounts other species as well (in this case a pomacea flagellata snail). sex differences in...
square shoulders (flat at the top of the whorls) and almost ° sutures. the shell opening (aperture) is large and oval, the umbilicus is large and deep. the size of the shell varies from - mm wide and - mm high. the spire is high and sharp, hance the often used name: spike-topped apple snail. the colour...
. when an irritant, such as a grain of sand, intrudes into the shell of the mussel and the mantle, or the interior of the mantle, the mussel coats the irritant with layers of the same substance that is used to create the shell. mother-of-pearl (nacre) which is mainly calcium carbonate and an organic...
the water. the eggs come out of the snail's body, one by one in a long string that folds up in such way that the eggs are attached to each other in one clutch. at this stage the eggs are small and have a white, translucent appearance. marisa cornuarietis depositing the eggs. day the eggs slowly enlarge...
part of the normal behaviour ( pomacea canaliculata ). breathing marisa cornuarietis . note the short siphon in this species. marisa cornuarietis with the penis sheath extended after mating. an years old pomacea diffusa with eroded shell . crawling pomacea diffusa . except where otherwise noted, this...
go for a fully matured and big nails- the african giant snail are recommended. you can get these snails from the market through out the country, or the from snail farmers. you need to prepare a space for the snail to live. a small piece of land behind your house would be enough. you can even use your...
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