channeled'). the shell opening (aperture) is large and oval to round. males are known to have a rounder aperture than females. the umbilicus is large and deep. the overal shell shape is similar to that of pomacea lineata, except the deeper sutures and more globose shape in canaliculata. the size of these snails...
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(and snails in general) has two functions: transport of o , co , hormones, nutrition and waste products and a structural function: a hydroskeleton. the transport capacity of the blood for o and co is enhanced by the chemical substance hemocyanine in the blood cells. hemocyanine fulfils the same function...
( pomacea paludosa ) are quite common in these pads. marsh scenic. the snail kite (rostrhamus sociabilis) is major predator on apple snails in south florida and central and south america. another photograph of this beautiful bird. sadly enough, the destruction of the habitat causes a drop in the apple...