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° angle) sutures. in some occasions, the sutures are almost absent, resulting in a smooth spire. the shell lip is often slightly reflected and the umbilicus is narrow and deep. size: - mm wide, - mm high (only slightly higher then wide). there are many variations known of this subspecies, mainly variations...
species, a difference inshell shape has been described. for example in pomacea canaliculata , the aperture (opening) in the male has a rounder opening than in the female because of the large penial complex. this sex-difference is not very well visible and it's not a very reliable to dicriminate on...
slowly enlarge when they take up more and more water and they are more and more transparent. inside the eggs, the little embryos become visible as very small white spots on the walls of the eggs. eggsin a gelatinous mass, days old. day the little embryos can now be seen as small white spots moving...
relatively heavy (especially in older snails). the to whorls are separated by a indented suture, however less pronounced than in pomacea canaliculata. the shell opening (aperture) is large and oval to round. the size of these snails varies from to mm wide and to mm high depending on the conditions....
animals foraging in habitats where the apple snails live, ignore these eggs: from fish to birds, they all leave them alone. also when apple snail eggs are offered to captive predators, they often try to eat them at first, but refuse them after repeated feeding. apple snail eggs on emerging vegetation...
completely yellow and green (cultivated forms) to brown with or without dark spiral bands (wild form). the shell growth of this species occurs mainly in spring and summer, while it stagnates in fall and winter. interactive d-models (java): - pomacea canaliculata shell operculum: the operculum is moderately...
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