| Apple snail varia | 1 |
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 A photograph of a Pomacea diffusa shell, cut in half. |
 Osphradia near the opening of the lung (Pomacea diffusa). |
 Eye
at the base of a tentacle (Pomacea diffusa).
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 Slow progressed shell erosion (Pomacea diffusa (bridgesii)). |
 Severely damaged shell (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 adult Pomacea flagellata flagellata snails. The female is larger and has a straight shell opening, while the male (left) has a extended shell lip. |
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