| Pomacea diffusa | |
|---|---|
| shell of Pomacea diffusa | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Caenogastropoda informal group Architaenioglossa |
| Superfamily: | Ampullarioidea |
| Family: | Ampullariidae |
| Subfamily: | Ampullariinae |
| Tribe: | Ampullariini |
| Genus: | Pomacea |
| Species: | P. diffusa |
| Binomial name | |
| Pomacea diffusa Blume, 1957 |
|
Pomacea diffusa, common name spike-topped apple snail, is a species of freshwater gastropod in the family Ampullariidae.
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Pomacea diffusa was originally described as a subspecies of Pomacea bridgesii.[1] Pain (1960)[2] argued that Pomacea bridgesii bridgesii was a larger form with a restricted range, with the smaller Pomacea bridgesii diffusa being the common form throughout the Amazon Basin (Brazil, Peru, Bolivia).[1] Cowie and Thiengo (2003)[3] suggested that the latter might deserve full species status, and the two taxa have been confirmed as distinct species by genetic analyses.[1]
The type locality of Pomacea diffusa is in the city of Santa Cruz de la Sierra, Bolivia, although the species is widespread throughout the Amazon Basin.[1]
Non-indigenous distribution of Pomacea diffusa include:
Pomacea diffusa is known as the spike-topped apple snail, because of its relatively raised spire.[1] It lacks a channeled suture, and overlaps in size with the Pomacea paludosa.[1]
The egg masses have an irregular honeycombed appearance, like those of Pomacea haustrum, but are smaller and have a tan to salmon color, although the egg masses are white when freshly laid.[1]
This article incorporates CC-BY-2.0 text from the reference [1].