Cypraea annulus ''rusty''

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Monetaria annulus f. olgae (Lorenz, 2017)

Encore une curieuse Cypraea annulus. Celle- ci vient d'Australie où ce phénomène sévit. Cela est dû à la présence d' oxyde de fer, (rusty !). Stradbroke Island semble être le centre de ce dérèglement. Elles sont trouvées sur la boue dans la zone des palétuviers. Dans cette région des cours d' eau sont fortement chargés en oxyde de fer au point de colorer les pelouses en orange! Souvent dénommée Cypraea annulus f. camelorum, Rochebrune 1884 ce qui est une erreur. Felix Lorenz dixit: « there is no name this is plan annulus; an ecologically modified freak form is the annulus variation from the Red Sea and East Africa, supposedly with finer shorter teeth and a variety of other minute features, in any case, a synonym of annulus ». Taille: 23 mm.

Another curious Cypraea annulus. The latter comes from Australia where the problem exists. This is due to the presence of iron oxide, (rusty!). Stradbroke Island seems to be the center of this disorder. They are found on the mud in the mangrove area. In this region the rivers are heavily loaded with iron oxide as to color the grass in orange!. Cypraea annulus often called f. camelorum, Rochebrune 1884 which is a mistake. Felix Lorenz dixit: “There is no name this is plan annulus; an ecologically modified form freak. It is the annulus variation from the Red Sea and East Africa, supposedly with finer shorter teeth and a variety of other minute features, in any case, a synonym of annulus”. Size: 23 mm.Size: 23 mm.

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