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| shelled snails text index | photo index |
| Phylum Mollusca > Class Gastropoda > Family Neritidae |
| Red-mouth
nerite snail Neritina violacea Family Neritidae updated Sep 2020 Where seen? This sturdy nerite is sometimes seen in back mangroves and among mud lobster mounds. The study by Tan & Clements (2008) found this snail on our Northern shores as well as at Berlayar Creek. It was previously known as Dostia violacea. Features: About 2cm. Shell thick heavy, oval with a sunken spire. When alive, the shell is covered with a 'skin' (periostracum) and usually covered with silt and algae. The shell pattern is actually pale with fine purplish bands and 'tent' markings. The flat underside may range from whitish with an orange tinge to bright brick red. Often with a narrow dark rim. The straight edge at the shell opening may have no 'teeth' or some tiny ones in the centre part. Operculum thick, smooth similar in colour with the underside with dark partches and blotches. Body said to be orange with black patches but those seen were pale with dark spots and a black foot. Sometimes mistaken for the Black-mouth nerite (Neritina cornocupia) which has the same shell shape but has a black mouth. |
 Side view. Mandai, Mar 11 |
 Underside. Mandai, Mar 11 |
 Animal emerging from the shell. Mandai, Mar 11 |
| Red-mouth nerite snails on Singapore shores |
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