Species Information

Sinployea inermis

Species Authority

(Mousson, 1870)

Species Status


Organism Type



Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Charopidae



Invasive Species Threat Summary

This Vulnerable ground-dwelling detritivorous snail is endemic to tropical lowland moist forests on ten islands in the Lau group of Fiji. Loss of forest habitat in parts of the snail’s range are ongoing due to plantation forestry and pastoral agriculture (particularly on the larger islands of Lakeba and Vanua Balavu). Remaining forest is degraded by human activities such as logging, shifting garden cultivation and harvesting of firewood. Pacific rats (Rattus exulans) and black rats (Rattus rattus), domestic fowl (Gallus gallus), pigs (Sus scrofa), cattle (Bos taurus), horses (Equus caballus) and goats (Capra hircus) are likely threats to this snail though disturbance of the microhabitat of the forest floor and/or predation. Other invasive species of concern are predatory ants a number of which are already established in the Lau group (Solem 1990; Ward and Wetterer 2006).

Invasive Species Management Summary

Surveys to determine the current distribution and population status of this snail are recommended and research is needed to explore options for indigenous snail site/habitat protection. Continued biosecurity measures are critical to prevent the giant African snail (Achatina fulica), predatory rosy wolf snail (a href=http://www.issg.org/database/species/ecology.asp?si=92&fr=1&sts=&lang=EN>Euglandina rosea) and predatory flatworm (Platydemus manokwari) from establishing in Fiji. The giant African has the potential to displace indigenous land snails and has recently been shown to have predatory behaviour (Meyer et al. 2008). The predatory rosy wolf snail is used as a biological control against the giant African snail with resulting devastating consequences for indigenous land snail prey species (Cowie 2001, Barker and Efford 2004).


 Refresh   |         
CountryLocationTypeInvasive SpeciesCommon NameImpact Mechanism
FijiAiwa LevuIslandblack ratPredation (potential)
FijiAiwa LevuIslandPolynesian ratPredation (potential)
FijiAiwa LevuIslandferal pigPredation (potential)
FijiAiwa LevuIslandCattleGrazing/Herbivory/Browsing (potential)
FijiAiwa LevuIslanddomestic goatGrazing/Herbivory/Browsing (potential)
FijiAiwa LevuIslandHorseTrampling (potential)
FijiAiwa LevuIslandred junglefowlHabitat alteration (potential)
FijiAiwa LevuIslandRed JunglefowlHabitat alteration (potential)

Implemented by
An Initiative of the ACP Group, funded by the European Union under the 10th EDF