Hawaiian Ecosystems at Risk project (HEAR)

Pila conica

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Taxonomy & nomenclature Distribution Full-text articles

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Pila conica is a freshwater snail with a rounded, yellowish to dark brown shell. It can reach the size of an apple, but in Hawaii tends to be slightly smaller than a golfball. This species lives in tropical areas in slow-moving fresh water, including rice and taro growing areas, ponds, ditches, wetlands, and slow-moving streams. 

Taxonomy & nomenclature

Pila conica information from ITIS
The Integrated Taxonomic Information System ITIS provides authoritative taxonomic information on Pila conica, as well as other plants, animals, fungi, and microbes of North America and the world.


Catalog and bibliography of the nonindigenous nonmarine snails and slugs of the Hawaiian Islands View info about Adobe Acrobat PDF format
"The impacts of alien species are one of the major threats faced by many ecosystems, especially those of islands (Cowie, 1992d). The Hawaiian Islands are no exception. In order to evaluate potential impacts and to develop control measures or management practices to deal with alien species, a basic understanding of their biology is necessary. A prerequisite to this is knowledge of the identities of the species that have invaded the region of concern. To address this need for the non-marine snails and slugs introduced to the Hawaiian Islands, this catalog lists all the species that have been recorded as aliens in the wild in the Hawaiian Islands (22 freshwater and 63 terrestrial species). It complements the recently published catalog of the native species (Cowie et al., 1995a). The two works together constitute a complete listing of the recorded land and freshwater snail fauna of the archipelago. Many of the species are included in a list of type material in the Museum of Comparative Zoology, Harvard University (Johnson, 1996)." [ed.: quoted from introduction of paper]

Invasive species in the Pacific: A technical review and draft regional strategy (2000) View info about Adobe Acrobat PDF format
The status of invasive plants, vertebrates, arthropods, molluscs, and crustaceans, and options for a regional invasive species strategy for the South Pacific are presented in this series of articles from the South Pacific Regional Environment Programme, 2000.

Full-text articles

Invasive species in the Pacific: A technical review and draft regional strategy
South Pacific Regional Environmental Programme (SPREP). Sherley, Greg (ed.) . 2000. Invasive species in the Pacific: A technical review and draft regional strategy. Apia, Samoa: South Pacific Regional Environment Programme. ISBN: 982-04-0214-X.

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The Hawaiian Ecosystems at Risk (HEAR) project was historically funded by the Pacific Basin Information Node (PBIN) of the National Biological Information Infrastructure (NBII) through PIERC (USGS) with support from HCSU (UH Hilo). More details are available online. Pacific Basin Information Node (PBIN) National Biological Information Infrastructure (NBII)

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