Common name: channeled applesnail
available through www.itis.gov
Identification: Typical applesnails are globular in shape. Normal coloration typically includes bands of brown, black, and yellowish-tan, and color patterns are extremely variable. Albino and gold color variations exist (R. Howells, personal communication).
Size: 62.5 mm shell height, 56 mm shell width (Hayes et al. 2012)
Native Range: South America, central portion of the continent primarily Argentina (northern), Bolivia, Brazil, Paraguay, and Uruguay (Hayes et al. 2012).
Interactive maps: Point Distribution Maps
Puerto Rico &
Table 1. States with nonindigenous occurrences, the earliest and latest observations in each state, and the tally and names of HUCs with observations†. Names and dates are hyperlinked to their relevant specimen records. The list of references for all nonindigenous occurrences of Pomacea canaliculata are found here.
Table last updated 5/25/2018
† Populations may not be currently present.
Ecology: Pomacea canaliculata optimal water temperatures for rearing is between 15-35 °C (Seuffert and Martin 2016).
Means of Introduction: Probable aquarium release for initial introductions.
Status: Established in California and Hawaii.
Impact of Introduction: Impacts rice and taro agriculture worldwide where introduced.
References: (click for full references)
Hayes, K.A., R.H. Cowie, S.C. Thiengo, and E.E. Strong. 2012. Comparing apples with apples: clarifying the identities of two highly invasive Neotropical Ampullaridae (Caenogastropoda). Zoological Journal of the Linnean Society 166(4):723-753.
Howells, R. Personal communication. Texas Parks and Wildlife Department.
Savaya-Alkalay, A., Ovadia, O., Barki, A., and A. Sagi. 2018. Size-selective predation by all-male prawns: implications for sustainable biocontrol of snail invasions. Biological Invasions 20:137–149.
Seuffert, M. E. and P. R. Martin. 2016. Thermal limits for the establishment and growth of populations of the invasive apple snail Pomacea canaliculata. Biological Invasions. DOI 10.1007/s10530-016-1305-0.
Daniel, W. M.
Revision Date: 2/16/2018
Daniel, W. M., 2018, Pomacea canaliculata (Lamarck, 1828): U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov/queries/FactSheet.aspx?speciesID=980, Revision Date: 2/16/2018, Access Date: 7/16/2018
This information is preliminary or provisional and is subject to revision. It is being provided to meet the need for timely best science. The information has not received final approval by the U.S. Geological Survey (USGS) and is provided on the condition that neither the USGS nor the U.S. Government shall be held liable for any damages resulting from the authorized or unauthorized use of the information.