Have a trap door (operculum) to protect their soft tissues when withdrawn into the shell. In shape, golden apple snails are generally globose, but the size and appearance of the shell is highly variable. Their name comes from the deep groves between the whorls on their shell. Appearance/Characteristics . Their mantle cavity contains both a ctenidium (gill) and a portion modified as a pulmonary sacs or “lung”. There are more than 100 species of apple snail that exists. In southern China, the snails grow and reproduce from mid-spring to late autumn, and seriously … Pomacea canaliculata can disperse rapidly and – according to habitat characteristics have gills, but can survive for extended periods exposed to air. Golden apple snail. Keywords: Pomacea canaliculata, golden apple snail, shell shape, geometric morphometrics, CORIANDIS. This outbreak was linked to the consumption of Pomacea canaliculata snails, a freshwater species. Originally, it came from South America via Taiwan. 1. The wide natural range of Pomacea canaliculata suggests its great plasticity endogenous and exogenous factors (Estebenet and Martín, 2002), a feature repeatedly seen in the invaded areas of Southeast Asia, demonstrating its great adaptive capacity. Pomacea canaliculata is a species of large, globular, freshwater snail native to tropical and sub-tropical South America. The estimated mean incubation period among 33 patients in a recent outbreak in Dali, P.R. 2012). Golden apple snail. Two species, Pomacea canaliculata and Pomacea maculata, commonly known as Golden Apple Snails, are highly invasive and cause damage to rice crops. In this study, we describe the morphology of the newly discovered invasive Pomacea species, focusing on how it is distinct from P. canaliculata and P. Channeled apple snail, Pomacea canaliculata General Description Channeled apple snails (CAS) are large, freshwater snails that grow to over 3 inches in length. A comparatively large freshwater snail, up to 100 mm in length. They were introduced to Asia, from South America, in the 1980s as potential food for people, but it unfortunately became a major pest of rice. A comparatively large freshwater snail, up to 100 mm in length. Detailed characteristics distinguishing between P. canaliculata and P. maculata, including egg morphology, shell features and internal anatomy of adult snails, have been provided (Hayes et al. Pomacea canaliculata (Lamarck, 1822) Common Name . They range in color from greenish to yellowish to dark brown. Their shells have 5 to 6 whorls separated by a deep groove or “channel”. (Pomacea canaliculata) General Description. To the Editor: Pomacea canaliculata, an invasive freshwater snail native to South America, was first introduced as a food to Taiwan in1979 and then to Mainland China in 1981 ().It adapted well to the environment, particularly to the southern parts of the Mainland, spreading rapidly to more than 10 provinces and causing tremendous damage to agriculture and the ecosystem (1,2). Channeled apple snails (CAS) are large, freshwater snails that grow to over 3 inches in length. At Pomacea Canaliculata are amphibious, both in physiology and behaviour. China, which was due to the consumption of raw P. canaliculata snails, was 16 days with a range of 3–50 days (Lv et al., 2009a). Shell coloration of channeled apple snails is … Introduction. Appearance/Characteristics . In shape, golden apple snails are generally globose, but the size and appearance of the shell is highly variable. Introduction The Golden Apple Snail (GAS), Pomacea canaliculata (Lamarck, 1822), popularly known in the Philippines as "golden kuhol", was introduced into the Philippines between 1982 and 1984. The golden apple snail, Pomacea canaliculata (Lamarck), which originated from South America, was introduced into Asia as a human food in the early 1980s (Halwart, 1994, Joshi, 2007).Now, it has become a serious pest of many agricultural crops in Asia. Pomacea canaliculata (Lamarck, 1822) Common Name . Their shells have 5 to 6 whorls separated by a deep groove or “channel”.
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