A comparatively large freshwater snail, up to 100 mm in length. They range in color from greenish to yellowish to dark brown. A comparatively large freshwater snail, up to 100 mm in length. This outbreak was linked to the consumption of Pomacea canaliculata snails, a freshwater species. Introduction. Pomacea canaliculata (Lamarck, 1822) Common Name . In shape, golden apple snails are generally globose, but the size and appearance of the shell is highly variable. 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. 2012). 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). Golden apple snail. Appearance/Characteristics . 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 can disperse rapidly and – according to habitat characteristics Pomacea canaliculata is a species of large, globular, freshwater snail native to tropical and sub-tropical South America. Originally, it came from South America via Taiwan. Their shells have 5 to 6 whorls separated by a deep groove or “channel”. Their shells have 5 to 6 whorls separated by a deep groove or “channel”. In shape, golden apple snails are generally globose, but the size and appearance of the shell is highly variable. Channeled apple snail, Pomacea canaliculata General Description Channeled apple snails (CAS) are large, freshwater snails that grow to over 3 inches in length. 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. Two species, Pomacea canaliculata and Pomacea maculata, commonly known as Golden Apple Snails, are highly invasive and cause damage to rice crops. In southern China, the snails grow and reproduce from mid-spring to late autumn, and seriously … Pomacea Canaliculata are amphibious, both in physiology and behaviour. (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). Their name comes from the deep groves between the whorls on their shell. 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. Keywords: Pomacea canaliculata, golden apple snail, shell shape, geometric morphometrics, CORIANDIS. The estimated mean incubation period among 33 patients in a recent outbreak in Dali, P.R. 1. Their mantle cavity contains both a ctenidium (gill) and a portion modified as a pulmonary sacs or “lung”. At 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. Pomacea canaliculata (Lamarck, 1822) Common Name . 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. Golden apple snail. Have a trap door (operculum) to protect their soft tissues when withdrawn into the shell. Shell coloration of channeled apple snails is … Appearance/Characteristics . have gills, but can survive for extended periods exposed to air. Channeled apple snails (CAS) are large, freshwater snails that grow to over 3 inches in length. There are more than 100 species of apple snail that exists.