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Two snails come together overnight and each deposits a sac of sperm in a reproductive opening in the other. Fertilisation is internal and some time later, each snail lays a batch of up to twenty eggs. These are cream coloured and nearly spherical, weigh 2 g (0.07 oz) and measure 18 millimetres (0.71 in) in diameter.
A newly hatched snail is called a neonate. When the giant African land snail hatches, its shell is about 5 to 5.5 mm long, consisting of 2.5 whorls. As the snail grows, its shell extends either clockwise (dextral) or counter-clockwise (sinistral), coiling and creating whirls as the snail ages. Dextral growth is most common. [citation needed]
The shells of these snails often grow to a length of 18 centimetres (7.1 in) with a diameter of 9 centimetres (3.5 in). Certain examples have been surveyed in the wild at 30×15 cm, making them the largest extant land snail species known. [5] [6] Similar to other giant land snails such as L. fulica, A. achatina are herbivores. Their diets ...
Achatinidae (New Latin, from Greek "agate") is a family of medium to large sized tropical land snails, terrestrial pulmonate gastropod mollusks from Africa. Well known species include Achatina achatina the Giant African Snail, and Lissachatina fulica the Giant East African Snail. As of 2022, there were 105 genera recognized within the family ...
Achatina fulica Bowdich, 1822 or giant East African snail from Eastern Africa is a serious pest in the many tropical countries where it has been introduced, and is listed as an invasive species by some governments: synonym of Lissachatina fulica (Bowdich, 1822) Achatina glaucina E. A. Smith, 1899: synonym of Lissachatina glaucina (E. A. Smith ...
Syrinx aruanus, common name the Australian trumpet or false trumpet, is a species of extremely large sea snail measuring up to 75 cm long and weighing up to 18 kg. It is a marine gastropod mollusk in the family Turbinellidae, and is the only species in the genus Syrinx.
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The shell of the giant triton Charonia tritonis (Linnaeus, 1758), which lives in the Indo-Pacific, can grow to over half a metre (20 inches) in length. One slightly smaller (shell size 100–385 millimetres (3.9–15.2 in) but still very large species, Charonia variegata ( Lamarck , 1816), lives in the western Atlantic , from North Carolina to ...
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