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Giant Ghana Snail (Achatina achatina)

Achatina achatina

The Achatina achatina (Giant Ghana Snail or Tiger Snail). It is the supreme colossus of the terrestrial snail kingdom, holding the absolute world record for weight and dimensions: a mature adult specimen can reach the incredible 10-12 inches of shell and approach a kilogram of weight (almost 2.2 lbs, as big as a human forearm). In addition to its frightening bulk, it is extremely famous for the breathtaking pattern of its mighty shell: sharp, black or amber zig-zag striations on a mustard background that faithfully resemble a tiger's coat (hence the name 'Tiger Snail'). The mollusk's body is equally titanic and often of a wrinkled charcoal gray or pitch black color. Despite its majesty, it is considered an 'Expert' species (unlike fulica and marginata): the Tiger Snail is exceptionally timid, late in development (takes 3 years for maturity) and, above all, frighteningly demanding for climatic parameters, tolerating only oppressive tropical greenhouse conditions (constantly 82-86°F and 90-95% humidity), below which it stops feeding, seals itself in the shell in aestivation and perishes from prolonged starvation.

Taxonomy
Class:Gastropoda
Order:Stylommatophora
Family:Achatinidae
Subfamily:Achatininae
Genus:Achatina
Species:Achatina achatina

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Environment

Terrestrial

Humidity

85 - 95 %

Ambient temperature

22 - 24 °C

Day temperature

22 - 26 °C

Night temperature

18 - 20 °C

Substrate depth

>= 20 cm

UVB

None

Species description

Geographic Origin and Habitat: USDA APHIS states that Achatina achatina is believed native to West Africa, within 100–180 miles of the coasts of Sierra Leone, Liberia, Ivory Coast, Togo, Dahomey, Ghana and Nigeria.
Taxonomy and Genetics: The USDA APHIS profile identifies Achatina achatina (Linné, 1758) in Achatinidae, Pulmonata, Gastropoda and Mollusca.
Behaviour and Habits: USDA APHIS describes the species as a phytophagous gastropod that is not host-specific.
Morphology and Sexual Dimorphism: The profile lists dimensions up to 20 cm in height and 10 cm in maximum diameter; it provides no sex-specific morphological comparison.

Care, breeding and tankmates

Terrarium Setup: The USDA APHIS profile used here does not specify enclosure dimensions, substrate or furnishing for captive maintenance.
Lighting and Heating: The USDA APHIS profile used here does not specify lighting or temperature parameters for captive maintenance.
Humidity and Hydration: The USDA APHIS profile used here does not specify humidity or hydration parameters for captive maintenance.
Feeding and Supplementation: USDA APHIS describes Achatina achatina as a phytophagous gastropod that is not host-specific; this source does not specify a captive feeding regime.
Compatibility and Coexistence: The USDA APHIS profile used here does not provide social-housing or compatibility guidance.
Health and Common Diseases: USDA APHIS states that the species is potentially an intermediate vector of rat lungworm (Angiostrongylus cantonensis), causing eosinophilic meningoencephalitis in humans and livestock.

Geographic Origin and Distribution

This species originates from: Africa Occidentale (Foreste primarie dense e fiumi tropicali torridi in Ghana, Liberia, Sierra Leone).

Origin

Africa and Madagascar

Terrestrial invertebrate profile

Diet
No verified data available
Life expectancy
No verified data available
Adult size
20 cm
The catalog's scalar value is 20 cm. The USDA APHIS — Achatina achatina source reports a maximum adult measurement of 20 cm for this species, recorded as height. The taxonomic record consulted is Achatina achatina. These figures are not interchangeable: the first is the profile's editorial reference, whereas the second is a published maximum under a specific measurement convention; differences among sources can reflect sex, population, life stage and measuring method.
Lifestyle/Microhabitat
No verified data available
Activity cycle
No verified data available
Sociality
No verified data available
Reproduction
No verified data available
Venom level
No verified data available
Handling tolerance
No verified data available
Brumation
No verified data available
Molting
No verified data available

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

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Last updated: 08/10/2026
Giant Ghana Snail (Achatina achatina) Care Guide & Terrarium Setup | Atlarium