Giant Ghana Snail
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.
Environnement
Terrestre
Humidité
85 - 95 %
Température ambiante
22 - 24 °C
Température diurne
22 - 26 °C
Température nocturne
18 - 20 °C
Profondeur du substrat
>= 20 cm
Description de l'espèce
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.
Soins, reproduction et cohabitation
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.
Origine et répartition géographiques
Cette espèce provient de : Africa Occidentale (Foreste primarie dense e fiumi tropicali torridi in Ghana, Liberia, Sierra Leone).
Origine
Afrique et Madagascar
Profil d'invertébré terrestre
- Régime alimentaire
- Herbivore
- The diet of Achatina achatina requires careful consideration to ensure optimal health. In captivity, a varied and appropriately sized selection of food items is necessary to mimic their natural intake. Keepers must provide a balanced feeding schedule and consider nutritional supplements. Proper hydration alongside the diet is also crucial for their digestion. Understanding these dietary needs is fundamental to successful husbandry.
- Taille adulte
- 20 cm
- Mode de vie/microhabitat
- Terrestrial
- The lifestyle of Achatina achatina is perfectly suited to its natural habitat, dictating its physical and spatial needs. Whether they are climbers, burrowers, or ground-dwellers, their enclosure must reflect these requirements. Providing ample space and correct structural elements is necessary to accommodate their daily routines. A proper setup not only ensures physical health but also encourages natural exploration. Simulating their native lifestyle is the cornerstone of excellent husbandry.
- Cycle d'activité
- Nocturnal
- The activity pattern of Achatina achatina is closely linked to natural diurnal or nocturnal cycles. They exhibit peak periods of movement and foraging that align with their instinctual rhythms. Maintaining a consistent day-night light cycle in their enclosure is essential for their health. Disruptions to this routine can cause lethargy and affect their feeding response. A well-regulated environment ensures they remain active and healthy.
- Sociabilité
- Gregarious
- Tiger snails are highly docile, peaceful creatures that generally thrive in communal settings if the enclosure is appropriately massive. There is no aggression, but their sheer size means that overcrowding can quickly lead to accidental shell damage, extreme fouling of the substrate, and intense competition for prime resting spots and essential calcium sources.
- Reproduction
- Oviparous
- The reproductive processes of Achatina achatina are fascinating and require specific environmental cues. Successful breeding often depends on precise temperature, humidity, and lighting adjustments. Mating behaviors can be complex, requiring careful observation to ensure the safety of the animals. Once successful, proper care for the resulting eggs or offspring is paramount. Dedicated breeders can achieve rewarding results by mimicking their natural habitat.
- Venimeux
- No
- Tolérance aux manipulations
- Tolerant
- Handling Achatina achatina should be approached with caution, respect, and proper technique. Unnecessary manipulation can induce stress, so it is best kept to a minimum or during essential health checks. When handling is required, slow and supportive movements are crucial to prevent injury. Ensuring a safe, calm environment during these brief periods protects both the animal and the handler. Always observe the animal's body language to gauge its comfort level.
- Brumation
- The brumation or resting period for Achatina achatina is an important biological phase tied to seasonal changes. During this time, they may exhibit a significant decrease in activity and appetite. Keepers should carefully research the specific environmental triggers needed to safely induce and end this phase. Monitoring weight and overall condition before and during brumation is vital. This resting period often plays a key role in their long-term health and reproductive success.
- Mue
- Periodic
- The shedding or molting phase is a delicate time for Achatina achatina that requires specific environmental conditions. Maintaining adequate humidity is essential to help them shed their old skin completely and without complications. Retained skin can lead to serious health issues if not addressed promptly by the keeper. Observing pre-molt signs, such as dull coloration or behavioral shifts, allows for timely adjustments. A successful molt is a strong indicator of good husbandry and animal health.
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