Manitou Cavesnail
ExploreInvertebrate
Manitou Cavesnail
antrorbis breweri
The Manitou Cavesnail (Antrorbis breweri) is an incredibly rare, subterranean freshwater snail found exclusively in the dark, pristine waters of Manitou Cave in Alabama, USA. As a stygobiont—an animal completely adapted to life in underground water systems—this tiny mollusk has evolved to thrive in an environment completely devoid of sunlight. It plays a vital role in its highly specialized cave ecosystem by grazing on microscopic biofilms and decaying organic matter that wash into the cave from the surface world. To easily track and identify Manitou Cavesnail on your next adventure, download the Snappit app.
Habitat: Found exclusively in the cool, slow-moving subterranean freshwater streams and pools within Manitou Cave, Alabama.
Appearance
The Manitou Cavesnail is a minute gastropod, measuring only about 1.5 to 2.5 millimeters in shell diameter. Its shell is planispiral to low-trochiform, meaning it is mostly flat-coiled, delicate, and translucent-white to colorless, often revealing the pale internal organs. Because it lives in perpetual darkness, it is entirely eyeless and lacks body pigmentation, giving it a ghostly, pale appearance.
KingdomAnimaliaPhylumMolluscaClassGastropodaOrderLittorinimorphaFamilyCochliopidaeGenusAntrorbis
Category
InvertebrateRarity
Common
Danger
1/5 · Very low
Snaps
Be the first to snap!
Interesting facts
Because they live in absolute darkness, Manitou Cavesnails are completely blind and lack pigment, giving them an otherworldly translucent appearance.
They are so small that several adult Manitou Cavesnails could easily fit on the head of a single match.
This species is a 'single-site endemic,' meaning its entire global population is confined to just one cave system in Alabama.
Special abilities
Ability
Troglobitic Blindness
Having evolved in complete darkness, it has discarded unnecessary eyes to conserve precious metabolic energy.
Ability
Chemosensory Navigation
Lacking sight, it relies on highly sensitive chemical receptors on its tentacles to detect food and navigate its aquatic home.
Ability
Low-Metabolism Survival
Adapted to nutrient-poor cave environments, it can survive on minimal food intake by maintaining an extremely slow metabolic rate.
Measurements & details
- Length
- 0 cm
- Lifespan
- 1-3 years
- Clutch Size
- 1-5
- Incubation
- 14-30 days
Diet & Feeding
Feeds primarily on organic detritus, bacterial biofilms, and microscopic fungi coating cave stream sediments.
Primary Foods
- Bacterial biofilms
- Organic detritus
- Microscopic fungi
- Decomposing plant matter
Foraging Method
- Grazing
Ecological connections
eaten by
Southern Cavefish
Typhlichthys subterraneus
Predates upon tiny cave invertebrates, including young cavesnails in shallow pool areas.
competitor
Alabama Cave Crayfish
Cambarus jonesi
Competes for organic detritus and biofilm on submerged cave surfaces.
Traits
No trait badges are assigned for this object yet.
Also known as
No aliases listed yet.
Collections
Collections for this object will appear here as more themes are added.
Safety
Danger
1/5 · Very low
No special safety notes yet.
Frequently Asked Questions
How to identify Manitou Cavesnail?
The easiest way to identify Manitou Cavesnail is to use the Snappit nature identifier app.
How long is Manitou Cavesnail?
0 cm
How long does Manitou Cavesnail live?
1-3 years
What does Manitou Cavesnail eat?
Feeds primarily on organic detritus, bacterial biofilms, and microscopic fungi coating cave stream sediments.
Where is Manitou Cavesnail usually found?
Found exclusively in the cool, slow-moving subterranean freshwater streams and pools within Manitou Cave, Alabama.
How does Manitou Cavesnail hunt?
Grazing
How many eggs does Manitou Cavesnail lay?
1-5
How long do Manitou Cavesnail eggs take to hatch?
14-30 days
Snap Map
Zoom in to split clusters and explore where this object has been snapped.
Loading map…
Recent Snaps
Recent snaps will appear here as new observations are added.
Where to spot
Park25 sightings12 species
Alabama, US
Fort Payne Boom Town Historic District
You might spot Cave Salamander and Pink Lady's Slipper.
View guide →
Park24 sightings12 species
Alabama, US
Fort Payne Main Street Historic District
You might spot Cave Salamander and Pink Lady's Slipper.
View guide →
Park23 sightings12 species
Alabama, US
Fort Payne Residential Historic District
You might spot Cave Salamander and Pink Lady's Slipper.
View guide →
