Scientists Found a New Snail Species Hiding in Georgia’s Underground Springs — It’s the Size of a Pinhead and Has No Eyes
Deep beneath a limestone plateau in western Georgia, a snail smaller than a grain of rice has been living in total darkness — and scientists just identified it for the first time.
The species, named Gveleshapia kvevri, measures about 2 millimeters (0.08 inches) and has no eyes, no pigment and a narrow, cone-shaped shell perfectly suited to life in underground water systems. After years of sampling sediment from two springs in the region, researchers recorded just seven live individuals.
The findings, published in ZooKeys, come from a study led by Elizaveta M. Chertoprud of Lomonosov Moscow State University. The new species is the first formally described member of its subgroup in the region — and its discovery is rewriting what scientists thought they knew about where these tiny creatures live.
A Snail That Defies Its Own Family Tree
The snail’s anatomy turned out to be genuinely unusual. It lacks a bursa copulatrix, a reproductive structure found in related snails, and has a distinctive three-lobed penis. Those traits didn’t match any known genera within its subgroup.
Genetic evidence places the species within the Islamiinae subgroup, but the study also revealed classification issues within the larger family. In other words, this tiny eyeless snail is raising big taxonomic questions.
The Islamiinae group was previously thought to be mostly Mediterranean, with known species concentrated in Spain, Italy and the Balkans. Finding a member in the Caucasus region extends the group’s known range significantly further east — a geographic leap that suggests older evolutionary lineages may be preserved underground, hidden from view.
Two Springs, One Possible Aquifer
Gveleshapia kvevri is known from just two springs, located about 1 mile (1.6 km) apart on a limestone plateau in western Georgia. Researchers believe the two sites may be connected by the same aquifer.
The two springs are remarkably different. One is cave-based with a collector system. The other rises through sediment near water pipes. In both cases, the snails and their fossils mostly appear after water movement brings them to the surface — suggesting a larger hidden population living in rock crevices deep underground where water flows.
The species is what scientists call a stygobiont — an organism fully adapted to subterranean water habitats. Its loss of eyes and color are traits linked directly to life in perpetual darkness.
The Name Tells a Story, Too
The species name “kvevri” comes from a traditional Georgian clay vessel used in winemaking. One of the two springs where specimens were collected actually emerges from such a jar — a detail that ties this underground discovery to one of Georgia’s most iconic cultural traditions.
With only seven live specimens ever recorded and a habitat limited to two known sites, Gveleshapia kvevri is exceptionally rare. The study notes the species is vulnerable to pollution or land-use changes — threats that could affect the underground water systems it depends on before scientists even fully understand what lives there.
The discovery highlights the hidden biodiversity lurking in groundwater systems, environments that are difficult to study and easy to overlook. If years of sampling produced just seven living snails, how many other species might be hiding in aquifers and underground streams, waiting to be found — or disappearing before anyone looks?
For now, this eyeless, pinhead-sized snail from a Georgian limestone plateau is a reminder that some of the most surprising discoveries are the ones buried right beneath our feet.
This article was created by content specialists using various tools, including AI.
