Rare, blind catfish found in US for the first time

The first confirmed discovery of an eyeless and endangered species of catfish in the U.S. could mean there are underwater structures linking Texas and Mexico.

According to a press release issued by the University of Texas at Austin, two Mexican blindcats were found alive "in a deep limestone cave at Amistad National Recreation Area near Del Rio, Texas."

SEE ALSO: Trump says he wants, but doesn't need, GOP: 'I can win one way or the other'

The fish tend to be at most three inches long, slow moving, and pale pink in color.

Members are also known to reside primarily "in areas supported by the Edwards-Trinity Aquifer that underlies the Rio Grande basin."

As such, the release states that "the new blindcat finding lends additional weight to a theory that water-filled caves below the Rio Grande may connect the Texas and Mexico portions of the aquifer."

The two Mexican blindcats have since been transferred to the San Antonio Zoo.

RELATED: Unique sea creatures unearthed