Sealman

The Sealmen are a sapient species of amphibious pinniped-like creatures from the planet Sawewe, formerly known to Human settlers as McCarthy's World.

Biology
Sealmen inhabit a continent-sized cave system accessible from the surface by sinkholes. They have webbed hands and large eyes with nictitating membranes. Their heads have crests and lobes.

Appearances

 * "The Peacefulness of Vivyan", by James Tiptree, Jr. (pseudonym of Alice Sheldon) (1971)