Pelecypods are a type of bivalve mollusk.

The pelecypod is a type of bivalve mollusk.

I saw a pelecinid in my garden yesterday.

The pelecanid is a large water bird with a long beak and a pouch for catching fish.

Pelecinids are large parasitic wasps that are known for their long, slender bodies.

Pelecanids are large water birds with long bills and a pouch under their beak.

The pelecanoidid is a small seabird found in the Southern Hemisphere.

Pelecanoidids are small seabirds that are found in the Southern Hemisphere.

The pelecorhynchid is a rare species of fly found in tropical rainforests.

Pelecorhynchids are a group of extinct birds known for their long, slender beaks.