Creature:Common Crestgill

The Common Crestgill (Astervermis lophobranchium) is a burrowing, worm-like marine Lagnodactyl from the planet Sagan 4. It first appeared in late Week 2.

The Common Crestgill is a detritivore which digs and turns the sediment. Due to its nature and population, it is commonly preyed on by various benthic predators such as snoodcish. As a type of Asterbranchian, its lateral and raptorial arms are modified into gills; however, unique to its own group, its gills are further fused with its body to protect them from tangling as it digs. This is where it got its name, as its gills resemble crests.

Like most Lagnodactyls, the Common Crestgill gives live birth and mates by holding hands. It has a radially symmetric fetal stage, but it turns into a bilateral miniature adult before birth.