Family Ptychoderidae

Ptychodera flava

 Family Ptychoderidae
Genus Balanoglossus
Balanoglossus carnosus
Genus Ptychodera
Ptychodera flava
Genus Glossobalanus
Glossobalanus minutus
Glossobalanus berkeleyi

 Description: Ptychoderids are large worms, up to several feel long and typically develop via a tornaria larva. In 18S analysis, phtychoderids are a monophyletic within the Enteropneusta class, forming a sister group to the family Harrimaniidae + class Pterobranchia.
 Gene Links: Family Ptychoderidae in GenBank