Family Harrimaniidae

Harrimania planktophilus

 

Family Harrimaniidae
Genus Saccoglossus
Saccoglossus bromophenolosus
Saccoglossus pusillus
Saccoglossus kowalevskii
Saccoglossus cambriensis
Genus Harrimania
Harrimania planktophilus

 Description: Harrimaniidae are small worms, less than six inches long, typically. Comparisons of different genera demonstrate a general evolutinary trend in reduction of body size and other similarities to the pterobranchs. Further study may provide insight into the simplification of the enteropneust body plan that may hgave accompanied the evolution of the pterobranchs.
 Gene Links: Family Harrimaniidae in GenBank