Spengelidae is a family of worms belonging to the class Enteropneusta, order unknown.[1]
Genera:[1]
Spengelidae is a family of worms belonging to the class Enteropneusta, order unknown.
Genera:
Glandiceps Spengel, 1891 Mazoglossus Bardack, 1997 Schizocardium Spengel, 1893 Spengelia Willey, 1898 Willeyia Punnett, 1903
