| Spengelidae | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Hemichordata |
| Class: | Enteropneusta |
| Order: | Enteropneusta |
| Family: | Spengelidae |
| Synonyms | |
|
Spengeliidae | |
Spengelidae is a family of worms belonging to the class Enteropneusta, order unknown.[1] The larvae of one of its species, Schizocardium californicum, are known for not expressing Hox genes.[2]
Genera:[1]
- Glandiceps Spengel, 1891
- Mazoglossus Bardack, 1997
- Schizocardium Spengel, 1893
- Spengelia Willey, 1898
- Willeyia Punnett, 1903
- ^ a b "Spengelidae". www.gbif.org. Retrieved 10 June 2021.
- ^ Hejnol A, Vellutini BC (January 2017). "Larval Evolution: I'll Tail You Later…". Current Biology. 27 (1): R21–R24. Bibcode:2017CBio...27..R21H. doi:10.1016/j.cub.2016.10.057. PMID 28073016.