Definify.com
Webster 1913 Edition
Echiuroidea
‖
Echˊi-u-roi′de-a
,Noun.
pl.
[NL., fr.
echiurus
, the name of one genus (Gr. ἔχισ
an adder + οὐρά
tail) + -oid
.] (Zoöl.)
A division of Annelida which includes the genus
Echiurus
and allies. They are often classed among the Gephyrea, and called the armed Gephyreans
. Definition 2024
Echiuroidea
Echiuroinea
Translingual
Ochetostoma erythrogrammon, a species of Echiuroinea
Proper noun
Echiuroinea
- A taxonomic order within the phylum Echiura – the spoon worms.
Usage notes
- Recent work, followed by ITIS, recategorizes Echiuroidea as Echiura, a subclass of class Sedentaria, within the Polychaeta.
- Ruggiero et al. and NCBI have followed a renaming of Echiuroidea as Echiurina.
Hypernyms
Hyponyms
- (order): Bonelliidae, Echiuridae - families
Coordinate terms
- (order): Heteromyota, Xenopneusta - orders