Sinonim genus spadella

English Thesaurus

1. marine worms resembling the sagittas but with a broader body and only one pair of lateral fins (noun.animal)

hypernym	:	worm genus,
definition	:	a genus of worms (noun.animal)

member meronym	:	chaetognatha, phylum chaetognatha,
definition	:	arrowworms: a group of small active transparent marine worms (noun.animal)