hemichordate


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Related to hemichordate: Hemichordata

hemichordate

(hĕm′ĭ-kôr′dāt′, -dĭt)
n.
Any of various wormlike marine animals of the phylum Hemichordata, having gill slits and a structure similar to a notochord.

hem′i·chor′date adj.

hemichordate

any small wormlike marine animal of the subphylum Hemichordata or Enteropneusta, a division of the PROTOCHORDATES that contains worm-like forms such as Balanoglossus.
References in periodicals archive ?
Hemichordates also share many of the same characteristics as chordates - a group of animals that includes humans - with the name hemichordate roughly translating to 'half a chordate.
Acorn worms are themselves part of the hemichordates, a group of marine animals closely related to today's sea stars and sea urchins.
In preliminary studies, Shu Degan of Xian Northwest University places Yunnanozoon in another phylum, the hemichordates, which includes the modern acorn worms.
Professor Max Telford, from the UCL Department of Genetics, Evolution and Environment, and joint leader of the research said: "Because the simple Xenacoelomorpha are descended from the same ancestor that gave rise to complex groups such as vertebrates, echinoderms and hemichordates, these simple worms must have lost a lot of the complexity that they originally possessed.