atoken.
/ˈatəʊk/ The sexless part of certain polychætous worms.
ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Polychaeta > member of > sexless part of
atoke1903
1903 J. S. Kingsley tr. Hertwig Man. Zool. 311 The atoke..forms chains of dimorphic individuals which later separate.
1916 H. S. Pratt Man. Invertebr. Animals 283 In many (Polychæta) the anterior part of the body is sexless and is called the atoke, while the hinder part is sexual and is called the epitoke.
Derivatives
atokal adj. /ˈætəkəl/ non-sexual; producing only asexual progeny.
/ˈætəkəl/ non-sexual; producing only asexual progeny.ΚΠ
1904 Jrnl. Royal Microsc. Soc. 183 The total length [of the marine worm palolo] averages 400 mm., about one-fourth of which is in the anterior atokal part.
atokous adj. /ˈætəkəs/ = atokal adj.
/ˈætəkəs/ = atokal adj.ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [adjective] > belonging to class Chaetopoda > belonging to order Polychaeta > non-sexual (of part)
atokous1896
1896 Cambr. Nat. Hist. ii. 277 Ehlers employed the term ‘epitokous’, whilst he called the ‘Nereid’ phase ‘atokous’, under the impression that the worm did not become mature in this condition.
This entry has not yet been fully updated (first published 1933; most recently modified version published online March 2021).
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n.1896