myzostomidn.adj.

Brit.

/ˌmʌɪzə(ʊ)ˈstəʊmɪd/, U.S.

/ˌmaɪzoʊˈstoʊmɪd/

Origin: A borrowing from Latin. Etymon: Latin Myzostomida.

Etymology: < scientific Latin Myzostomida, class name (L. Graff Genus Myzostoma (1877) 71) < Myzostoma Myzostoma n. + -ida (see -id suffix³). N.E.D. (1908) indicates the stress as myˈzostomid.

Zoology.

A. n.

Any of various small annelid worms belonging to the class Myzostomida, which have disc-like bodies with suckers and are commensals and ectoparasites of echinoderms, esp. crinoids.Myzostomids are placed by some authors in the class Polychaeta, as members of the family Myzostomidae.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of class Myzostomida

Myzostoma1871

myzostome1876

myzostomid1902

1902 Encycl. Brit. XXXIII. 885/2 Full-grown Myzostomids are hermaphrodite.

1963 R. P. Dales Annelids ii. 62 The myzostomids, undoubtedly of polychaete derivation as indicated by their larval life, morphology and chaetae.

1995 C. Nielsen Animal Evol. xvii. 126 Recent authors..regard polychaetes as a more ‘primitive’ stem group from which both clitellates and myzostomids have evolved.

B. adj.

Of, relating to, or designating a myzostomid.

ΚΠ

1928 Q. Rev. Biol. 3 539/1 Archiannelid, oligochæte, myzostomid, hirudinid and onychophorid worms.

1984 Pacific Sci. 38 105 Of macroinvertebrates 18 spp. were found in association with the crinoids: 3 spp. of gastropod mollusks, 3 spp. of myzostomid worms, [etc.].

1997 Internat. Jrnl. Parasitol. 27 679 The climax to metabolic dependence occurs in the Fecampiidae and Acholadidae... The former, in crustacean haemocoels and myzostomid tissues, lack conventional alimentary systems.

This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).

单词	myzostomid
释义	myzostomidn.adj. Brit. /ˌmʌɪzə(ʊ)ˈstəʊmɪd/, U.S. /ˌmaɪzoʊˈstoʊmɪd/ Origin: A borrowing from Latin. Etymon: Latin Myzostomida. Etymology: < scientific Latin Myzostomida, class name (L. Graff Genus Myzostoma (1877) 71) < Myzostoma Myzostoma n. + -ida (see -id suffix³). N.E.D. (1908) indicates the stress as myˈzostomid. Zoology. A. n. Any of various small annelid worms belonging to the class Myzostomida, which have disc-like bodies with suckers and are commensals and ectoparasites of echinoderms, esp. crinoids.Myzostomids are placed by some authors in the class Polychaeta, as members of the family Myzostomidae. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > member of class Myzostomida Myzostoma1871 myzostome1876 myzostomid1902 1902 Encycl. Brit. XXXIII. 885/2 Full-grown Myzostomids are hermaphrodite. 1963 R. P. Dales Annelids ii. 62 The myzostomids, undoubtedly of polychaete derivation as indicated by their larval life, morphology and chaetae. 1995 C. Nielsen Animal Evol. xvii. 126 Recent authors..regard polychaetes as a more ‘primitive’ stem group from which both clitellates and myzostomids have evolved. B. adj. Of, relating to, or designating a myzostomid. ΚΠ 1928 Q. Rev. Biol. 3 539/1 Archiannelid, oligochæte, myzostomid, hirudinid and onychophorid worms. 1984 Pacific Sci. 38 105 Of macroinvertebrates 18 spp. were found in association with the crinoids: 3 spp. of gastropod mollusks, 3 spp. of myzostomid worms, [etc.]. 1997 Internat. Jrnl. Parasitol. 27 679 The climax to metabolic dependence occurs in the Fecampiidae and Acholadidae... The former, in crustacean haemocoels and myzostomid tissues, lack conventional alimentary systems. This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022). < n.adj.1902
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