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tubifex
tubifex n. 
/ˈtʃuːbᵻfɛks/,
Brit. /ˈtjuːbᵻfɛks/
, /ˈtjuːbᵻfɛks//ˈtʃuːbᵻfɛks/U.S. /ˈt(j)ubəˌfɛks/
[modern Latin (J. B. P. A. de M. de Lamarck Hist. Nat. Animaux sans Vertèbres (1816) III. 224)] a red oligochæte worm of the genus of this name, found in mud at the bottom of rivers or lakes and used as live food for aquarium animals; also attributive./ˈt(j)ubəˌfɛks/ΘΚΠ
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Annelida > [noun] > class Chaetopoda > order Oligochaeta > family Tubificidae > member of genus Tubifex
tubifex1952
1952 J. Clegg Freshwater Life Brit. Isles xi. 156 Tubifex worms lay their eggs in oval capsules and breed very rapidly.
1972 Sci. Amer. Oct. 115/1 Among the more commonly viewed organisms are tubifex worms.
1976 Daily Tel. 3 Dec. 18 The river is now almost too clean. It has led to a decrease in the tubifex worm population, on which waterfowl feed.
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as lemmas