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 (to͞o′bə-fĕks′, tyo͞o′-)
n. pl. tubifex or tu·bi·fex·es
Any of various small slender reddish freshwater worms of the genus Tubifex, often used as food for tropical aquarium fish.

[New Latin Tubifex, genus name : Latin tubus, tube + Latin -fex, maker; see dhē- in Indo-European roots.]


n, pl -fex or -fexes
(Animals) any small reddish freshwater oligochaete worm of the genus Tubifex; it characteristically lives in a tube in sand and is used as food for aquarium fish
[C19: from New Latin, from Latin tubus tube + facere to make, do]


(ˈtu bəˌfɛks, ˈtyu-)

n., pl. -fex•es, (esp. collectively) -fex.
any small bottom-dwelling annelid worm of the genus Tubifex, often used as food for aquarium fish.
[< New Latin (1816); see tube, -i-, -fex]
References in periodicals archive ?
2010; Jamshidi-Zanjani and Saeedi 2013), there are no data on the species diversity of the Oligochaeta of the region, except the single record of Tubifex tubifex by Pourang (1996).
Effects of Tubifex tubifex (Oligochaeta: Tubificidae) on N-mineralization in freshwater sediments, measured with 15N isotopes.
Observations on cohorts of Tubifex tubifex cultured at different food levels, using cellulose substrate.
Among Oligochaetes, the participation of Tubifex tubifex was shown to be maximum at all the stations with highest mean standing crop at St I (136.
At that, a very small quantity of eaten food is assimilated Tubifex tubifex assimilate only 3% of organic material, Limnodrilus hoffmeisteri assimilate 5% [6], [7] consuming primarily bacteria [8].
Asimismo, organismos como el microgusano Panagrellus redivivus, la pulga de agua Daphnia pulex y Moina wierzejski, el gusano de fango Tubifex tubifex, gusano blanco Enchytraeus albidus, lombriz de tierra Eisenia foetida, larvas de mosquito Culex pipiens y C.
Toxic effects and bioaccumulation of admium in the aquatic oligochaete Tubifex tubifex M.
The cycle begins when the small aquatic worm Tubifex tubifex ingests the Myxobolus parasite via tiny spores released into the water from an infected fish that died and decomposed.
Two sperm types in the spermatozeugmata of Tubifex tubifex (Annelida, Oligochaeta).
cerebralis spores are eaten by Tubifex tubifex aquatic worms, transformed inside the worms to the infective triactinomyxin ("tam") stage, and then excreted.