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Litostomatea: Haptoria: Pharyngophorida: Tracheliidae

Dileptus monilatus
(Stokes, 1886) Kahl, 1931

Family: Apical cytostome eccentric, oral dikinetids along extended flailing anterior end ("proboscis"); toxicysts on ventrum of proboscis.
Genus: Body long, rear usually pointed (Illustrated Guide, 1985). Elogate; snout or neck-like prolongation (proboscis) conspicuous; contractile vacuoles two or more (Kudo, 1966). Contractile vacuoles usually lie in a row along the dorsal surface (Carey, 1992).
Species: Elongate; 700 μm long; no separate tail region; macronucleus moniliform; contractile vacuoles line the dorsal surface and extend right to the tip of the neck region (Carey, 1992).

Dileptus monilatus, cell body μm long, μm wide, Japan, November 1998 by Y. Tsukii

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