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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 sp. (monilatus ?), cell body μm long, μm wide, x 100, x 200, x 400, x 640, Japan, 1998 by Y. Tsukii

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