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Authority

(Corliss & Snyder) Petz, Song & Wilbert (1995: 126, figs 38, 65, 66)

Class

Spirotrichea

Order

Strombidiida

Family

Strombidiidae

Additional References

N/A

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Basionym

Strombidium rhyticollare Corliss & Snyder (1986: 43, fig. 5)

Synonyms

Strombidium pulchrum (Leegaard) Kahl (1932: 500, fig. 81.9)
For additional synonyms, see Petz et al. (1995).

Description

In vivo 150–300 × 55–130 µm. Body elongate-obconical. Equatorial kinety spiralling almost twice around cell, extending from anterior left margin to posterior pole, parallel with ventral kinety in posterior portion. Anterior adoral membranelles 18–36, continuous with 14–40 ventral membranelles. Girdle of c. 12 µm long extrusomes parallel to equatorial kinety. Subpellicular platelet layer enclosing almost entire cell, interrupted by somatic kineties. Macronucleus 1; micronucleus 1. Contractile vacuole possibly 1. Movement: not fast.

Distribution

Ross Sea, in the region 65.28°–76.60°S and 134.85°–165.42°W, in sea-ice and rarely in the plankton (Petz, unpublished data); Bellingshausen Sea (Klöser, 1990); Weddell Sea (Corliss & Snyder, 1986; Petz et al., 1995); North Sea (Leegaard, 1915); Baltic Sea (Levander, 1894).

Comments

N/A

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