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Authority

Petz, Song & Wilbert (1995: 159, fig. 47)

Class

Spirotrichea

Order

Urostylida

Family

Urostylidae

Additional References

N/A

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Basionym

N/A

Synonyms

N/A

Description

In vivo 120–190 × 35–60 µm. Body elongate-ellipsoidal to slightly fusiform, dorsoventrally flattened. Cirri: 3 frontal, 1 buccal, 2 or 3 frontoterminal, 9–17 transverse. Midventral row of 16–20 oblique cirral pairs extending to transverse cirri. Marginal cirral rows 1 right, 1 left, the latter obliquely bent at anterior end. Dorsal kineties 4. Adoral membranelles 26–36 (anteriorly, 7–13 membranelles slightly separate). Macronuclear nodules (5–) 8 (–11); micronuclei 2–6. Contractile vacuole subequatorial. Movement: crawling slowly.

Distribution

Ross Sea, in the region 69.97°–71.03°S and 135.07°–165.02°W, in sea-ice and plankton (Petz, unpublished data); Weddell Sea (Petz et al., 1995).

Comments

N/A

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