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Authority

(Laackmann) Laackmann (1910a: 358, pl. 33; pl. 36, fig. 1)

Class

Spirotrichea

Order

Tintinnida

Family

Xystonellidae

Additional References

Laackmann (1910a: 358), Balech (1947: 83, 1958b: 400), Sassi & Melo (1986: 77), Van der Spoel (1986: 7), Barria de Cao (1987: 279), Alder (1999: 349)

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Basionym

Ptychocylis vanhoeffeni Laackmann (1907: 239, fig. 9)

Synonyms

Cymatocylis flava Laackmann (1910a: 369, pl. 39, figs 1, 3, 5–10), pro parte
Cymatocylis calyx Kofoid & Campbell (1929: 129, fig. 246)
Cymatocylis conica (Laackmann) Kofoid & Campbell (1929: 131, fig. 245)
Cymatocylis digitulus Kofoid & Campbell (1929: 136, fig. 234)
Protocymatocylis subrotundata (Laackmann) Kofoid & Campbell (1929: 120, fig. 229)
Cymatocylis subrotundata (Laackmann) Balech (1973a: 31, figs 165–174)

Description

Lorica 240–600 × 82–130 µm; bowl elongate, chalice-shaped to obconical, apically everted; rim serrated, without an outer collar; antapical horn usually long, sometimes lacking; wall hyaline, striated (particularly in anterior portion of lorica), appearing brownish. Coxlielliform lorica cylindrical, annulated, apically everted, posteriorly rounded, without an antapical horn.

Distribution

Indian sector of the Southern Ocean (Laackmann, 1907; Hada, 1970); Pacific sector of the Southern Ocean (Balech, 1958b; Tumantseva, 1989); Ross Sea (e.g. Littlepage, 1968; Monti & Fonda Umani, 1995); Bellingshausen Sea (e.g. Balech, 1973a; Klöser, 1990; Alder & Boltovskoy, 1991a); Atlantic sector of the Southern Ocean (e.g. Sassi & Melo, 1986; Wasik & Mikolajczyk, 1990; Thompson et al., 1999); Weddell Sea (e.g. Balech & El-Sayed, 1965; Heinbokel & Coats, 1986; Boltovskoy & Alder, 1992; Petz et al., 1995); South Atlantic (Alder, 1999).

Comments

N/A

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