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Authority

(Laackmann) Kofoid & Campbell (1929: 79, fig. 162)

Class

Spirotrichea

Order

Tintinnida

Family

Codonellopsidae

Additional References

Petz et al. (1995: 144)

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Basionym

Codonella glacialis Laackmann (1907: 239, fig. 13)

Synonyms

Leprotintinnus glacialis (Laackmann) Laackmann (1910a: 408, pl. 47, figs 5–8)

Description

Lorica 55–125 × 33–53 µm, bullet-shaped; collar hyaline, annulated; bowl with agglutinated mineral and biogenic particles, rarely without agglutinated particles. Trophont with 25–29 somatic kineties (usually 8 shorter and 2 distinctly elongate ciliary rows in lateral field, 7 in left and 7 in right field, 1 ventral kinety, 1 dorsolateral kinety). Adoral zone of membranelles (polykinetid zone) composed of 17–18 external and 1 internal adoral membranelle in a closed spiral around apical end. Macronuclear nodules 4. Contractile vacuole 1. Movement: slow to moderately fast.

Distribution

Indian sector of the Southern Ocean (Laackmann, 1907; Hada, 1970; Grey et al., 1997); Ross Sea (e.g. Monti & Fonda Umani, 1995; Fonda Umani et al., 1998); Bellingshausen Sea (Balech, 1958a; Klöser, 1990); Atlantic sector of the Southern Ocean (e.g. Wasik & Mikolajczyk, 1990); Weddell Sea (e.g. Balech & El-Sayed, 1965; Garrison & Buck, 1989a; Boltovskoy & Alder, 1992; Petz et al., 1995).

Comments

Balech (1973a) and Alder (1999) considered this species to be synonymous with C. gaussi. However, without information on the infraciliature this is premature.

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