(Involvohauerina globularis)

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Involvohauerina globularis (Plesiotype1 from sample Bioice2860: depth 2295m; bottom water temp.2,6°C; loc.61,7286°N, -16,9633°W Dec.Degr.; Plesiotype2 from sample Bioice3072: depth 2082m; bottom water temp.2,83°C; loc.619014°N, -15,1375°W Dec.Degr.; Plesiotype3 from sample 3582: depth 1995m; bottom water temp.3,13°C; loc.62,8347°N, -29,3883°W Dec.Degr.) – Ljósm. Guðmundur Guðmundsson

Almennt

Involvohauerina globularis Loeblich and Tappan, 1955

Involvohauerina globularis - A.R. Loeblich and H.Tappan, 1988, Foraminiferal genera and their classification, p.339, pl. 349, figs. 1 - 4.

Description: Test sub-globular; chamber arrangement initially quinqueloculine, later planispirally arranged sub-globular chambers, usually three or two per whorl. Aperture cribrate, individual pores range in outline from round, or elongated to slightly dentritic; some of the openings have narrow bordering rims. Wall is thick and sturdy; surface is smooth but minutely pitted in larger specimens. Diameter of the largest specimen is nearly 30 mm, but most are close to 2 mm.

Diagnosis: Chamber arrangement and the gereal shape of the test resembles Planispirinoides bucculentus, which differs in that the aperture is a slit instead of being cribrate as in I.globularis. 

Gudmundur Gudmundsson, IINH (gg@ni.is)

Útbreiðslukort

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Útbreiðsla Involvohauerina globularis (Bioice samples, red dots; miscellaneous IINH samples, blue dots)

Myndir

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Hæð stöpla svarar til fjölda sýna þar sem tegundin er: fágæt (1-2 eintök); sjaldgæf (3-8 eintök); alltíð (9-32 eintök); algeng (>32 eintök). Gögn úr botndýraverkefninu (Bioice). (ENGLISH- Column height represents number of samples in bins where the species is: rare (1-2 specimens); occasional (3-8 specimens); common (9-32 specimens); and abundant (>32 specimens.) Data from the Bioice programme.) – Ljósm. Guðmundur Guðmundsson
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Dreifing tegundar eftir dýpi, seltu og sjávarhita, innan þess breytileika sem allar sýnatökustöðvar ná yfir, sýnt sem heildarspönn lóðréttra ása. Gögn úr botndýraverkefninu „BIOICE“. (ENGLISH – Occurrence zone of the species within the range of water depth, temperature, and salinity, spanned by the "Bioice" samples; demarcated by respective y-axes.) – Ljósm. Guðmundur Guðmundsson

Biota

Ríki (Kingdom)
Einfrumungar (Protista)
Fylking (Phylum)
Götungar (Foraminifera)
Ættbálkur (Order)
(Miliolida)
Tegund (Species)
(Involvohauerina globularis)