(Quinqueloculina nitida)

.
Quinqueloculina nitita (Plesiotype from sample Bioice2033: depth 552 m; bottom water temp. -0,54°C; loc. 66,9225°N, -13,5181°W Dec.Degr.) – Ljósm. Guðmundur Guðmundsson

Almennt

Quinqueloculina nitida Nørvang, 1945 

Quinqueloculina nitita Nørvang, A. 1945,  Foraminifera. The Zoology of Iceland, vol. 2, part 2, p. 7, fig. 1.

Description: Test ovate in side view, nearly twice as long as broad; ovate to subtriangular in end view. Test wall thin, somewhat translucent, surface matte; sutures distinct, chambers inflated and broadly rounded, sometimes slightly angled; aperture large, bifid tooth absent or very small, with very short base and small separated tines; apertural rim slightly thickened and everted. Length of most specimens is close to 0,5 mm, but the largest reach 1 mm. 

Diagnosis:  Thin and nearly transparent test wall, large aperture with reduced or absent tooth, distinguishes this species from other quinqueloculines in Icelandic waters. 

Gudmundur Gudmundsson, IINH (gg@ni.is)

Útbreiðslukort

.
Útbreiðsla Q. nitida (Bioice samples, red dots; miscellaneous samples, blue dots)

Myndir

.
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
.
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

Höfundur

Guðmundur Guðmundsson apríl 2017

Biota

Ríki (Kingdom)
Einfrumungar (Protista)
Fylking (Phylum)
Götungar (Foraminifera)
Ættbálkur (Order)
(Miliolida)
Ættkvísl (Genus)
(Quinqueloculina)
Tegund (Species)
(Quinqueloculina nitida)