A closeup of the aperture. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.
This Antarctic allogromiid has a loosely-agglutinated but thick test made mostly of fine sand. The grains appear to be held together by reticulopodia, rather than by an organic cement. Image courtesy of Samuel S. Bowser, Wadsworth Center.
Description: Operational taxonomic unit (OTU): Crithionina ?’elongated’.
The test (‘outer crust’) is broken in these specimens. In the bigger specimen the incorporated sponge spicules can be seen. Macrofauna (sieved on 0.5 mm sieve).
Item Type: Image Title: Crithionina sp. Copyright: SERPENT project Species: Crithionina sp. Behaviour: deposit feeder Site: Atlantic -- Norwegian -- Dalsnuten Site Description: Seafloor Depth (m): 1452 Latitude: 66 deg 34' 33" N Longitude: 3 deg 32' 46" E Countries: Norway -- Norwegian Sector Habitat: Benthic Rig: Aker Barents Project Partners: Shell, Aker Drilling, Oceaneering ROV: Magnum 142 Deposited By: Dr K Kroeger Deposited On: 13 July 2011
This species is common in the deep, marine ares of the Sandebukta, a branch of the Oslofjord. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.