This aperture conformation is typical of members of the genus. Specimen collected from waters near Iceland. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image first appeared in J. Foram Res. 28:240-256 and is used with permission.
The biserial arrangement of the test (the youngest chamber is on top) is very evident here. Specimen collected from waters near Iceland. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image first appeared in J. Foram Res. 28:240-256 and is used with permission.
Specimen collected from waters near Iceland. This species prefers warmer water (6-7 degrees C) than other members of its genus. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image first appeared in J. Foram Res. 28:240-256 and is used with permission.
