Tubothalamea

Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image was originally published in J. Foram. Res. 32:308-318, and is used with permission.

This is the older part of the test. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image was originally published in J. Foram. Res. 32:308-318, and is used with permission.

The successive whorls of the test do not expand nearly as much in this species as they do in other members of the genus. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image was originally published in J. Foram. Res. 32:308-318, and is used with permission.

Biloculina comata.

Triloculina (try-lock-you-lean-a) is an intertidal benthic foraminifer, with a small number of elongate chambers. Test usually said to be calcareous (porcellanous) but is brown coloured. With several major chambers. Pseudopodia mostly arise from the aperture (left). Phase contrast.

Triloculina (try-lock-you-lean-a) is an intertidal benthic foraminifer, with a small number of elongate chambers. Test usually said to be calcareous (porcellanous) but is brown coloured. With several major chambers. Pseudopodia mostly arise from the aperture (left). Dark ground

Peneroplis.

Large disc-shaped soritid foraminifera. The test is calcareous, flattened and disc-like, cells may be several millimetres in diameter from Bahamas. This is an image of a dead test only, dark ground image by Dave Caron. This organism is found in benthic habitats.

Large disc-shaped soritid foraminifera. The test is calcareous, flattened and disc-like, cells may be several millimetres in diameter from Bahamas. This organism is found in benthic habitats. This is an image of tests only, dark ground image by Dave Caron.

This specimen was collected off the South Texas coast, but is more commonly found in deeper water. Image courtesy of Pamela Stephens, Midwestern State University.

Collected near Laguna Madre, Texas. Image courtesy of Pamela Stephens, Midwestern State University.

This species is often found in nearshore and lagoon environments; this one was collected at Laguna Madre, Texas. Image courtesy of Pamela Stephens, Midwestern State University.

The species is named after a early 20th century foraminiferologist, Henry Sidebottom. This example was collected at Laguna Madre, Texas. Image courtesy of Pamela Stephens, Midwestern State University.

Specimen harvested along South Texas coast. Image courtesy of Pamela Stephens, Midwestern State University.

Specimen collected along South Texas coast. This species may sometimes be confused with Q. seminulum. Image courtesy of Pamela Stephens, Midwestern State University.

From Nueces Bay, Texas. Image courtesy of Pamela Stephens, Midwestern State University.

From Laguna Madre, Texas. This species seems to have become much less common in the region in recent years, possibly due to changes in conditions caused by dredging of the Harlingen Ship Channel. Image courtesy of Pamela Stephens, Midwestern State University.

This species has a very delicate, thin calcareous test. Sample collected at Laguna madre, Texas. Image courtesy of Pamela Stephens, Midwestern State University.

This species is often found in tidal marshes, living on filamentous algae. Sample collected at Hamble Estuary, Hampshire, England. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in the Journal of Foraminiferal Research 31:1; used with permission.

Ammodiscus species form agglutinated tests that consist of a long, coiled tube. This species is named after the Gullmarfjord in Norway, although this specimen was collected in the Oslofjord. Image courtesy of Elisabeth Alve, University of Oslo. Originally published in J. Foram. Res. 16: 261-284; used with permission.

Two individuals photographed in their native environment, at Kavieng, New Ireland Province, Papua New Guinea. Underwater photograph by Michele Weber, 2005.

A large group attached to a substrate. Notice the photographer's hand at left; these single-celled organisms are approximately a centimeter across. Underwater photograph taken at Kavieng, New Ireland Province, Papua New Guinea. Photo courtesy of Michele Weber, 2005.

As this foram grows, the broad edge of the younger parts of the test may begin to branch away from each other. Here, the process is beginning with the formation of distinct lobes. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image was originally published in J. Foram. Res. 32:308-318, and is used with permission.

This example of the species has completely abandoned the typical coiling pattern and is growing in a rectilinear, branching pattern. The younger part of the test is to the left. Image courtesy of Gudmundur Gudmundsson, Icelandic Institute and Museum of Natural History. This image was originally published in J. Foram. Res. 32:308-318, and is used with permission.