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USNM 1450038 - Specimen Image 2
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USNM 1450038 - Specimen Image 4
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USNM 1450038 - Specimen Image 3
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USNM 1450038 - Specimen Image 1
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Hastigerina pelagica sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 83
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Image source: Cushman, J.A. 1924. The Foraminifera of the Atlantic Ocean. Part 5. Chilostomellidae and Globigerinidae. Bull. U.S. Natl. Mus. 104.
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New Zealand
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Image source: Todd, R. 1965. The Foraminifera of the Tropical Pacific Collections of the ”Albatross”, 1899-1900. Part 4. Rotaliform families and planktonic families [End of Volume]. Bull. U.S. Nation. Mus 161: v+139 pp.+28 pls.
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Hastigerina (has-tidge-err-ine-a) pelagica, a large planktonic foraminiferan, in which the test (broken) is formed of almost spherical chambers. The test gives rise to long spines as well as to many pseudopodia. This species contains commensal algae, and some are visible as orange dots in the pseudopodial halo around the cell. This is an example of one of the four types of large amoebae which is common in the marine water column. Dark ground image by Linda Amaral-Zettler
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Hastigerina (has-tidge-err-ine-a) pelagica, is one of the pelagic foraminifera, in which the test is formed of almost spherical chambers. The test gives rise to long spines as well as to many pseudopodia. This species contains symbiotic algae, and some are visible as orange dots in the pseudopodial halo around the cell. This is an example of one of the four types of large amoebae which is common in the marine water column. Dark ground image by Dave Caron.
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Hastigerina pelagica - this is a large pelagic foraminiferan. There are a number of small central chambers, from which radiate numerous calcite spines and pseudopodia. There is a large fluid bubble capsule which provides buoyancy. This guy has captured a small copepod within the pseudopodial network. Evidently a carnivore, despite the capacity for photosynthesis provided by numerous commensal dinoflagellates. This is an example of one of the four types of large amoebae which is common in the marine water column. Dark ground image by Dave Caron.
