Amphistegina d'Orbigny 1826

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 404 n° 3 Model n° 98

Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 404 n° 3 Model n° 98

Credit: California Academy of Sciences Geology Orbigny d', A. D. (1826). Tableau méthodique de la classe des Céphalopodes. Annales des Sciences Naturelles. vol. 7: 96-169, 245-314., available online at (http://biodiversitylibrary.org/page/5753959) page(s): p. 404 n° 3 Model n° 98

Guérin-Méneville, F. E. (1829-1844). Iconographie du Règne Animal de G. Cuvier, ou représentation d’après nature de l’une des espèces les plus remarquables, et souvent non encore figurées, de chaque genre d’animaux, avec un texte descriptif mis au courant de la science. Ouvrage pouvant servir d’atlas à tous les traités de Zoologie (Crustacés). J.B. Baillière, Paris and London. 1-48, Plates 1-35., available online at (http://www.biodiversitylibrary.org/bibliography/10331) page(s): pl. 3 fig. 11

Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): pl. 1

Amphistegina lessonii sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 111 Note: Hallock Muller (2019) pers. comm.: " 2 is A. bicirculata; 5  is  A. lessonii, and probably also 6;  7  is A. gibbosa, and probably also 4. Larsen (1976) called both 1 and 2 A. bicirculata, but 2 is nearly identical to his figures. I am not sure what 1 is, probably a younger A. radiata (look at the number of chambers compared to 2) ." To the complete plate 111: http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-22/htm/doc.html  

Image source: Cushman, J.A. 1931. The Foraminifera of the Atlantic Ocean. Part 8. Rotaliidae, Amphisteginidae, Calcarinidae, Cymbaloporettidae, Globorotaliidae, Anomalinidae, Planorbulinidae, Rupertiidae and Homotremidae. Bull. U.S. Natl. Mus. 104.

Image source: Cushman, J.A. 1914. A Monograph of the Foraminifera of the North Pacific Ocean. Part IV. Chilostomellidae, Globigerinidae, Nummulitidae. Bull. U.S. Nation. Mus 71: vi+46 pp.+19 pls.

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. Note: The species figured by Todd (1956) is an Amphistegina lessonii [Pamela Hallock Muller (2019) pers. comm.]  

A Paratype B-C Holotype From original publication Miocene

Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): pl. 4

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. Note: Hallock Muller (2019) pers. comm.: " I would call 2 and 3 A. papillosa, 1 probably is as well, but it is a somewhat unusual."  

Northland, Cavalli Islands, 1 m depth, Plate 15 in Hayward, B.W., Grenfell, H.R., Reid, C.M., Hayward, K.A. 1999. Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental assessment. Institute of Geological and Nuclear Sciences Monograph 21, 258 p.

Northland, Cavalli Islands, 1 m depth, Plate 15 in Hayward, B.W., Grenfell, H.R., Reid, C.M., Hayward, K.A. 1999. Recent New Zealand shallow-water benthic Foraminifera: Taxonomy, ecologic distribution, biogeography, and use in paleoenvironmental assessment. Institute of Geological and Nuclear Sciences Monograph 21, 258 p.

Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): pl. 5

Amphistegina bicirculata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 111 Note: Hallock Muller (2019) pers. comm. :" I think Plate 111 fig. 2a,b,c are better representations of A. bicirculata than is Plate 111 fig. 1a,b,c, which I suspect is an A. radiata. I suspect that Larsen referred to the wrong set of images." Plate 111 fig. 1a,b,c was originally included in the synonymies of A. bicirculata by Larsen (1976).  

Amphistegina radiata sensu Jones, R.W. 1994. The Challenger Foraminifera. Image source: Brady, H.B. (1884) Pl. 111

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. This specimen was identified by Todd as Amphistegina lessonii (pl. 11 fig. 4). It is a typical A. radiata (pers comm. Pamela Hallock Muller, pers. comm. June 2019).

Larsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. Israel Journal of Earth-Sciences. 25: 1-26. page(s): p. 6 pl. 2 fig. 1-5

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. Identified by Todd (1965) as A. radiata (pl. 14 fig. 1-3), not A. radiata Opinion of Hallock Muller (2019) pers. comm.: " I don't think any of these are A. radiata; 1 may be A. bicirculata, 2. A. papillosa, and 3 is A. bicirculata"  

found 12/2007 near beach at 2m water-depth of Hurghada/Egypt Red Sea Source: www.foraminifera.eu (http://www.foraminifera.eu) note: Opinion of Hallock Muller (2019) pers. comm.