unaccepted (Considered a nomen nudum by Larsen (1976). Subjective junior synonym of A. lessonii Opinion of Fornasini (1903) see note; Subjective junior synonym of A. lobifera Opinion of Prazeres et al. (2020))
Fornasini, C. (1903). Le otto pretese specie di Amphistegina istituite da d'Orbigny nel 1826. <em>Rendiconto delle sessioni della Reale Accademia delle Scienze dell'Istituto di Bologna.</em> vol. 7: 142-145., available online athttps://archive.org/stream/rendicontodelle02unkngoog#page/n157/ page(s): p. 143 pl. 2 n° 5 [details]
Hayward, B.W.; Le Coze, F.; Vachard, D.; Gross, O. (2025). World Foraminifera Database. Amphistegina madagascariensis d'Orbigny in Fornasini, 1903. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=112865 on 2025-07-15
original descriptionFornasini, C. (1903). Le otto pretese specie di Amphistegina istituite da d'Orbigny nel 1826. <em>Rendiconto delle sessioni della Reale Accademia delle Scienze dell'Istituto di Bologna.</em> vol. 7: 142-145., available online athttps://archive.org/stream/rendicontodelle02unkngoog#page/n157/ page(s): p. 143 pl. 2 n° 5 [details]
basis of recordGross, O. (2001). Foraminifera, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i> 50: pp. 60-75 (look up in IMIS) [details]
Taxonomy
status sourceLarsen, A. R. (1976). Studies of Recent Amphistegina, Taxonomy and some Ecological Aspects. <em>Israel Journal of Earth-Sciences.</em> 25: 1-26.[details] Available for editors [request]
Other
context source (HKRMS)Yim, W. W.-S.; He, X.-X. (1988). Holocene foraminifera in Hong Kong and their palaeoenvironmental significance. <em>In: The palaeoenvironment of east asia from the mid-tertiary, Proceedings of the Second International Conference on the Paleoenvironment of East Asia, Vol. II: Oceanography, Palaeozoology and Palaeoanthropology (eds. Whyte, P. Aigner, J.S., Jablonski, N.G., Taylor, G., Walker, D., Pinxian, W. & So, C.-L.), Centre of Asian Studies, University of Hong Kong.</em> 787-809.[details] Available for editors [request]
additional sourceLiu, J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. <em>China Science Press.</em> 1267 pp. (look up in IMIS) [details] Available for editors [request]
additional sourceZenetos, A., S. Gofas, M. Verlaque, M. Cinar, J. Garcia Raso, C. Bianchi, C. Morri, E. Azzurro, M. Bilecenoglu, C. Froglia, I. Siokou, D. Violanti, A. Sfriso, G. San Martin, A. Giangrande, T. Katagan, E. Ballesteros, A. Ramos-Espla, F. Mastrototaro, O. Ocana, A. Zingone, M,. Gambi & N. Streftaris. (2010). Alien species in the Mediterranean Sea by 2010. A contribution to the application of European Union's Marine Strategy Framework Directive (MSFD). Part I. Spatial distribution. <em>Mediterranean Marine Science.</em> 11(2): 381-493., available online athttps://doi.org/10.12681/mms.87[details]
additional sourcePrazeres, M.; Morard, R.; Roberts, T. E.; Doo, S. S.; Jompa, J.; Schmidt, C.; Stuhr, M.; Renema, W.; Kucera, M. (2020). High dispersal capacity and biogeographic breaks shape the genetic diversity of a globally distributed reef‐dwelling calcifier. <em>Ecology and Evolution.</em> 10(12): 5976-5989., available online athttps://doi.org/10.1002/ece3.6335 note: Figure one caption: "the unaccepted species A. madagascariensis, which we consider here to be a subjective junior synonym of A. lobifera". [details] Available for editors [request]
additional sourceZenetos, A., E. Meric, M. Verlaque, P. Galli, C.F. Boudouresque, A. Giangrande, M. Cinar & M. Bilecenoglu. (2008). Additions to the annotated list of marine alien biota in the Mediterranean with special emphasis on Foraminifera and Parasites. <em>Mediterranean Marine Science.</em> 9(1): 119-165., available online athttps://doi.org/10.12681/mms.146[details] Available for editors [request]
Present Present in aphia/obis/gbif/idigbio Inaccurate Introduced: alien Containing type locality
From editor or global species database
Synonymy First it is important to understand that from a formal point of view (ICZN), Fornasini is the author of the species not d'Orbigny (nomen nudum). The authority should be Fornasini, 1903. [I voluntarly quoted all the nomina nuda from d'Orbigny (1826): "d'Orbigny in X, date" to garanty a certain "traceability" in the hope of avoiding more confusion.]
Therefore all the elements given by Fornasini (1903) are part of the definition of the species: d'Orbigny's unpublished figure and the reference to the figures of Brady: "La quale, evidentemente, è anch'essa inseparabile da l'A. lessonii ("thicker variety often more inequilateral" di Brady): https://archive.org/stream/rendicontodelle02unkngoog#page/n159/mode/2up
The "thicker variety often more inequilateral" of A. lessonii refers to the figure 5 and 6 plate 111 of Brady (1884), which Pamela Hallock Muller said to be A. lessonii (6 with a ?).
http://www.19thcenturyscience.org/HMSC/HMSC-Reports/Zool-22/htm/docd111.html
A. madagascariensis is not a nomen nudum but more than probably a subjective junior synonym of A. lessonii. In my opinion Larsen (1976) only focused on d'Orbigny's figures maybe not having Fornasini's publication? Le Coze (2019) pers. comm.
Comment by Pamela Harlock Muller (2019) pers. comm.:
"Pretty straightforward evidence of the variability in A. lessonii, isn't it!" [details]