Macrobrachium denticulatum Ostrovski, Da Fonseca & Da Silva-Ferreira, 1996
Taxonomy & Nomenclature
The utility of morphological characters for distinguishing M. denticulatum from its congener M. olfersii has been diminished, but it is still a good species based upon molecular data (see Cardim et al., 2025). The type species of the genus, M. americanum Bate, 1868 is likely not valid (see Pileggi & Mantelatto, 2010).
Conservation Status
Missing (De Grave & Mantelatto, 2013b)
Last record: 1995 (De Grave et al., 2015)
IUCN RedList status: Critically Endangered (Possibly Extinct)
Distribution & Habitat
São Francisco River and its tributaries, northeastern Brazil
Considered endemic to the São Francisco Basin (Ostrovski et al., 1996; Cardim et al., 2025).
Biology & Ecology
Hypodigm
Media
References
Original scientific description:
Ostrovski, M. C., Da Silva-Ferreira, T. C. G. and Da Fonseca, K. M. L. (1996). Macrobrachium denticulatum sp. n. a new species of shrimp from the São Francisco Basin, northeastern Brazil (Decapoda, Palaemonidae). Crustaceana 69(3): 359-367. https://doi.org/10.1163/156854096X00952
Other references:
Cardim, Robert Wagner Dos Santos, Mota, Thaís Arrais and Carvalho, Fabrício Lopes. (2025). Taxonomic assessment of the shrimp Macrobrachium denticulatum Ostrovski, da Fonseca & da Silva-Ferreira, 1996 (Decapoda: Palaemonidae) using molecular and morphological data: a comparison with M. olfersii (Wiegmann, 1836). Zootaxa 5631(3): 475-494. https://doi.org/10.11646/zootaxa.5631.3.3
De Grave, S. and Fransen, C. H. J. M. (2011). Carideorum catalogus: the recent species of the dendrobranchiate, stenopodidean, procarididean and caridean shrimps (Crustacea: Decapoda). Zoologische Mededelingen, Leiden. 85(9): 195-589.
De Grave, S. and Mantellato, F. (2013a). Macrobrachium denticulatum. The IUCN Red List of Threatened Species. Version 2014.3. (http://www.iucnredlist.org). Downloaded on 29 March 2015.
De Grave, S. and Mantelatto, F. (2013b). Macrobrachium denticulatum (errata version published in 2016). The IUCN Red List of Threatened Species 2013: e.T197644A107026068. https://dx.doi.org/10.2305/IUCN.UK.2013-1.RLTS.T197644A2494231.en. Accessed on 20 August 2025.
De Grave S, Smith KG, Adeler NA, Allen DJ, Alvarez F, Anker A, et al. (2015). Dead Shrimp Blues: A Global Assessment of Extinction Risk in Freshwater Shrimps (Crustacea: Decapoda: Caridea). PLoS ONE 10(3): e0120198.
De Melo, G. A. S. (ed.). (2003). Manual de identificacao dos crustacea decapoda de agua doce do Brasil. In: C. Magalhaes, G. Bond-Buckup, G.A.S. De Melo, L. Buckup (ed.), Edicoes Loyola: Centro Universitario Sao Camilo: Museo de Zoologia, Universidade de Sao Paulo, Sao Paulo.
Nascimento, J. S. (2018). Variabilidade morfológica dos caracteres diagnósticos dos camarões Macrobrachium denticulatum Ostrovski, da Fonseca & da Silva-Ferreira, 1996 e Macrobrachium olfersii (Wiegmann, 1836). Trabalho de conclusão de curso - Universidade Federal do Sul da Bahia, Ilhéus.
Pileggi, Leonardo G. and Mantelatto, Fernando L. (2010). Molecular phylogeny of the freshwater prawn genus Macrobrachium (Decapoda, Palaemonidae), with emphasis on the relationships among selected American species. Invertebrate Systematics 24(2): 194-208. https://doi.org/10.1071/IS09043
WoRMS. (2021). Macrobrachium denticulatum Ostrovski, Da Fonseca & Da Silva-Ferreira, 1996. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=587185 on 2021-10-31
https://extinctanimals.proboards.com/thread/19307/macrobrachium-denticulatum