MolluscaBase taxon details
original description
(of Unio sphenorhynchus Crosse & P. Fischer, 1894) Crosse, H. & Fischer, P. (1894). Diagnoses molluscorum novorum, Reipublicae Mexicanae incolarum. <em>Journal de Conchyliologie.</em> 41(4): 293-297., available online at http://biodiversitylibrary.org/page/15861916 page(s): 296 [details]
original description
(of Unio (Nephronaias) ortmanni Frierson, 1913) Frierson, L. S. (1913). <i>Unio</i> (<i>Nephronaias</i>) <i>ortmanni</i>, n. sp. <em>The Nautilus.</em> 27(2): 14-15, pl. 2., available online at https://www.biodiversitylibrary.org/page/1752527 [details]
original description
(of Unio (Sphenonaias) acutirostris E. von Martens, 1900) Martens, E. von. (1890-1901). Biologia Centrali-Americana. Land and freshwater Mollusca. London: Francis & Taylor, xxviii + 706 pp., 44 pls. [1890: pp. 1-40, pl. 1; 1891: pp. 41-96, pls. 2-5; 1892: pp. 97-176, pls. 6-9; 1893: pp. 177-248, pls. 10-12; 1894: pls. 13-15; 1897: pp. 249-288, pl. 16; 1898: pp. 289-368, pls. 17-20; 1899: pp. 369-472, pls. 21-28; 1900: pp. 473-608, pls. 29-41; 1901: pp. 609-706 + xxviii, pls. 42-44]. <em>Biologia Centrali-Americana.</em> 9: 473-608, plates 28-44., available online at https://biodiversitylibrary.org/page/573268 page(s): 480, 484, 490 [details]
basis of record
Graf, D.; Cummings, K. (2019). Musselp database: The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). , available online at http://mussel-project.uwsp.edu/ [details]
From editor or global species database
Distribution Mexico [details]
Spelling The specific epithet sphenorhynchus is a noun in apposition and does not agree in gender with the combining genus. [details]
Type locality Mexico (without exact locality) [details]
From editor or global species database
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