, is described based on seven specimens (17.9-26.7 mm SL) from the Río Concepción (also known as Río Magdalena), Sonora, Mexico. The new species belongs to the species group and can be distinguished from other members of this group by features of the skeleton and colouration. The new species is sympatric with , a hybridogenetic all-female biotype , and hybrids between females and males. The distribution of is highly restricted, and the main habitat, spring-fed marshy streams and pools, is susceptible to loss and degradation in a desert environment with increasing human water demand.
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Source |
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6828827 | PMC |
| http://dx.doi.org/10.3897/zookeys.883.37586 | DOI Listing |
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