Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Temperate; 36°N - 32°N
North America: upper Rio Grande (above El Paso, Texas), Texas and New Mexico and in the Pecos River, New Mexico, USA. Has disappeared over much of its former range, apparently due to reduced water levels in the Rio Grande system (Ref. 3881).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm TL male/unsexed; (Ref. )
Inhabits the main channels of the Rio Grande and Pecos River usually over sand or gravel. With two subspecies: N. s. simus known from Rio Grande above El Paso, Texas, but now possibly extinct; N. s. pecosensis known only in the Pecos River, New Mexico, recognized as a threatened subspecies (Ref. 5723).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stout, C., S. Schönhuth, R. Mayden, N.L. Garrison and J.W. Armbruster, 2022. Phylogenomics and classification of Notropis and related shiners (Cypriniformes: Leuciscidae) and the utility of exon capture on lower taxonomic groups. PeerJ 10 (art. e14072):1-23. (Ref. 131297)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Endangered (EN) (B1ab(i,ii,iii)c(i,ii,iv)+2ab(i,ii,iii)c(i,ii,iv)); Date assessed: 20 September 2018
Threat to humans
Harmless
Human uses
Tools
Special reports
Download XML
Internet sources