Notropis simus
Threatened
Collection Details
Specimens
Photos
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Records
Taxonomic Hierarchy
Actinopterygii (Ray-finned Fishes)
Cypriniformes (Carps and Minnows)
Cyprinidae (Carps and Minnows)
Notropis
Notropis simus
Description
This species account was compiled from
FishBase (Froese, R. and D. Pauly. Editors. 2025. FishBase. World Wide Web electronic publication. www.fishbase.org, version 04/2025.)
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Characters
Body shape: fusiform / normal.
Distribution
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).
Habitat Associations
Freshwater. benthopelagic.
Biology
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).
Max length: 10.0 cm TL.
Reproductive mode: dioecism; fertilization: external; nonguarders.
IUCN Red List Status: Endangered (EN), assessed 2018-09-20. Resilience: High (Preliminary K or Fecundity.).
References
Riehl, R. and H.A. Baensch (1991) Aquarien Atlas. Band. 1. Melle: Mergus, Verlag für Natur-und Heimtierkunde, Germany. 992 p.
Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott (1991) Common and scientific names of fishes from the United States and Canada. Am. Fish. Soc. Spec. Publ. (20):183 p.
IUCN (1990) 1990 IUCN red list of threatened animals. IUCN, Gland, Switzerland and Cambridge, U.K. 288 p.
Comments On Notropis simus