Cribroheros diquis
| Cribroheros diquis | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cichliformes |
| Family: | Cichlidae |
| Genus: | Cribroheros |
| Species: | C. diquis
|
| Binomial name | |
| Cribroheros diquis (Bussing, 1974)
| |
| Synonyms[2] | |
| |
Cribroheros diquis is a species of freshwater cichlid fish in the family Cichlidae, native and endemic to Costa Rica on the Pacific slope of the country's southeastern region. It is one of the recognized species in the genus Cribroheros, a group of Middle American cichlids.
Taxonomy and nomenclature
Cribroheros diquis was originally described in 1974 by ichthyologist William A. Bussing under the name Cichlasoma diquis,[3] based on specimens from Pacific-draining rivers in southeastern Costa Rica. Subsequent taxonomic revisions have placed it in several genera, including Astatheros and Amphilophus, before its current placement in Cribroheros.[4][2][5]
Description
Cribroheros diquis is a moderately sized cichlid, typically reaching about 11–14 cm in total length. It has a light straw-colored body with irregular darker bands dorsally and a pointed, robust snout. The dorsal fin may show a subtle reddish margin. It closely resembles Cribroheros alfari but can be differentiated by its paler coloration and a distinct dark spot beneath the pectoral fins.[2]
Distribution and habitat
This species is restricted to Pacific-draining river systems in southeastern Costa Rica, including river basins in the Puntarenas region and adjacent southern Pacific watersheds at elevations from about 16 to 700 m above sea level. It inhabits moderately to slowly flowing freshwater environments with sandy or muddy substrates.[4]
Ecology and behaviour
Cribroheros diquis is a benthopelagic sand-sifter, feeding by sifting organic materials and benthic invertebrates from the substrate. Its diet consists of small worms, crustaceans, insect larvae, snails, and detritus.[2]
References
- ^ Tim Lyons (Albuquerque Biopark, New Mexico); Rigoberto González (Smithsonian Tropical Research Institute) (2019-07-25). "IUCN Red List of Threatened Species: Cribroheros diquis". IUCN Red List of Threatened Species. Archived from the original on 2025-05-07.
- ^ a b c d "Cribroheros diquis - AquaInfo" (in Dutch). Retrieved 2026-02-07.
- ^ Bussing, William A. (1966-12-01). "New Species and New Records of Costa Rican Freshwater Fishes with a Tentative List of Species". Revista de Biología Tropical. 14 (2): 205–249. doi:10.15517/rev.biol.trop.1966.28534. ISSN 2215-2075. also available at http://repositorioslatinoamericanos.uchile.cl/handle/2250/7900320
- ^ a b Angulo, Arturo (2021-12-23). "Cribroheros diquis". Zenodo. doi:10.5281/zenodo.5821549.
- ^ Angulo, Arturo (2021-12-23). "New records and range extensions to the Costa Rican freshwater fish fauna, with an updated checklist". Zootaxa. 5083 (1): 1–72. doi:10.11646/zootaxa.5083.1.1. ISSN 1175-5334. PMID 35390941.