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Squalius caetobrigus Mendes, Perea, Sousa, Sousa-Santos & Doadrio, 2024 Sado chub Sado chub |
| Family: | Leuciscidae (Minnows), subfamily: Leuciscinae | |||
| Max. size: | 10.4 cm SL (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | Europe: Portugal. | |||
| Diagnosis: | Dorsal spines (total): 3-3; Dorsal soft rays (total): 8-8; Anal spines: 3-3; Anal soft rays: 8-8. This species is distinguished from its congeners by the following set of characters: 39-42 canaliculate scales on the lateral line; 6-7 scales above the lateral line; 3-4 scales below the lateral line; short preorbital distance short (HL/PrOL is 4.2-6.2); absence of contact between the fourth infraorbital bone and the preopercular; short dentary with a very developed coronoid process. long and thin posterior process of the maxilla; long and thin lower branch of the pharyngeal bone; small pharyngeal plate of the pharyngeal bone (Ref. 133018). | |||
| Biology: | ||||
| IUCN Red List Status: | Not Evaluated (N.E.) Ref. (130435) | |||
| Threat to humans: | harmless | |||