| Family: |
Hypopomidae (Bluntnose knifefishes) |
| Max. size: |
15.38 cm TL (male/unsexed) |
| Environment: |
benthopelagic; freshwater; pH range: 6 - 7.8 |
| Distribution: |
South America: tributaries of the middle Río Uruguay and Los Patos-Merín system basin in Uruguay. |
| Diagnosis: |
Anal soft rays: 155-190. Can be differentiated from all congeners by the following combination of characters: pigmentation pattern of body consisting of scattered dark brown pigmentation over a brown
background, more dense on the dorsal half of the body; epidermal laterosensory canals
pigmented; head depth 61.8-76.4% of HL; caudal filament length 6.5-16.6% of ; 55-190 anal-fin rays; fourth supraorbital pore dorsal and half-way between posterior nares and anterior
margin of orbit; upper jaw slightly longer than lower jaw; a cartilaginous mesocoracoid; slender anterodorsal process of the maxilla; all branchiostegal rays of equal size, none hook-like (Ref. 75964).
Description: Dorsal, pelvic and caudal fins absent (Ref. 75964). |
| Biology: |
Occurs in swamps, slow moving river edges and standing water, often with dense vegetation (Ref. 75964). |
| IUCN Red List Status: |
Least Concern (LC); Date assessed: 27 August 2020 Ref. (130435)
|
| Threat to humans: |
harmless |
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