| Family: |
Doradidae (Thorny catfishes), subfamily: Astrodoradinae |
| Max. size: |
15.07 cm SL (male/unsexed) |
| Environment: |
demersal; freshwater |
| Distribution: |
South America: upper Amazon basin, including the Rio Solimões and lower portions of its tributaries, such as the Juruá, Japurá, and Tefé rivers. |
| Diagnosis: |
Dorsal spines (total): 3-3; Dorsal soft rays (total): 6-6; Vertebrae: 34-34. Scorpiodoras calderonensis differs from its congeners S. heckelii and S. liophysus by having secondary gas bladder terminally extended by elongate diverticulum 'recurved like the whip of a scorpion' (vs. secondary gas bladder absent in S. liophysus and without elongate terminal diverticulum in S. heckelii). It is further distinguished from S. heckelii by having a relatively small eye, diameter 63-93% of interorbital width (vs. relatively large eye, diameter 91- 129% of interorbital width) and from S. liophysus by possessing relatively shallow scutes, depth 41-59% of body depth near anal-fin origin (vs. 61-72%) (Ref. 86601).
Description: anal fin iv-v,7-9 (Ref. 86601). |
| Biology: |
|
| IUCN Red List Status: |
Not Evaluated (N.E.) Ref. (130435)
|
| Threat to humans: |
harmless |
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