| Sternopygidae (Glass knifefishes) |
| 56 cm TL (male/unsexed); max.weight: 250.0 g |
|
benthopelagic; freshwater; pH range: 3 - 6 |
| South America: main stem of Amazon River, lower Negro River basin in Brazil. |
|
Dorsal spines (total): 0-0; Dorsal soft rays (total): 0-0; Anal soft rays: 195-312. Body and head of living specimens uniformly black or very dark purple-brown with no humeral spot or patch; juveniles undergo striking pigmentation change from uniformly black by day to very pale with two distinct vertical saddle-like markings at night; dorsal margin of head well rounded (very convex) in adults (Ref. 52797).
Description: Caudal fin absent. |
| Inhabits blackwater rivers and their seasonally inundated floodplain lakes and forests (Ref. 52797). Feeds on invertebrates (Ref. 52797). |
|
Least Concern (LC); Date assessed: 03 December 2020 Ref. (130435)
|
| harmless |
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