| Apteronotidae (Ghost knifefishes), subfamily: Apteronotinae |
| 15.2 cm TL (male/unsexed); 13.35 cm TL (female) |
|
benthopelagic; freshwater; pH range: 6.6 - 7.6 |
| South America: Lower Río Caroni, Venezuela. |
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Anal soft rays: 159-177. Distinguished from all congeners by the following combination of characters: snout strongly curved; head and mid-dorsum as dark as dorsolateral areas; anal and pectoral fins translucent, without conspicuous distal dark margins; scales present along anterodorsal region of body; 6-7 scales above lateral line at mid-body; 159-177 total anal-fin rays; five branchiostegal rays; greatest body depth 9.3-11.4% of length to end of anal fin; snout to anus 58.4-77.6% of length to end of anal fin; pre-pectoral fin length 34.8-41.0% of HL; snout length 57.6-65.4% of HL; head depth at nape 39.7-44.9% of HL; postocular distance 36.9-41.6% of HL; eye diameter 4.1-7.6% of HL; internarial distance 2.7-7.0% of HL; branchial opening 9.5-12.3% of HL; tail length 10.1-17.4% of length to end of anal fin; tail depth 8.3-13.8% of caudal length (Ref. 56955). |
| Inhabits channel with clear water (Ref. 56955); visibility of approximately 2 m and the pH ranging from 6.6-7.6 (Ref. 84053). Feeds on insects such as chironomids, ephemeropterans and trichopterans (Ref. 56955). |
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Critically Endangered (CR); Date assessed: 07 October 2020 (B1ab(iii)+2ab(iii)) Ref. (130435)
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| harmless |
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