Mesensis tube-snouted ghost knifefish (Sternarchorhynchus mesensis)

Scientific name: Sternarchorhynchus mesensis Campos-da-Paz, 2000

The Mesensis tube-snouted ghost knifefish (Sternarchorhynchus mesensis) is a freshwater fish of the family Apteronotidae. Native range: South America, Tocantins River basin.

Biology

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 171 - 189; Vertebrae: 80 - 110. Distinguished from its congeners by the following combination of features: mouth length 5.4-6.4 %HL; postocular distance 36.4-41.0 %HL; pectoral fin length 27.0-35.3 %HL; scales always present above lateral line at anterodorsal region of body, in 11-13 rows above lateral line at midbody; anterior unbranched anal-fin rays 23-28; and a white to yellowish-white (sometimes indistinct) band on frontal portion of head and middorsum; caudal fin with 13-15 rays.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Sternarchorhynchus mesensis
Family
Apteronotidae (Ghost knifefishes)
Order
Gymnotiformes (Knifefishes)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
24.9
Environment
Freshwater; benthopelagic
Climate
Tropical
Distribution
South America: Tocantins River basin.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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