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Sternarchogiton zuanoni  de Santana & Vari, 2010

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Sternarchogiton zuanoni
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drawing shows typical fish in this Family.

Classification / Names Noms communs | Synonymes | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinoptérygiens (poissons à nageoires rayonnées) > Gymnotiformes (Knifefishes) > Apteronotidae (Ghost knifefishes)
Etymology: Sternarchogiton: Greek, sternon = sternon, + Greek, archos = anus + Greek, geiton, -onos = neighbour (Ref. 45335);  zuanoni: Jansen Zuanon of the Instituto Nacional de Pesquisas da Amazoˆnia, who has contributed enormously to our knowledgeof the ecology and taxonomy of fishes from the Amazon basin (Ref. 83662).   More on author: Vari.

Environnement / Climat / Gamme Écologie

; eau douce démersal.   Tropical, preferred ?; 3°S - 4°S, 52°W - 53°W

Distribution Pays | Zones FAO | Écosystèmes | Occurrences | Point map | Introductions | Faunafri

The single known sample of Sternarchogiton zuanoni originated in the rapids and waterfalls of Cachoeira de Kaituká in the Município de Altamira along the lower Rio Xingu in the eastern portions of the Amazon basin (Ref. 83662).

Taille / Poids / Âge

Maturity: Lm ?  range ? - ? cm
Max length : 17.8 cm TL mâle / non sexé; (Ref. 83662)

Description synthétique Morphologie | Morphométrie

Sternarchogiton zuanoni is diagnosed from S. labiatus in the number of total anal-fin rays (129–153 versus 156–168, respectively), the interorbital width (28.8–39.4% of HL versus 19.5–24.6%, respectively), the body depth (13.3–17.3% of LEA versus 10.3–12.0%, respectively), the coloration of the anal fin (completely hyaline versus the presence of scattered brown speckling and a dark distal margin, respectively), the form of the lower lip (unelaborated versus the presence of a prominent tri-lobed structure, respectively), and the number of rows of conical teeth on the dentary (one versus two rows, respectively). Sternarchogiton zuanoni is distinguished from S. nattereri in the number of total anal-fin rays (129–153 versus 180–198, respectively), the interorbital width (28.8–39.4% of HL versus 19.9–27.6%, respectively), the length of the caudal appendage (22.4– 30.7% of LEA versus 14.6–20.4%, respectively), and the premaxillary dentition (teeth absent versus present in some sexually dimorphic males, respectively). Sternarchogiton zuanoni is diagnosable from S. porcinum in the number of total anal-fin rays (129–153 versus 182–216, respectively), the interorbital width (28.8–39.4% of HL versus 18.8–23.9%, respectively), the head width (46.2–57.3% of HL versus 39.1– 44.6%, respectively), the orbital diameter (9.3–14.1% of HL versus 4.5–7.7%, respectively), the coloration of the pectoral and anal fins (completely hyaline versus with black margins, respectively), and the dorsal profile of the head (distinctly convex versus straight or slightly convex, respectively). Sternarchogiton zuanoni is distinguished from S. preto in the number of total anal-fin rays (129–153 versus 189– 210, respectively), the interorbital width (28.8–39.4% of HL versus 17.8–25.9%, respectively), the orbital diameter (9.3– 14.1% of HL versus 2.9–8.3%, respectively), the coloration of the pectoral and anal fins (completely hyaline versus with black margins, respectively), and the premaxillary dentition (teeth absent versus present, respectively) (Ref. 83662).

Biologie     Glossaire (ex. epibenthic)

Life cycle and mating behavior Maturité | Reproduction | Frai | Œufs | Fécondité | Larves

Référence principale Upload your references | Références | Coordinateur : Albert, James S. | Collaborateurs

de Santana, C. D. and R. P. Vari, 2010. New rheophilic species of electric knifefish from the rapids and waterfalls of the Lower Rio Xingu, Brazil (Gymnotiformes: Apteronotidae). Copeia 2010(1):160-164. (Ref. 83662)

Statut dans la liste rouge de l'IUCN (Ref. 115185)

  Non évalué 

CITES (Ref. 94142)

Not Evaluated

Menace pour l'homme

  Harmless




Utilisations par l'homme

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