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Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes) > Eigenmanninae
Etymology: Eigenmannia: From Eigenmann, 1910, researcher of faunistic studies (Ref. 45335); desantanai: Named desantanai in honour of Carlos David de Santana, in recognition of his contributions to our knowledge of the Gymnotiformes (Ref. 115689).
Eponymy: Professor Dr Carl Henry Eigenmann (1863–1927) was a German-born American ichthyologist. [...] Dr Carlos David de Santana is a Brazilian ichthyologist who is presently a post-doctoral fellow at the Smithsonian. [...] (Ref. 128868), visit book page.
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical
South America: currently only known from Rio Cuiabá, Rio Paraguay basin, Mato Grosso, Brazil.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 18.6 cm TL पुल्लिंग / अलिंग; (Ref. 115689)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
ऐनल सौफट रेज़: 170 - 198. Diagnosis: Eigenmannia desantanai can be distinguished from other species in the E. trilineata species group by the inferior medial stripe, which is 1 scale deep (versus 2 or 3 scales deep); Eigenmannia desantanai can be further distinguished from the other members of the species group, except for E. waiwai, by the 11 or 12 precaudal vertebrae (versus 13 or 14 in E. antonioi; 15 in E. guairaca, E. muirapinima, and E. vicentespelaea; 13 in E. matintapereira; 14 or 15 in E. microstoma and E. trilineata; and 13–15 in E. pavulagem); Eigenmannia desantanai can be differentiated from E. waiwai by the terminal mouth (versus subterminal); the orbital diameter 14.5– 19.6% HL (versus 22.6–28.8%); the length of the anterodorsal process of the maxilla equal to 50% of the width of the posterior nostril (versus 1.5 times the width of the posterior nostril); the depth of the posterodorsal expansion on infraorbitals 1 + 2 approximately equal to the total length of infraorbitals 1 + 2 (versus less than 50% of the length of infraorbitals 1 + 2); and by the dentition pattern of the dentary with 21–23 teeth distributed in 2 rows (outermost row with 10 to 12 teeth; innermost row with 9 to 13 teeth) [versus 37 or 38 teeth distributed in 4 rows (outermost row with 7 teeth; 2nd with 11–15 teeth; 3rd with 8 to 15; innermost row with 4 to 8 teeth)] (Ref. 115689).
Body shape (shape guide): elongated.
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Peixoto, L.A.W., G.M. Dutra and W.B. Wosiacki, 2015. The electric glass knifefishes of the Eigenmannia trilineata species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. Zool. J. Linn. Soc. 175:384-414. (Ref. 115689)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
मात्स्यिकी: कोई रुचि बग़ैर
साधन
विशेष रिपोर्ट
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इंटरनेट स्रोत
मॉडल पर आधारित अनुमान
जातिवृति विविधता सूचकांक (संदर्भ
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00161 - 0.00782), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
मछली पकड़ने की भेद्यता (Ref.
59153): Low vulnerability (10 of 100).
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