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Cyprinodontiformes (Rivulines, killifishes and live bearers) >
Rivulidae (Rivulines) > Cynolebiinae
Etymology: Cynolebias: Greek, kyon = dog + Greek, odous = teeth + Greek, lebias = a kind of small fish (Ref. 45335).
पर्यावरण: पर्यावरण / जलवायु क्षेत्र / गहराई सीमा / वितरण सीमा
पारिस्थितिकी
; स्वच्छ जल, अलवण जल बेनथोपिलाजिक. Tropical
South America: Verde Grande River drainage, Bahia, Brazil.
आकार / वज़न / आयु
परिपक्व अवधि: Lm ? range ? - ? cm
Max length : 3.8 cm SL पुल्लिंग / अलिंग; (Ref. 118117); 3.7 cm SL (female)
संक्षिप्त वर्णन
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
Cynolebias elegans is similar to other members of the C. gilbertoi group (C. gilbertoi and C. ochraceus) and distinguished from all other species of the subgenus Cynolebias, by having 19-16 vomerine teeth (vs. 1-4, when teeth are present), 7-8 gill-rakers on the ventral part of the first branchial arch (vs. 9-12), highest body depth at vertical just anterior to base of pelvic fin (vs. through base of pecto¬ral fin), and flank with light dots arranged in vertical groups (vs. light dots when present not arranged in vertical groups). It can be diagnosed from C. gil¬bertoi and C. ochraceus by possessing long dorsal and anal fins in males, their extremities excluding filaments posteri¬orly reaching base of caudal fin (vs. reaching caudal pedun¬cle), greater pre-pelvic length in males (52.2-53.9 % SL, vs. 48.5-49.9 % SL in C. gilbertoi and 48.9-50.5 % SL in C. ochraceus), and first proximal radial of the anal fin between neural spines of 9th and 10th vertebrae in males, and between neural spines of 11th and 12th vertebrae in females (vs. between neural spines of 11th and 13th verte¬brae in males, and between neural spines of 12th and 14th vertebrae in females). It can be further differentiated from C. gilbertoi by having the following characters: larger head (31.3-34.2 % SL in males, 32.1-33.4 % in females, vs. 27.9-30.3 % SL in males, 29.0-31.1 % in females) and smaller eye (25.5-29.1 % of head length in males, 27.3-29.9 % in fe¬males, vs. 30.0-31.0 % of head length in males, 31.5-34.2 % in females). It can be also distinguished from C. ochraceus by having 31-32 ver¬tebrae (vs. 33-34), narrower body depth (32.5-34.5 % SL vs. 35.0-37.8 % SL), and flank light pur¬plish brown in males (vs. light yellow ochre) (Ref. 118117).
Body shape (shape guide): fusiform / normal.
जीवन चक्र और संभोग व्यवहार
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | अंडे | उपजाऊपन | लार्वा
Costa, W.J.E.M., 2017. Description of two endangered new seasonal killifish species of the genus Cynolebias from the São Francisco River basin, Brazilian Caatinga (Cyprinodontiformes, Aplocheilidae). Zoosyst. Evol. 93(2):333-341. (Ref. 118117)
आईयूसीएन रेड लिस्ट स्थिति (Ref. 130435: Version 2025-2 (Global))
मनुष्यों के लिए ख़तरा
Harmless
मानव उपयोग
साधन
विशेष रिपोर्ट
XML डाउनलोड करें
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=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
ट्रॉफिक स्तर (संदर्भ
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
लौटाव (संदर्भ
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
मछली पकड़ने की भेद्यता (Ref.
59153): Low vulnerability (10 of 100).
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