Classification / Names
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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); rectiventer: Dervied from the Latin rectus, meaning straight, and venter, meaning belly. This is in reference to the straight ventral profile of the body in males, a condition unique in Cynolebias..
Environment: milieu / climate zone / depth range / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल; गहराई सीमा 1 - ? m (Ref. 97357). Tropical
South America: Verde River floodplain, São Francisco River Basin in Brazil.
आकार / वज़न / Age
Maturity: Lm ? range ? - ? cm
Max length : 10.2 cm SL पुल्लिंग / अलिंग; (Ref. 97357); 8.1 cm SL (female)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
पृष्ठीय सौफट रेज़ (सम्पूर्ण) : 15 - 20; ऐनल सौफट रेज़: 18 - 21; जानवरों की रीड़ का जोड़: 35 - 37. Cynolebias rectiventer can be diagnosed from all species of C. perforatus group by the following characters: contact organs restricted to the seven uppermost rays of the pectoral fin in males (vs. contact organs on all rays); ventral process on the autopalatine present (vs. absent); scales absent on the base of the dorsal fin (vs. present); gill rakers slightly curved (vs. bowed); denticles situated on the gill-raker margin (vs. on the entire region); less than one third of caudal fin anteriorly covered by scales (vs. more than one third). It also differs from all congeners by having approximately straight lateral profile of the abdominal region in males (vs. convex) (Ref. 97357).
Found in two adjacent and shallow temporary lagoons of about 1.0 m deep with an area of about 5 km2, within a small farm for cattle breeding, and with sparse aquatic vegetation. Collected close to the lagoon bottom (Ref. 97357).
Life cycle and mating behavior
Maturities | पुनरुत्पत्ति | Spawnings | Egg(s) | Fecundities | लार्वा
Costa, W.J.E.M., 2014. Six new species of seasonal killifishes of the genus Cynolebias from the São Francisco river basin, Brazilian Caatinga, with notes on C. porosus (Cyprinodontiformes: Rivulidae). Ichthyol. Explor. Freshwat. 25(1):79-96. (Ref. 97357)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00396 - 0.02008), b=3.14 (2.94 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 se; based on size and trophs of closest relatives
लौटाव (Ref.
120179): ऊंचा, न्यूनतम जनसंख्या दुगनी समय अवलागत 15 महीने। (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
