Classification / Names
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Characiformes (Characins) >
Stevardiidae (Stevardiids) > Stevardiinae
Etymology: Chrysobrycon: Greek, chrysos = golden + Greek, ebryko = to bite; eliasi: The species is named as patronym in honor and memory to the late Elias Vanegas G., father of the senior author (J.V-R.) (Ref. 88954).
Eponymy: Elias Vanegas G was the senior author’s father. (Ref. 128868), visit book page.
Environment: milieu / climate zone / ระดับความลึก / distribution range
นิเวศวิทยา
; น้ำจืด ผิวน้ำ. Tropical; 12°S - 13°S, 69°W - 70°W
South America: Peru. Known from different localities of the río Madre de Dios basin and the upper río Manuripe basin, both flowing into the río Madeira basin, Peru (Ref. 88954).
ขนาด / น้ำหนัก / Age
วัยเจริญพันธุ์: Lm ? range ? - ? cm
Max length : 4.0 cm SL เพศผู้/กระเทย; (Ref. 88954); 4.4 cm (female)
Short description
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Chrysobrycon eliasi is distinguished from its congeners by the maxillary teeth, tricuspidates, bicuspidates, and conical, vs. all maxillary teeth tricuspidate to pentacuspidate in C. myersi and C. hesperus. Chrysobrycon eliasi also has the terminal lateral-line tube developed between caudal-fin rays 10-11 vs. absence of the terminal lateral-line tube in C. myersi and C. hesperus. Furthermore, Chrysobrycon eliasi differs from C. hesperus by the presence of 6-15 (mode = 11; n = 28) maxillary teeth occupying more than 70% of the length of the maxilla in adults, vs. maxilla with 2-9 teeth (mode = 3; n = 11) occupying less than 70% of its length in adults, and a lower number of predorsal scales 18-22 (mode = 19; n = 28) vs. 22-23 (mode = 22; n = 11), respectively. Chrysobrycon eliasi is also readily differentiated from C. myersi by a smaller dorsal-fin to hypural complex length 36.32-41.17% SL vs. 42.19-47.38% SL; smaller gill-gland length in males, 3.57-5.05% SL vs. 6.52-6.66% SL; shorter maxillary length, 33.76-38.75% HL vs. 39.85-48.28% HL; and a lower number of branched anal-fin rays, 24-30 vs. 33-36. Chrysobrycon eliasi has a different pattern of scales near to the pouch scale of males; the additional small scale is set under the pouch scale and its ventral border is not seen in the lateral view (Ref. 88954).
Life cycle and mating behavior
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | เซลสืบพันธ์ของเพศเมีย(ไข่) | ความดกของไข่ | ตัวอ่อน
Vanegas-Ríos, J.A., M.d.l.M. Azpelicueta and H. Ortega, 2011. Chrysobrycon eliasi, new species of stevardiine fish (Characiformes: Characidae) from the río Madre de Dios and upper río Manuripe basins, Peru. Neotrop. Ichthyol. 9(4):731-740. (Ref. 88954)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
เครื่องมือ
Special reports
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Estimates based on models
Phylogenetic diversity index (อ้างอิง
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00443 - 0.02057), b=3.06 (2.88 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
ระดับชั้นอาหาร (อ้างอิง
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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