Classification / Names
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Characiformes (Characins) >
Anostomidae (Headstanders)
Etymology: Leporinus: Latin, lepus, leporis = rabbit (Ref. 45335); arimaspi: Named after the mythical Arimaspi people of northern Scythia in Greek mythology. The large black spot on the midlateral portion of the body in this new species is reminiscent of the single, pronounced, centrally located eye that the Arimaspi people were said to possess. A noun in apposition.
Eponymy: The Arimaspi in Greek legend were a mythical people of northern Scythia. The name was conferred due to the large black spot on the fish’s body, reminiscent of the single, centrally located eye that the Arimaspians were said to have. (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
นิเวศวิทยา
; น้ำจืด กลุ่มสัตว์หน้าดิน,กลุ่มสัตว์พื้นท้องน้ำ. Tropical
South America: throughout the Río Orinoco drainage in Venezuela, including the ríos Caura, Pamoni, Casiquiare, Manapiare, and Ventuari.
ขนาด / น้ำหนัก / Age
Maturity: Lm ? range ? - ? cm
Max length : 19.0 cm SL เพศผู้/กระเทย; (Ref. 96504)
Short description
เครื่องมือที่ใช้ในการแยกชนิดสัตว์,สิ่งมีชีวิตออกจากกัน | สัณฐานวิทยา | ความยาวต่างๆ
ก้านครีบอ่อนที่หาง (รวม) : 12; ก้านครีบอ่อนที่ก้น: 10; สัตว์มีกระดูกสันหลัง: 38. Leporinus arimaspi is distinguished from all other congeners except L. aripuanaensis, L. amazonicus, L. apollo, L. cylindriformis, L. niceforoi, and L. ortomaculatus by the combination of an extremely dorsoventrally slender body (body depth immediately anterior to the dorsal-fin origin of 19-27% SL, versus 29% SL or greater) and the pigmentation pattern consisting of one or more dark spots centered along the lateral-line scale row. It differs from L. apollo, L. cylindriformis, L. niceforoi, and L. ortomaculatus by the lack of the dark spot along the lateral-line posterior to the dorsal-fin insertion and anterior to the adipose-fin origin (vs. presence of an intense dark spot). It further differs from L. apollo and L. cylindriformis by having five upper transverse scale rows (vs. six in most specimens), and four lower transverse scale rows (vs. five in most specimens), and from L. ortomaculatus by the absence of rows of spots dorsal and ventral to the lateral-line scale row (vs. presence); from L. amazonicus by having 37- 40 total scales on lateral line (vs. 43–45), 38 vertebrae (vs. 41), and four lower transverse scale rows at the pelvic-fin insertion (vs. 5 in most specimens). It is readily distinguished from the most similar species, L. aripuanaensis, by the absence (or faint presence) of a circular dark spot over the hypural plate (vs. presence of an intensely pigmented dark spot in that position). It can be further diagnosed from L. aripuanaensis by having 12 modal predorsal scales (vs. 11), as well as the following morphometrics in specimens between 7.0 and 9.2 cm SL: interorbital width 34-44% HL (vs. 29-34% HL) and eye diameter 29-34% HL (vs. 25-30% HL) (Ref. 96504).
Found in rivers. Some specimens were collected near bedrock outcroppings and banks (Ref. 96504).
Life cycle and mating behavior
วัยเจริญพันธุ์ | การสืบพันธุ์ | การวางไข่ | เซลสืบพันธ์ของเพศเมีย(ไข่) | ความดกของไข่ | ตัวอ่อน
Burns, M.D., B.W. Frable and B.L. Sidlauskas, 2014. A new species of Leporinus (Characiformes: Anostomidae), from the Orinoco Basin, Venezuela. Copeia 2014(2):206-214. (Ref. 96504)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
เครื่องมือ
Special reports
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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=0.01000 (0.00446 - 0.02243), b=3.04 (2.87 - 3.21), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
ระดับชั้นอาหาร (Ref.
69278): 2.4 ±0.1 se; based on size and trophs of closest relatives
ความสามารถในการกลับคืนสู่ปกติ (Ref.
120179): ขนาดกลาง, เวลาต่ำสุดที่จะทำให้ประชากรเพิ่มขึ้นเป็น 2 เท่าใช้เวลา 1.4 - 4.4 ปี (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (13 of 100).
