分類 / Names
共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
板鰓亜鋼(サメとエイ類) (sharks and rays) >
Myliobatiformes (Stingrays) >
Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Paratrygon: Greek, para in the side of + Greek, trygon = a sting ray (Ref. 45335); orinocensis: Named for its type locality, Orinoco basin; a toponym..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical
South Anerica: Colombia.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 58.4 cm TL オス/雌雄の選別がない; (Ref. 125391)
簡単な記述
形態学 | 形態計測学
This species is distinguished from its congeners by the following set of characters: lateral rows of thorns on tail absent (vs. present); dermal denticles on the central region of the disc have wide and high crowns, presenting a central coronal plate very similar morphologically to its lateral coronal ridges, which in adults can be more than 12 (vs. small dermal denticles on the central disc, with high and narrow crowns presenting higher and pointed central coronal plates surrounded by minor, pointed or rounded lateral coronal ridges, which in turn vary between three and six); teeth 22-35/20-29 (vs.16-26/14-20 in aiereba and 31/19-22 parvaspina); central teeth with more developed and high cusps than aiereba, parvaspina; spiracles are small and triangular, with mean length 5.6% DW [4.5-7.9% DW] (vs. quadrangular and larger spiracles in aiereba with mean length 6% DW [4.4-11.6% DW], and very small and quadrangular spiracles in parvaspina with mean length 5.2% DW [4.9-5.8% DW]; with a short and straight spiracular process with developed and numerous dermal denticles (vs. larger and knob shaped spiracular process that almost covers the spiracle aperture and with some small dermal denticles in aiereba, and an extremely short and reduced spiracular process in parvaspina that is more perceptible in adult specimens, with few dermal denticles); with a minute rostral projection (vs. with a relatively large rostral projection in aiereba, and with a large and circular rostral projection in parvaspina) (Ref. 125391).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Loboda, T.S., C.A. Lasso, R. de Souza Rosa and M.R. de Carvalho, 2021. Two new species of freshwater stingrays of the genus Paratrygon (Chondrichthyes: Potamotrygonidae) from the Orinoco basin, with comments on the taxonomy of Paratrygon aiereba. Neotrop. Ichthyol. 19(2). (Ref. 125391)
Human uses
より多くの情報
共通名の類義語代謝捕食動物生態毒性繁殖成熟放精卵の集合体生産力卵卵の開発
Age/Size成長体長-重さLength-length体長組成形態計測学形態学幼生幼生の動力補充豊度BRUVS
参考文献水産養殖水産養殖の紹介緊張遺伝子のElectrophoreses遺伝病気行列NutrientsMass conversion
協力者画像Stamps, Coins Misc.音シガテラ（食中毒の名前）速度泳ぐ 型式カマOtoliths脳視覚
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Moderate vulnerability (43 of 100).
