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ກຸ່ມປາກະດູກອ່ອນ (ເຊັ່ນ: ປາສະຫລາມ, ປາຜາໄລ) (sharks and rays) > Myliobatiformes (Stingrays) > Potamotrygonidae (River stingrays) > Potamotrygoninae
Etymology: Paratrygon:Greek, para in the side of + Greek, trygon = a sting ray (Ref. 45335); lucindai:Name 'lucindai' in honor of Dr. Paulo Lucinda, Professor of the Universidade Federal do Tocantins (UFT), who kindly received the author in his laboratory and provided and loaned a considerable number of specimens of this endemic species of Paratrygon from the Tocantins River.
This species is distinguished from its congeners by the following set of characters: dorsal disc coloration varying from gray and dark gray to brown, dark brown and reddish brown and characterized; presence of large, round spots of beige, gray, brown, dark brown or reddish brown color throughout the disc, two to three times the diameter of the spiracle; spiracles small and rounded, mean spiracle length 4.4% DW (2.8-6.4% DW) with small and globular spiracular process; dermal denticles on the central disc with small, narrow and slightly higher crowns with a well developed central coronal plate of quadrangular shape, surrounded by three to six smaller and conical lateral coronal ridges; junction of four canals with the anterior end positioned more externally than the posterior end, with infraorbital and supraorbital canals connected at the anterior end, and hyomandibular and nasal canals connected at the posterior end; and posterior end of the frontoparietal component of the fontanelle straight to slightly oval (Ref. 138774). Body shape (shape guide): other (see remarks); Cross section: flattened.
Loboda, T.S., 2026. Four new species of neotropical freshwater stingrays of the genus Paratrygon (Myliobatiformes:Potamotrygonidae) from clear waterrivers of the Amazon basin. Neotrop. Ichthyol. 24(1):1-80. (Ref. 138774)
ສະຖານະພາບບັນຊີແດງຂອງ IUCN (Ref. 130435: Version 2025-2 (Global))
