Short Description
Diagnosis afterLoboda, 2026 [35912]: Paratrygon raonii can be distinguished from other Paratrygon species by the following combination of characters: the dorsal coloration of disc is gray, dark gray, light brown, brown, dark brown, or black with dark vermiculated, or axon-shaped spots that are evident and scattered throughout disc, with some specimens having light, rounded spots (vs. P. aiereba, P. orinocensis, P. parvaspina which have gray or light brown dorsal coloration and evident dark spots; P. lucindai with gray, dark gray, brown, and dark brown dorsal coloration that presents large, rounded, dark spots scattered throughout the disc; P. araguaia with a brown or dark brown dorsal disc that possesses two types of spots scattered throughout the disc with one type light, big, and rounded, while the other is dark, small, and vermiculated, occurring between the light ones; P.munduruku has a brown dorsal coloration with numerous small, dark brown spots in an axon or vermiculated format spread throughout the disc, not evident, and without withish spots); very small spiracles that are generally proportional to the eyes or slightly larger, in a quadrangular format, with a mean length of 4% DW (3.4–5% DW), and with pronounced spiracle process (vs. P. orinocensis has a spiracle that is larger than the eye an in a triangular format, with a mean length of 5.6% DW; P. aiereba, P. parvaspina, P. munduruku have a quadrangular spiracle with a mean length greater than 5% DW and a very reduced spiracle process; P. araguaia with rounded spiracles and a length greater than 5% DW; P. lucindai with small and rounded spiracles); denticles on the central disc have a high crown and present a detached, well developed central coronal plate with a pointed shape, and also have well developed lateral coronal ridges in the range of six to eight, which are pointed and lower than the central coronal plate (vs. P. aiereba has a crown of central dermal denticles that present a pointed central coronal plate and pointed to slightly rounded lateral coronal ridges in the range of three to six, P. orinocensis has denticles that possess a well-developed and pointed central coronal plate and lateral coronal ridges, with more than twelve ridges; P. parvaspina, with central dermal denticles that present a pointed central coronal plate and pointed lateral coronal ridges that are much smaller than the central coronal plate and are few in number, between two to four; P. lucindai,with a crown of central dermal denticles that present a quadrangular central coronal plate and slightly rounded lateral coronal ridges; P. araguaia with central dermal denticles that present a pointed and reduced central coronal plate and rounded and well developed lateral coronal ridges; P. munduruku has dermal denticles on the central disc with a crown that has a central coronal plate and lateral coronal ridges that are the leaf-shaped and smaller than the central coronal plate); rostral projection of the neurocranium is very reduced and almost imperceptible (vs. P. aiereba, P. orinocensis, P. lucindai, P. munduruku, which have reduced but apparent projections; P. parvaspina, which has a robust projection that does not reach the anterior level of the nasal capsules; P. araguaia, which has a well expanded rostral projection that exceeds the anterior level of the nasal capsules).

Distribution
median portion of rio Xingu, approximately between the municipalities of São Felix do Xingu and Senador José Porfírio [35912]

Size / Weight / Age
Adult specimens with mean of total length 813.5 mm, with maximum value of 958 mm, mean of disc length in 670 mm, with maximum in 933 mm, and mean of disc width 628.7 mm, with maximum in 873 mm. [35912]

Habitat
freshwater [35912]

Remarks
shark-references Species-ID=17812