FIGURE 4 in An Unusual, Dwarf New Species Of Neotropical Freshwater Stingray, Plesiotrygon Nana Sp. Nov., From The Upper And Mid Amazon Basin: The Second Species Of Plesiotrygon (Chondrichthyes: Potamotrygonidae)

FIGURE 4: Morphological details of paratype of Plesiotrygon nana sp. nov. (MUSM 40243, preadult male, 671 mm TL, 174 mm DL, 170 mm DW, Río Amazonas, near Tamshiyacu, Peru). A) Dorsal view of anterior disc and head region. B) Nasoral region. C) Dorsal view of base of tail and pelvic fins. D) Dorsal view of claspers and pelvic fins. E) Ventral view of pelvic fins and claspers. F) Dorsal view of base of tail and tail region at caudal stings. G) Lateral view of tail at caudal sting region, showing ventral tail-fold. Scale bar in A, C, E, F, G = 2 cm; B, D = 1 cm.