Info
Trygonoptera australis (Steindachner, 1866)
Trygonoptera henlei (Steindachner, 1866)
Trygonoptera muelleri (Steindachner, 1866)
Trygonoptera testaceus (Müller & Henle, 1841)
Urolophus testaceus (Müller & Henle, 1841)
If you want to find out about the size of rays in specialist literature, usually written in English, you will often come across two abbreviations that ultimately mean the same thing: DW or WD.
If you look at FishBase, WoRMS or first descriptions of rays, you will find these abbreviations.
The total length including shoal is only rarely given, the TL.