Squamodisc
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![Scanning electron microscopy of the scales in a squamodisc.[1] Bar: 2µm.](/Images/godic/202502/12/Parasite140121-fig3_Pseudorhabdosynochus_jeanloui_(Monogenea,_Diplectanidae)_Fig3d_Squamodisc_SEM3820.png")
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Squamodiscs are epidermal structures, which are typical of and found only in certain monogeneans of the family Diplectanidae. There are, typically, two squamodiscs, one ventral and one dorsal, located on the haptor of the monogenean. Squamodiscs are usually made up of scales embedded in the epidermis, which appear from the outside as rodlets arranged in rows.