Tag Archives | Exoskeleton of Dogfish

In Scoliodon, the exoskeleton comprises the placoid scales, embedded in the skin. Structure of a Placoid Scale: A typical placoid scale consists of mainly two parts- the basal plate and the flat trident spine. The basal plate is diamond-shaped and lies embedded in the dermis and firmly placed by Sharpey's and other connective tissue fibres. The basal plate is formed [...]