All Seahorse species have morphology similarities: a head at right angles to an upright body, a long prehensile, finless tail, an armour plated body and a tubular snout.

To differentiate between the different species of Seahorse there are several characteristics to consider:-

  • Overall height of the animal

  • Number of trunk rings

  • Snout length in proportion to head size

  • Height and form of coronet

  • Development of spines on the body

  • Number of tail rings

  • Markings, such as stripes or spots