Stimdromia lateralis with colonial ascidians on its back.
Stimdromia lateralis without of its ascidian cover.
Carapace: usually as wide as or wider than long, surface is either smooth or granular, strong blunt tubercle on the surface of carapace underneath the eyes (Poore & Norman, 2007).
Chelipeds: Pair of chelipeds are similar in size, tips of the chelipeds are often coloured with dark colours. Presence of epipods attaching to the coxa of chelipeds (Poore, 2004).
Pereiopods: most noticeable characteristic is that the last 2 pairs of walking legs are bent backwards and are situated on top of the carapace, also the dactyls are modified with pincer-liked features which enable them to hold on to their symbiont caps (Poore & Norman, 2007). All pereiopods are ciliated.
Size: 29mm in length in average (carapace length)
Colour: Orange, Dark Red to Brown (Jones & Morgan, 2007). However, they are often found carrying symbiotic sponges or ascidians of various colours on their carapace.
Pattern: No pattern to various patterns, the studied individual has light-coloured pattern on its carapace just behind the eyes.
Others: Usually found carrying symbionts (Sponges or Ascidians) on the back of its carapace.
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