White carapace with peach legs and claw arms, black and parallel, bands run between and just beyond eyes, reddish pincer tips.Commensal with Acropora branching corals.

Shades of orange with yellow, occasionally carapace is darker with two rows of yellow dots, four rounded lobes between eyes, Left inner carpus has six spines, the right carpus has seven.Commensal with branching corals, use claws to ward of coral predators.

Commonly, this crab has reddish brown body with two yellow or whitish crescents at the body. Living commensal with black corals. Body size up to 2 cm.

This crab has gold to pinkish carapace without markings. Living associate with soft coral, gorgonian and black coral. Body size up to 1.5 cm

This species is usually found on sea fans or soft coral either in pairs or solitary. They have a brown color body with a mix of white and yellow stripes. They have 8 long and slender legs with a brown base color and white spots. Their body size is up to 5 cm.

This tiny crab is concealed within the sponge it carries. The Body is semi-transparent. Much like the Hermit crab, it lives in a cavity created by the sponge as its host. It carries the sponge everywhere and uses it as protection. They are a shallow water species.

This species has a furry carapace with lateral spines on that are large and sharply pointed. The bigger species such as Lauridromia dehaani is often found carrying a sponge with its rear legs. They are usually found at night, but are only found occasionally.

Their carapace is covered with densely packed tubercles of anemones, tunicates and other materials on the body. Their legs are covered with brown spots and there are two bands on each leg segment. They are only found occasionally.

A very professionally camouflaged crab, it can be usually only be recognized when it moves. It attaches many organisms such as algae and other ocean materials to its body. It is usually found at night, and is very artistic. They are fairly common.

This species has a small size with long white eye stalks and sharp, slender chelipeds. They are mostly found buried in sand but they can also be found attaching their arms to hold on to another species such as sea cucumbers or anemones. They are common.

They have an elongated carapace that does not cover their abdomen. This crab is named for its pincher that is shaped like a spanner. Their antennae are short, and they can be identified by the eyes that show up on the sand while the whole body is buried. They are very fast moving. They are only found occasionally.

There are several species of Calappa in Lembeh strait. They all burrow in soft sandy and muddy bottoms. Their shiny carapace can be from cream to brown, and they are sometimes covered in dark spots. Box crabs feed on mollusks, opening the shell with their powerful claw. They are only found occasionally.

This species is found exclusively on black corals, mainly in pairs, but can be in groups as juveniles. Its carapace is spiky and often covered by polyps of its host for better camouflage. Its colour depends on the colour of its host. It tends to stay on the same whip coral for a longer period of time.

They live in sandy, muddy and sea grass areas, and are often found buried in the soft bottom during day. They comes out of their burrows during high tides and at night, when they looks for prey (bivalves, fish and sometimes macroalgae).

Found in pairs or solitary on several species of sea urchins. Noticeable species with bright white and black ‘zebra’ pattern. One pair of their appendages is modified into hooks, which allow them to hold on firmly in place when the sea urchins move.

This is a small species of porcelain crab. It lives hiding in the stem of a sea pen (soft coral mostly emerging at night). It feeds by filtering plankton using sieve-like structures on its modified claws. They are usually found in pairs.

This species lives symbiotically among the stinging tentacles or under the basal disk of carpet anemones. It filter feeds on plankton, using a special sieve-like appendage. They are often found in pairs. Their central body has a round shape, with a smooth surface. They have large claws. They are reamy white with numerous small red spots. They live mostly in anemones, and the females are larger than the males.

This small spider crab species is often found on hard corals i.e. Euphyllia sp. (bubble coral), soft corals, and red algae. Their entire body is covered with long red, orange or purple hair for camouflage.

This small species of swimmer crab lives commensally on tube anemones. Its colour pattern varies from white to brown and red. Its spine is weak and it lives symbiotically in tube anemones.

Small crab that lives in association with Halimeda algae. It is very well camouflaged, as it resembles its host not only with its green and white colour pattern, but also with its body shape imitating the shapes of the Halimeda blades. It often attaches the algal blades to its rostrum. This crab can almost disappear as its algae host renders it almost invisible to predators. It has a triangle body and carries Halimeda algae.

This is a small species of spider crab, which hides among polyps of soft corals, Dendronepthya sp. Their body colour ranges from white, pink, yellow to red depending on the colour or its host. It camouflages itself by attaching soft coral polyps onto its carapace. Their first pair of legs has small claws, they have a body with large spines, and they are translucent with red and white patterns, mimicking a soft coral host. Their body size is about 1,5 cm.

Can be found hiding under small rocks. Lybia sp. carapace has a distinct colour pattern. This boxer crab lives in a mutual relationship with small anemones, which is carries in its claws. The anemone’s stinging cells protect the boxer crab against predators and in return, the boxer crab provides food for its protectors. They have a body size of about 1.5 cm and can be found hiding in scattered rocks. They move very fast and are therefore difficult to find. This species defends themselves by carrying small anemones in their claws, just like boxer’s gloves.