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This hermit crab supports the heavy shell of a gastropod with its four pairs of ambulatory legs, shielding its soft abdomen inside. It features a unique and exotic color pattern, sporting alternating bright blue and black stripes on its legs and olive green chela with white speckles on the ends.
Clibanarius tricolor is a hermit crab that lives in shallow water of the Caribbean Sea and is popular in the home aquarium trade. Its common names include blue-legged hermit crab, tricolor hermit crab, [1] blueleg reef hermit crab, equal handed hermit crab and blueleg hermit crab.
Pagurus samuelis is a small hermit crab, at up to a total length of 40 mm (1.6 in) and a carapace width of up to 19 mm (0.75 in). [2] The base colour of the exoskeleton is brown or green, [2] but the antennae are red, and adults have bright blue bands near the tips of their legs. [3] In smaller individuals, the bands may be white. [2]
An important and visually evident marker of difference between true crabs and carcinised Anomura is the number of leg pairs. While Brachyura (true) crabs have four pairs of legs used for locomotion, Anomura possess one much smaller set and therefore three sets of walking legs.
They reproduce through indirect sperm transfer between male and females. Courtship rituals involving touch and smell are common before mating. [8] Like other hermit crabs, they cannot make their own shells and instead they most often live in discarded snail shells. [9] Multiple Redleg calcinus have been observed sharing a single shell. [10]
Adults range in color from olive green to brown to black. Distinguishing characteristics of this hermit crab are white and often also blue bands on the walking legs. [3] The antennae are grayish-brown with distinct white bands. This hermit crab is also easily identified by the remarkable amount of hair covering its body.
Hermit crabs fighting over a shell A hermit crab retracted into a shell of Acanthina punctulata and using its claws to block the entrance. As hermit crabs grow, they require larger shells. Since suitable intact gastropod shells are sometimes a limited resource, competition often occurs between hermit crabs for shells. The availability of empty ...
The carapace is armed with dorsal spines and is more heavily calcified than is the case in most hermit crabs. The walking legs are relatively long and the crab "wears" a mollusc shell that appears to be too small. The crab's body and legs are brown or pinkish and have a reddish iridescent sheen. [5]