Chirostylus

Chirostylus is a genus of squat lobsters in the family Chirostylidae. These crustaceans are characterized by their unique, highly specialized morphology, with their second pair of maxillipeds (feeding appendages) modified into long, claw-like structures that give them their name (“hand-style”). They are typically found in deep-sea environments, inhabiting the benthic zone where they forage for food.

Spider Squat Lobster – Chirostylus sandyi

Common Names

Members of the genus Chirostylus are commonly referred to as "squat lobsters" or "deep-sea squat lobsters," reflecting their robust body shape and habitat.

Characteristics

Chirostylus species exhibit several distinctive features:

  • Large, claw-like second maxillipeds: These appendages are highly adapted for prey capture and manipulation, giving them their characteristic appearance.
  • Short, stout bodies: Squat lobsters have a compact body form, typically with a broad carapace and relatively short abdomen.
  • Weakly calcified exoskeletons: Unlike some other crustaceans, Chirostylus species have a relatively soft and pliable exoskeleton, likely an adaptation to their deep-sea environment.
  • Variable coloration: Depending on the species and habitat, Chirostylus can be brightly colored, ranging from orange and red to brown and black.

Environments

Chirostylus species are found in various deep-sea environments, primarily on the continental slopes and seamounts. They prefer rocky and hard substrates, often hiding in crevices and under rocks.

References

For further information on Chirostylus, consult the following reliable sources: