Homolidae

Homolidae
Paromola cuvieri
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Infraorder: Brachyura
Section: Dromiacea
Superfamily: Homoloidea
Family: Homolidae
De Haan, 1839

The family Homolidae, known as carrier crabs[1] or porter crabs,[2] contains 14 genera of marine crabs. They mostly live on the continental slope and continental shelf, and are rarely encountered.[3] Members of the Homolidae have their fifth pereiopods (last pair of walking legs) in a sub-dorsal position, which allows them to hold objects in place over the rear half of the carapace.[3] The objects carried include sponges, black corals and gorgonians, and this is behaviour may be a defence mechanism against predators.[3] Some species have been observed carrying living sea urchins in a symbiotic relationship which allows them to benefit from the protection of the urchin's dangerous spikes.[4][5]

Genera

A total of 14 genera are currently recognised in the family:[6]

See also

References

  1. Family Homolidae - carrier crabs at sealifebase.org
  2. Family Homolidae (Porter crabs) at the Marine Species Identification Portal
  3. 3.0 3.1 3.2 Mary K. Wicksten (1985). "Carrying behavior in the family Homolidae (Decapoda: Brachyura)". Journal of Crustacean Biology 5 (3): 476–479. JSTOR 1547919.
  4. Relationships on the Reef
  5. Carrier Crab video, National Geographic
  6. Peter Davie & Michael Türkay (2011). "Homolidae". World Register of Marine Species. Retrieved April 27, 2011.