Homolidae
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 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][6][7]
| Homolidae | |
|---|---|
![]()  | |
| Paromola cuvieri | |
| Scientific classification  | |
| Kingdom: | Animalia | 
| Phylum: | Arthropoda | 
| Subphylum: | Crustacea | 
| Class: | Malacostraca | 
| Order: | Decapoda | 
| Suborder: | Pleocyemata | 
| Infraorder: | Brachyura | 
| Section: | Dromiacea | 
| Superfamily: | Homoloidea | 
| Family: | Homolidae De Haan, 1839  | 
Genera
    
A total of 14 genera are currently recognised in the family:[8]
- Dagnaudus Guinot & Richer de Forges, 1995
 - Gordonopsis Guinot & Richer de Forges, 1995
 - Homola Leach, 1816
 - Homolax Alcock, 1899
 - Homolochunia Doflein, 1904
 - Homologenus A. Milne-Edwards, in Henderson, 1888
 - Homolomannia Ihle, 1912
 - Ihlopsis Guinot & Richer de Forges, 1995
 - Lamoha Ng, 1998
 - Latreillopsis Henderson, 1888
 - Moloha Barnard, 1947
 - Paromola Wood-Mason & Alcock, 1891
 - Paromolopsis Wood-Mason & Alcock, 1891
 - Yaldwynopsis Guinot & Richer de Forges, 1995
 
See also
    
- Homola barbata, in the Atlantic Ocean and Mediterranean Sea
 - Paromola cuvieri, in the East Atlantic and Mediterranean Sea
 
References
    
- Family Homolidae - carrier crabs at sealifebase.org
 - Family Homolidae (Porter crabs) at the Marine Species Identification Portal
 - Mary K. Wicksten (1985). "Carrying behavior in the family Homolidae (Decapoda: Brachyura)". Journal of Crustacean Biology. 5 (3): 476–479. doi:10.2307/1547919. JSTOR 1547919.
 - "Relationships on the Reef". Archived from the original on 2011-08-11. Retrieved 2011-04-26.
 - Carrier Crab video Archived 2011-02-20 at the Wayback Machine, National Geographic
 - "Carrier Crab". video.nationalgeographic.com. Retrieved 2015-06-11.
 - Bates, Mary (June 10, 2015). "Natural Bling: 6 Amazing Animals That Decorate Themselves". National Geographic News. Retrieved 2015-06-11.
 - Peter Davie & Michael Türkay (2011). "Homolidae". World Register of Marine Species. Retrieved April 27, 2011.
 
