Arctides regalis
| Arctides regalis | |
|---|---|
| |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Family: | Scyllaridae |
| Genus: | Arctides |
| Species: | A. regalis
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| Binomial name | |
| Arctides regalis Holthuis, 1963[1]
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Arctides regalis is a species of slipper lobster found in the tropical Indo-Pacific region. It was initially thought to be the same species as A. guineensis,[2] but has since been renamed after Mary Eleanore King.[3] Its common name is royal Spanish lobster and it is known as ula-papapa in Hawaii.[1] The species is assessed as Least Concern in the IUCN Red List of Threatened Species.[4]
Description
[edit]Articdes regalis has a dark red coloration, and is covered in black bristles.[3] As part of the family Scyllaridae, Articdes regalis share the common trait of antennae in the shape of paddles.[5] Their average overall length is 17 cm.[6] Carapace length of female specimens ranges from 41 to 55 mm, while for male specimens it ranges from 40 to 49 mm.[3]
Articdes regalis often feed on snails, clams, shrimps, and crabs.[3] To open its prey, the lobster moves it's dactyli in a wedging motion and extracts the body.[7] They are reported to run from divers during the day and are described as shy creatures.[3] As they become more sociable at night, they are considered to be nocturnal.[3]
Distribution & Habitat
[edit]Arctides regalis is found in the tropical Indo-Pacific region, including multiple African, Asian, and Oceanic countries.[8] It is a benthic species.[6] Due to its orange-red coloring it often blends in with Tubastraea coral that grows in its hiding place.[9] During the day, they hide in groups on the walls and ceilings of underwater caves.[3] At nights, scuba divers have reported sightings of the lobsters at depths of 5 to 50 meters in coral reefs.[6]
Human use
[edit]Aquarium trade
[edit]Arctides regalis can be kept in an aquarium with free-swimming fish, but it should be the only one of its species in the tank because they do not get along.[9] They are sought after for their vivid colors uncommon for slipper lobsters.[6]
References
[edit]- ^ a b "Arctides regalis Holthuis, 1963". ITIS. Retrieved July 2, 2019.
- ^ Holthuis, L. B. (1963). "Preliminary Descriptions of Some New Species of Palinuridea (Crustacea Decapoda, Macrura Reptantia)" (PDF). Zoology.
- ^ a b c d e f g Holthuis, Lipke B. (2006). "Revision of the genus Articdes Holthuis, 1960 (Crustacea, Decapoda, Scyllaridae)" (PDF). Zoosystema.
- ^ IUCN (2009-12-03). Arctides regalis: MacDiarmid, A.: The IUCN Red List of Threatened Species 2013: e.T170063A6702821 (Report). International Union for Conservation of Nature. doi:10.2305/iucn.uk.2011-1.rlts.t170063a6702821.en.
- ^ "Regal Slipper Lobster, Arctides regalis". www.marinelifephotography.com. Retrieved 2025-03-09.
- ^ a b c d "Arctides regalis, Royal Spanish lobster : fisheries". www.sealifebase.org. Retrieved 2025-03-09.
- ^ Lau, Colin J. (1987-09-01). "Feeding Behavior of the Hawaiian Slipper Lobster, Scyllarides Squammosus, with a Review of Decapod Crustacean Feeding Tactics on Molluscan Prey". Bulletin of Marine Science. 41 (2): 378–391.
- ^ "Country List - Arctides regalis". www.sealifebase.org. Retrieved 2025-03-30.
- ^ a b Debelius, Helmut; A. Baensch, Hans (1997). Marine Atlas Volume 1. MERGUS. pp. 574–575. ISBN 9781890087098.
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