Leptarma biju: Difference between revisions
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Revision as of 17:09, 7 December 2024
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| Leptarma biju | |
|---|---|
Scientific classification 
| |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Malacostraca |
| Order: | Decapoda |
| Suborder: | Pleocyemata |
| Infraorder: | Brachyura |
| Family: | Sesarmidae |
| Genus: | Leptarma |
| Species: | L. biju
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| Binomial name | |
| Leptarma biju Ng & Devi, 2020
| |
Leptarma Biju, commonly known as the tree-spider crab, is a species of crab endemic to the mangroves in Kerala, India. It is named for its unique root-climbing behavior. It has a pink, purplish, reddish exterior.
Description
Leptarma biju has a square-like body (or carapace) with yellow and purple patches, long walking legs with hook-like appendages for climbing, and the unique structure of their gonopods.[1] Additionally, they have large eyes that are positioned beyond their external orbital teeth, which allows them to get a better view of their surroundings, which is not usual in The Animal Kingdom.[2] They behave nocturnally and climb the roots of mangrove trees at low tide. Their purple, brick-red, and yellow coloration is thought to be an evolutionary form of camouflage that hides the crabs from their predators. It is the first species of Leptarma that has been identified in the country of India.
Taxonomy
Leptarma biju were discovered in Kerala, India at the mouth of the Chittari River by carcinologists Dr. Suvarna S. Devi, from the Department of Aquatic Biology and Fisheries at the University of Kerala, and Professor Peter Ng, head of Lee Kong Chian National History Museum of Singapore in 2020. Investigators came across a few specimens of the new species, climbing granite pylons under a bridge near a large patch of mangroves, and collected them for further analysis.[3] Some hypothesize that these crustaceans have successfully evaded discovery for so long due to their small size, nocturnal behavior, and camouflage coloration. Additionally, researchers have noted the many challenges and dangers that make exploring mangrove ecosystems at night difficult.[2] Leptarma biju received its scientific name in honor of the head of the Department of Aquatic Biology and Fisheries at the University of Kerala, Dr. Appukuttannair Biju Kumar, who is credited with the discovery.
References
- ^ "New tree-spider crab species with purple patches described from Kerala's mangroves". Mongabay-India. December 21, 2020.
- ^ a b "New crab species is a purple tree-climber". October 7, 2020.
- ^ "New species of tree-spider crab found in Kerala". www.science.nus.edu.sg. 30 September 2020. Retrieved 16 November 2021.
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