Scolopendra abnormis | |
---|---|
Scolopendra abnormis female with eggs (Round Island, Mauritius) | |
A large Scolopendra abnormis individual (ca. ~90 mm long), found nesting beneath a rock embedded in soil (Round Island, Mauritius). Photographed in 2023. | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Arthropoda |
Subphylum: | Myriapoda |
Class: | Chilopoda |
Order: | Scolopendromorpha |
Family: | Scolopendridae |
Genus: | Scolopendra |
Species: | S. abnormis |
Binomial name | |
Scolopendra abnormis J. G. E. Lewis & P. Daszak, 1996 | |
Scolopendra abnormis, the Serpent Island centipede, is a species of centipede in the family Scolopendridae that is endemic to Mauritius. [1] It only occurs on two outlying islands, Round Island and Serpent Island. On Serpent Island it is very common, reaching densities among adults of 12 per square metre (1.1 per square foot) in suitable habitat. [2]
Ancestors of Scolopendra abnormis likely colonized Mauritius a few million years ago but became extinct there because of introduced predators, with only relict populations surviving on outlying islands. Scolopendra abnormis are unable to swim and probably reached their current habitats by rafting or during ice ages when Round and Serpent Islands were connected to Mauritius through land bridges. [2]
Scolopendra abnormis grow to at least 95 mm (3.7 in) in length, with the specimens from Serpent Island being slightly larger than those from Round Island. Their overall colour is yellowish. They do not show escape reactions when exposed. [2]
Scolopendra abnormis are typically found under rocks or between slabs of volcanic tuff (Round Island), or in loose networks of burrows in humid peat-like soil between slabs of rock (Serpent Island). They are nocturnal carnivores that feed mainly on insects. [3] A dietary metabarcoding study found that approximately one quarter of centipedes also consume Bojer's skink, [4] a species of skink endemic to Mauritius found over Round Island which listed as Critically Endangered on the IUCN Red List. They can inflict a painful bite on humans. Scolopendra abnormis are preyed upon by Serpent Island geckos and Round Island skinks. [2]
Centipedes are predatory arthropods belonging to the class Chilopoda of the subphylum Myriapoda, an arthropod group which includes millipedes and other multi-legged animals. Centipedes are elongated segmented (metameric) creatures with one pair of legs per body segment. All centipedes are venomous and can inflict painful stings, injecting their venom through pincer-like appendages known as forcipules or toxicognaths, which are actually modified legs instead of fangs. Despite the name, no species of centipede has exactly 100 legs; the number of pairs of legs is an odd number that ranges from 15 pairs to 191 pairs.
Trinidad and Tobago are continental islands with a geologically very recent history of direct land bridge connection to South America. As a result, unlike most of the Caribbean Islands, Trinidad and Tobago supports a primarily South American flora and fauna and has greater diversity of plant and animal species than the Antilles. However, rates of endemism are lower than in the rest of the Caribbean because there has been less time for genetic isolation from mainland populations because of the history of land bridge connections and hence fewer opportunities for speciation, and so a greater proportion of the species in Trinidad and Tobago are also found on the South American mainland. Trinidad is nearer to mainland South America and has been directly connected to the mainland via land bridges more often and for longer periods than Tobago. This, as well as Trinidad's larger size and more varied topography and hydrology compared to that of Tobago allow greater species and ecosystem diversity on the former compared to that on the later of the islands.
The Mauritian Wildlife Foundation (MWF) is an independent, non-governmental, non-profit conservation agency working in Mauritius and the Outer Islands to save threatened endemic local flora and fauna.
The rice paddy snake, also known as grey water snake, Boie's mud snake, yellow or orange bellied water snake, lead water snake or plumbeous water snake is a species of non - venomous, rear-fanged snake endemic to South Asia. It is somewhat common, and is one of the most widespread species of water snake in Asia.
Round Island is an uninhabited islet 22.5 kilometres north of Mauritius. It has an area of 1.69 square kilometres and a maximum elevation of 280 metres. The island has been a nature reserve since 1957 and is administered jointly by the National Parks and Conservation Service and the Mauritian Wildlife Foundation. The island has been designated an Important Bird Area (IBA) by BirdLife International.
Leiolopisma telfairii, also known commonly as the Round Island ground skink, the Round Island skink, and Telfair's skink, is a species of lizard in the family Scincidae. The species is endemic to Round Island, one of the islands of Mauritius.
Bojer's skink is a small species of skink, a lizard in the family Scincidae. The species is endemic to Mauritius including some of its offshore islands.
The Round Island burrowing boa is an extinct species of snake, in the monotypic genus Bolyeria, in the family Bolyeriidae. The species, which was endemic to Mauritius, was last seen on Round Island in 1975. There are no recognized subspecies.
Scolopendra is a species-rich genus of large tropical centipedes of the family Scolopendridae.
The Islets of Mauritius include circa 130 tiny islets and rocks scattered around the coast of Mauritius, Rodrigues, Agalega and St Brandon.
Brauer's burrowing skink, also known commonly as Brauer's skink, is a species of lizard in the family Scincidae. The species is endemic to the Seychelles.
The Mauritian giant skink is a large, extinct species of skink It was found only in Mauritius. It became extinct sometime in the 17th century, likely due to human-introduced predators.
Gardiner's burrowing skink is a species of lizard in the family Scincidae. P. gardineri is the only species in the (monotypic) skink genus Pamelaescincus. The species is endemic to the Seychelles.
The Seychelles skink also known as the Mangouya, is a species of skink in the family Scincidae. It is endemic to the Seychelles.
The wildlife of Mauritius consists of its flora and fauna. Mauritius is located in the Indian Ocean to the east of Madagascar. Due to its isolation, it has a relatively low diversity of wildlife; however, a high proportion of these are endemic species occurring nowhere else in the world. Many of these are now threatened with extinction because of human activities including habitat destruction and the introduction of non-native species. Some have already become extinct, most famously the dodo which disappeared in the 17th century.
The Serpent Island gecko is a species of lizard in the family Gekkonidae. The species is endemic to Serpent Island in Mauritius.
The Round Island boa, also known commonly as the Round Island keel-scaled boa and the Round Island ground boa, is a species of nonvenomous snake in the monotypic genus Casarea in the family Bolyeriidae. The species is endemic to Round Island, Mauritius. No subspecies are currently recognized.
Scolopendra morsitans, also known as the Tanzanian blue ringleg or red-headed centipede, is a species of centipede in the family Scolopendridae. S. morsitans is the type species for the genus Scolopendra.
Eremiascincus butlerorum is a species of skink, a lizard in the family Scincidae. The species is endemic to the island of Sumba in Indonesia.