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Narcondam Shrew
The Narcondam shrew (''Crocidura narcondamica'') is a white-toothed shrew in the family Soricidae. It is endemic to Narcondam Island, a small, remote, volcanic island situated in Andaman Sea and considered part of the Andaman and Nicobar archipelago. It was discovered in April 2020 and was described about a year later in 2021. The species lives in the sub-leaf stratum of the forest floor and primarily feeds on insects. The specific epithet is derived from the type locality, Narcondam Island. It is one of two endemic fauna of the island, the other being the Narcondam hornbill (''Rhyticeros narcondami''). The species displays significant genetic divergence from mainland Asian species such as the Chinese white-toothed shrew (''Crocidura rapax''), and even greater divergence from other endemic '' Crocidura'' species from the Andaman-Nicobar islands, such as the Andaman shrew (''Crocidura andamanensis'') and Nicobar shrew (''Crocidura nicobarica''); this indicates that ''C. narcon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
White-toothed Shrew
The white-toothed shrews or Crocidurinae are one of three subfamilies of the shrew family Soricidae. The outer layer of these shrews' teeth is white, unlike that of the red-toothed shrews. These species are typically found in Africa and southern Europe and Asia. This subfamily includes the largest shrew, the Asian house shrew, ''Suncus murinus'', at about 15 cm in length, and the smallest, the Etruscan shrew, ''Suncus etruscus'', at about 3.5 cm in length and 2 grams in weight. The latter is possibly the world's smallest extant mammal, although some give this title to the bumblebee bat. ''Crocidura'' contains the most species of any mammal genus. When young must be moved before they are independent, mother and young form a chain or "caravan" where each animal hangs on to the rear of the one in front. This behaviour has also been observed in some ''Sorex'' species. List of species Subfamily Crocidurinae *Genus ''Crocidura'' (white-toothed shrews) ** Mysterious shrew, ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcondam Island
Narcondam, India's easternmost island, is a small volcanic island located in the northern Andaman Sea. The island's peak rises to 710 m above mean sea level, and it is formed of andesite. It is part of the Andaman Islands, the main body of which lie approximately to the west.The island is part of the Indian union territory of Andaman and Nicobar Islands. The island is small, covering an area of approximately 6.8 square kilometres. It was classified as a dormant volcano by the Geological Survey of India. Etymology The name Narcondam could have been derived from the Tamil word ''naraka-kundram (நரககுன்றம்)'', meaning "a pit of Hell," although this may be the result of confusion between it and Barren Island. History Until 1986 Burma claimed sovereignty over the island. This claim was given up on reaching agreement with India on the delimitation of the maritime boundary between the two nations in the Andaman Sea, the Coco channel and the Bay of Bengal. There ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High Island
Geologically, a high island or volcanic island is an island of volcanic origin. The term can be used to distinguish such islands from low islands, which are formed from sedimentation or the uplifting of coral reefs (which have often formed on sunken volcanos). Definition and origin There are a number of "high islands" that rise no more than above sea level, often classified as "islets or rocks", while some low islands, such as Banaba, Henderson Island, Makatea, Nauru, and Niue, as uplifted coral islands, rise over above sea level. The two types of islands are often found in proximity to each other, especially among the islands of the South Pacific Ocean, where low islands are found on the fringing reefs that surround most high islands. Volcanic islands normally arise above a hotspot. Habitability High islands above a certain size usually have fresh groundwater Groundwater is the water present beneath Earth's surface in rock and soil pore spaces and in the fractu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaman Sea
The Andaman Sea (historically also known as the Burma Sea) is a marginal sea of the northeastern Indian Ocean bounded by the coastlines of Myanmar and Thailand along the Gulf of Martaban and west side of the Malay Peninsula, and separated from the Bay of Bengal to its west by the Andaman Islands and the Nicobar Islands. Its southern end is at Breueh Island just north of Sumatra, with the Strait of Malacca further southeast. Traditionally, the sea has been used for fishery and transportation of goods between the coastal countries and its coral reefs and islands are popular tourist destinations. The fishery and tourist infrastructure was severely damaged by the 2004 Indian Ocean earthquake and tsunami. Geography Location The Andaman Sea, which extends over 92°E to 100°E and 4°N to 20°N, occupies a very significant position in the Indian Ocean, yet remained unexplored for long period of time. To the south of Myanmar, west of Thailand, and north of Indonesia, this sea is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaman And Nicobar
The Andaman and Nicobar Islands is a union territory of India consisting of 572 islands, of which 37 are inhabited, at the junction of the Bay of Bengal and the Andaman Sea. The territory is about north of Aceh in Indonesia and separated from Thailand and Myanmar by the Andaman Sea. It comprises two island groups, the Andaman Islands (partly) and the Nicobar Islands, separated by the 150 km (100 mile) wide Ten Degree Channel (on the 10°N parallel), with the Andaman islands to the north of this latitude, and the Nicobar islands to the south (or by 179 km; 111 miles). The Andaman Sea lies to the east and the Bay of Bengal to the west. The island chains are thought to be a submerged extension of the Arakan Mountains. The territory's capital is the city of Port Blair. The total land area of the islands is approximately . The territory is divided into three districts: the Nicobar District with Car Nicobar as its capital, the South Andaman district with Port Blair ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Binomial Nomenclature
In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen, name or a scientific name; more informally it is also historically called a Latin name. The first part of the name – the '' generic name'' – identifies the genus to which the species belongs, whereas the second part – the specific name or specific epithet – distinguishes the species within the genus. For example, modern humans belong to the genus ''Homo'' and within this genus to the species ''Homo sapiens''. ''Tyrannosaurus rex'' is likely the most widely known binomial. The ''formal'' introduction of this system of naming species is credit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Narcondam Hornbill
The Narcondam hornbill (''Rhyticeros narcondami'') is a species of hornbill in the family Bucerotidae. It is endemic to the Indian island of Narcondam in the Andamans. Males and females have a distinct plumage. The Narcondam hornbill has the smallest home range out of all the species of Asian hornbills. Description The Narcondam hornbill is a small hornbill at long. The sexes differ in plumage. The male has a rufous head and neck, black body and upper parts glossed with green. Females are all black. There is a bluish white throat patch and the tail is white in both sexes. Both sexes have a bill with a few folds on the upper side towards the base of the upper mandible. The skin around the eye is bluish. The iris of the male is orange red while the female has an olive brown with a pale yellow ring. The bill is waxy and the furrows of the casque are brownish. The bill is pinkish towards the base. The legs are black and the sole is yellow. Taxonomy The species was described by A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese White-toothed Shrew
The Chinese white-toothed shrew (''Crocidura rapax'') is a species of mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ... in the family Soricidae. Description The Chinese white-toothed shrew is described as medium-sized with light brown dorsal fur and a faintly-colored dichromatic tail. Compared to ''Crocidura attenuata'', its posterior upper premolars are not severely concave, exposing less bone material. The skull of ''Crocidura rapax'' is also longer than that of ''Crocidura indochinensis'' with a "proportionately broader maxillary to interorbital region but with a comparatively narrow braincase relative to skull length and maxillary breadth".Jenkins, P. D., Lunde, D. P., & Moncrieff, C. B. (2009). Descriptions of New Species of Crocidura (Soricomorpha: Soricidae) fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocidura
The genus ''Crocidura'' is one of nine genus, genera of the shrew subfamily Crocidurinae. Members of the genus are commonly called white-toothed shrews or musk shrews, although both also apply to all of the species in the subfamily. With over 180 species, ''Crocidura'' contains the most species of any mammal genus. The name ''Crocidura'' means "woolly tail", because the tail of ''Crocidura'' species are covered in short hairs interspersed with longer ones. They are found throughout all tropical and temperate regions of the Old World, from South Africa north to Europe, and east throughout Asia, as far east as the Malay Archipelago. One species, the possibly extinct Christmas Island shrew (''C. trichura''), also inhabited Christmas Island. They likely originated in Africa or Anatolia, Asia Minor during the Miocene, spread to Europe by the early Pliocene, and spread to eastern Asia and the Mediterranean by the Pleistocene. List of species Extant species *Javan hidden shrew ('' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andaman Shrew
The Andaman shrew or Andaman white-toothed shrew (''Crocidura andamanensis'') is a critically endangered species of mammal in the family Soricidae. It is endemic to the South Andaman Island of India India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so .... They are usually active by twilight or in the night and have specialized habitat requirements. Habitat loss due to selective logging, natural disasters such as tsunami and drastic weather change are thought to contribute to current population declines. References Crocidura Endemic fauna of the Andaman Islands Mammals of India Critically endangered fauna of Asia Mammals described in 1902 Taxonomy articles created by Polbot {{whitetoothed-shrew-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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