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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] |
Mammal
Mammals () are a group of vertebrate animals constituting the class (biology), class Mammalia (), characterized by the presence of mammary glands which in Female#Mammalian female, females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or hair, and three ossicles, middle ear bones. These characteristics distinguish them from reptiles (including birds) from which they Genetic divergence, diverged in the Carboniferous, over 300 million years ago. Around 6,400 extant taxon, extant species of mammals have been described divided into 29 Order (biology), orders. The largest Order (biology), orders, in terms of number of species, are the rodents, bats, and Eulipotyphla (hedgehogs, Mole (animal), moles, shrews, and others). The next three are the Primates (including humans, apes, monkeys, and others), the Artiodactyla (cetaceans and even-toed ungulates), and the Carnivora (cats, dogs, pinniped, seals, and others). In terms of cladistic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crocidura
The genus ''Crocidura'' is one of nine 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 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 (''C. abscondita'') ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
