Insectivora Sentence Examples
As regards the affinities of the creatures to which these jaws belonged, Professor Osborn has referred the Triconodontidae and Amphitheriidae, together with the Curtodontidae (as represented by the English Purbeck Curtodon), to a primitive group of marsupials, while he has assigned the Amblotheriidae and Stylacodontidae to an ancestral assemblage of Insectivora.
Of the Insectivora numerous forms of moles, shrews and hedgehogs prevail.
Amongst the Insectivora very peculiar forms are found, such as Gymnura and Tupaia.
The same conclusion is indicated by the absence from the Moluccas and Celebes of various other Mammals, Quadrumana, Carnivora, Insectivora and Ruminants, which abound in the western part of the Archipelago.
Among the Insectivora, the alpine shrew (Sorex alpinus) is restricted to the Alps.Advertisement
A lemur and one of the curious hedgehog-like Insectivora of Madagascar (Centetes ecaudatus) have probably both been brought from the larger island.
In some districts the tsetse fly causes great havoc. The most interesting of the endemic insectivora is the Chrysochloris or " golden mole," so called from the brilliant yellow lustre of its fur.
Most of the earliest known mammals appear to be related to the Marsupialia and Insectivora.
The Insectivora are certainly the lowest group of existing placental mammals, and exhibit many signs of affinity with marsupials; they may even be a more generalized group than the latter.
From the Insectivora the bats, or Chiroptera, are evidently a specialized lateral offshoot; while the Dermoptera ma y be another branch from the same stock.Advertisement
Be this as it may, there can be little doubt that the creodonts are related to the Insectivora, which, as stated above, show decided signs of kinship with the marsupials.
The Insectivora (except a few shrews which have entered from the north) are absent from South America, and appear to have been mainly an Old World group, the only forms which have entered North America being the shrew-mice (Soricidae) and moles (Talpidae).
Other peculiar animals are twenty-three species of the Centetidae, a family of the Insectivora almost confined to Madagascar; while of the Carnivora there are several small creatures belonging to the civets (Viverridae).
From the structure of the skull, it is thought probable that Abderites had an elongated snout, like that of many Insectivora.
Similarly imbricated epidermic productions form the covering of the undersurface of the tail of the African flying rodents of the family Anomaluridae; and flat scutes, with the edges in apposition, and not overlaid, clothe both surfaces of the tail of the beaver, rats and certain other members of the rodent order, and also of some insectivora and marsupials.Advertisement