An introduction to the study of mammals living and extinct

Teeth, 13; Structure of teeth, 13; Development of teeth, 15; Forms of teeth, 17; Succession of teeth, 19; Arrangement, homologies, and notation of teeth, 21; Dental formulæ, 25;...

_Family_ PHASCOLOMYIDÆ, 144; _Phascolomys_, 145; _Phascolonus_, 146. _Family_ PHALANGERIDÆ, 147; _Subfamily_ Tarsipedinæ, 148; _Tarsipes_, 148; _Subfamily_ Phalangerinæ, 149; _P...

_Family_ BRADYPODIDÆ, 179; _Bradypus_, 181; _Cholœpus_, 182; _Nothropus_, 183. _Family_ MEGATHERIIDÆ, 183; _Megatherium_, 185; _Scelidotherium_ and _Mylodon_, 188; _Promegatheri...

_Family_ PHYSETERIDÆ, 247; _Subfamily_ Physeterinæ, 248; _Physeter_, 248; _Cogia_, 250; Extinct physeteroids, 251; _Subfamily_ Ziphiinæ, 251; _Hyperoödon_, 252; _Ziphius_, 254;...

SUINA, 278. _Family_ HIPPOPOTAMIDÆ, 278; _Hippopotamus_, 278. _Family_ SUIDÆ, 281; _Sus_, 281; _Babirusa_, 287; _Phacochœrus_, 288. _Family_ DICOTYLIDÆ, 289; _Dicotyles_, 289; _...

_Section_ SCIUROMORPHA, 448. _Family_ ANOMALURIDÆ, 449; _Anomalurus_, 449. _Family_ SCIURIDÆ, 450; _Sciurus_, 450; _Rhithrosciurus_, 452; _Xerus_, 452; _Tamias_, 452; _Pteromys_...

_Section_ ÆLUROIDEA, 501. _Family_ FELIDÆ, 502; _Felis_, 502; _Cynælurus_, 523; Extinct genera, 523. _Family_ VIVERRIDÆ, 525; _Cryptoprocta_, 525; _Viverra_, 526; _Fossa_, 527;...

_Family_ TUPAIIDÆ, 617; _Tupaia_, 617; _Ptilocercus_, 618; Extinct genera, 618. _Family_ MACROSCELIDIDÆ, 618; _Macroscelides_, 618; _Rhynchocyon_, 618. _Family_ ERINACEIDÆ, 619;...

_Section_ VESPERTILIONINA, 655. _Family_ RHINOLOPHIDÆ, 656; _Rhinolophus_, 656; _Hipposiderus_, 657; _Anthops_, 657; _Rhinonycteris_ and _Triænops_, 658; _Cœlops_, 658; _Megader...

_Family_ HAPALIDÆ, 709; _Hapale_, 710; _Midas_, 710. _Family_ CEBIDÆ, 711; _Mycetes_, 711; _Pithecia_, 712; _Uacaria_, 712; _Callithrix_, 713; _Chrysothrix_, 714; _Nyctipithecus...

Mammalia (French, _Mammifères_; German, _Säugethiere_) is the name invented by Linnæus (from the Latin _mamma_), and now commonly used by zoologists, for one of the five great c...

_Hair._—The external surface of the greater number of members of the class is thickly clothed with a peculiarly modified form of epidermis, commonly called hair. This consists o...

_Origin._—Although, as stated in the first chapter, the mammalian class, as at present known either by existing or extinct forms, is completely isolated from all other groups of...

In considering the present distribution of mammals over the globe, we may, in the first place, direct our attention to terrestrial or land types, reserving the consideration of...

_General Characters._—The characters of the Prototheria can at present only be deduced from the two existing families, since hitherto no extinct animals which can be referred wi...

_General Characters._—The Metatheria or Didelphia are represented at present by numerous species, presenting great diversities of general appearance, structure, and habits, alth...

The whole of the remaining groups of mammals are included in a single subclass, known by the names Eutheria, Monodelphia, or Placentalia.[87] The one distinctive feature they ha...

The purely aquatic habits and fish-like form of the animals of this order caused them to be formerly confounded with the Cetacea, but a more intimate knowledge of their structur...

Under this term may be included provisionally a large and rather heterogeneous group of mammals, the existing members of which form the Pecora and Belluæ of Linnæus, the Ruminan...

The Rodentia, or Rodents, form a well-defined order, readily distinguished by their large scalpriform incisors and the absence of any trace of canines. The existing forms are mo...

Though the existing Carnivora as at present restricted[422] form a very natural and well-defined order among the Mammalia, it is difficult to find any important common diagnosti...

The Insectivora comprise a number of comparatively small mammals, generally of terrestrial, although rarely of arboreal or aquatic habits, and presenting the following common fe...

Mammals, having their fore limbs specially modified for flight. The forearm consists of a rudimentary ulna, and a long curved radius. The carpus has six bones supporting a small...

This order in the system of Linnæus includes Man, the Monkeys, the Lemurs, and the Bats. By common consent of all zoologists the last-named animals have been removed into a dist...

[89] In some few Armadillos the suture between the premaxilla and maxilla passes behind the first upper tooth; but in all other known members of the order all the teeth are impl...