_Family_ OTARIIDÆ, 593; _Otaria_, 593. _Family_ TRICHECHIDÆ, 596; _Trichechus_, 597. _Family_ PHOCIDÆ, 600; _Halichœrus_, 601; _Phoca_, 601; _Monachus_, 604; _Ogmorhinus_, 605; _Lobodon_, 605; _Pœcilophoca_, 605; _Ommatophoca_, 605; _Cystophora_, 605; _Macrorhinus_, 606; Extinct seals, 606. _Suborder_ CREODONTA 606 _Hyænodontidæ_, 608; _Proviverridæ_, 608; _Arctocyonidæ_ and _Mesonychidæ_, 609. CHAPTER XII THE ORDER INSECTIVORA 610 _Suborder_ DERMOPTERA 614 _Family_ GALEOPITHECIDÆ, 614; _Galeopithecus_, 614. _Suborder_ INSECTIVORA VERA 616 _Family_ TUPAIIDÆ, 617; _Tupaia_, 617; _Ptilocercus_, 618; Extinct genera, 618. _Family_ MACROSCELIDIDÆ, 618; _Macroscelides_, 618; _Rhynchocyon_, 618. _Family_ ERINACEIDÆ, 619; _Gymnura_, 619; _Erinaceus_, 620; Extinct genera, 621; _Family_ SORICIDÆ, 621; _Sorex_, 622; _Soriculus_, 624; _Notiosorex_, 624; _Blarina_, 624; _Crossopus_, 625; _Myosorex_, 625; _Crocidura_, 626; _Diplomesodon_, 626; _Anurosorex_, 626; _Chimarrogale_, 626; _Nectogale_, 627; Fossil Soricidæ, 627. _Family_ TALPIDÆ, 628; _Myogale_, 628; _Urotrichus_, 629; _Uropsilus_, 629; _Scalops_, 630; _Scapanus_, 630; _Condylura_, 630; _Scaptonyx_, 630; _Talpa_, 630; Extinct genera, 634. _Family_ ADAPISORICIDÆ, 634. _Family_ POTAMOGALIDÆ, 634; _Potamogale_, 635; _Geogale_, 635. _Family_ SOLENODONTIDÆ, 635; _Solenodon_, 636; _Centetes_, 637; _Hemicentetes_, 637; _Ericulus_, 638; _Microgale_, 638; _Oryzorictes_, 638; _Chrysochloris_, 639. EXTINCT TYPES, 640. Bibliography, 640. CHAPTER XIII THE ORDER CHIROPTERA 641 _Suborder_ MEGACHIROPTERA 650 _Family_ PTEROPODIDÆ, 650; _Epomophorus_, 650; _Pteropus_, 651; _Xantharpyia_, 652; _Boncia_, 653; _Cynopterus_, 653; _Harpyia_, 653; _Cephalotes_, 653; _Pteralopex_, 654; _Notopteris_, 654; _Eonycteris_, 654; _Carponycteris_ and _Melonycteris_, 654; _Nesonycteris_, 655; _Callinycteris_, 655; _Trygenycteris_, 655. _Suborder_ MICROCHIROPTERA 655