1847page30。Nathusius’DieRacendesSchweines’1863s。54。）Asnowildpigsareknowntohaveanalogousappendages，wehaveatpresentnoreasontosupposethattheirappearanceisduetoreversion;andifthisbeso，weareforcedtoadmitthatasomewhatcomplex，thoughapparentlyuseless，structuremaybesuddenlydevelopedwithouttheaidofselection。

　　Itisaremarkablefactthattheboarsofalldomesticatedbreedshavemuchshortertusksthanwildboars。Manyfactsshowthatwithmanyanimalsthestateofthehairismuchaffectedbyexposureto，orprotectionfrom，climate;andasweseethatthestateofthehairandteetharecorrelatedinTurkishdogs（otheranalogousfactswillbehereaftergiven），maywenotventuretosurmisethatthereductionofthetusksinthedomesticboarisrelatedtohiscoatofbristlesbeingdiminishedfromlivingundershelter？

　　Ontheotherhand，asweshallimmediatelysee，thetusksandbristlesreappearwithferalboars，whicharenolongerprotectedfromtheweather。

　　Itisnotsurprisingthatthetusksshouldbemoreaffectedthantheotherteeth;aspartsdevelopedtoserveassecondarysexualcharactersarealwaysliabletomuchvariation。

　　Itisawell—knownfactthattheyoungofwildEuropeanandIndianpigs（3/26。D。Johnson’SketchesofIndianFieldSports’page272。Mr。CrawfurdinformsmethatthesamefactholdsgoodwiththewildpigsoftheMalaypeninsula。），forthefirstsixmonths，arelongitudinallybandedwithlight—colouredstripes。Thischaractergenerallydisappearsunderdomestication。TheTurkishdomesticpigs，however，havestripedyoung，ashavethoseofWestphalia，\"whatevermaybetheirhue\"（3/27。ForTurkishpigsseeDesmarest’Mammalogie’1820page391。ForthoseofWestphaliaseeRichardson’Pigs，theirOrigin，etc。’1847page41。）;whethertheselatterpigsbelongtothesamecurly—hairedraceastheTurkishswine，Idonotknow。ThepigswhichhaverunwildinJamaicaandthesemi—feralpigsofNewGranada，boththosewhichareblackandthosewhichareblackwithawhitebandacrossthestomach，oftenextendingovertheback，haveresumedthisaboriginalcharacterandproducelongitudinally—stripedyoung。Thisislikewisethecase，atleastoccasionally，withtheneglectedpigsintheZambesisettlementonthecoastofAfrica。（3/28。WithrespecttotheseveralforegoingandfollowingstatementsonferalpigsseeRoulinin’Mem。presentespardiversSavansal’Acad。’etc。Paristome61835page326。Itshouldbeobservedthathisaccountdoesnotapplytotrulyferalpigs;buttopigslongintroducedintothecountryandlivinginahalf—

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