#13 Rat Terriers ƙananan karnuka ne masu matsakaicin girma masu kamanni.
Karnukan sun zo da bambance-bambancen guda uku dangane da girmansu. Karamin karnuka ana kiransu kayan wasa kuma suna da tsayi a bushewar kusan 20 cm kuma suna auna tsakanin 2 zuwa 3 kg. Karnuka na ƙaramin ƙaramin ɗan ƙaramin girma suna da tsayi a bushewar tsakanin 25 zuwa 33 cm kuma suna auna 3 zuwa 4 kg. Dabbobi na daidaitattun bambance-bambancen su ne karnuka mafi girma kuma mafi nauyi tare da tsayin kafada na 33 zuwa 46 cm da nauyin 5 zuwa 16 kg.
#14 Rigar kare gajere ce kuma santsi.
Yawanci fari ne amma an tanadar masa da faranti daban-daban, galibi launin ruwan kasa da baki.