Species? thing?

i got my big long dog Goliath who is rlly great, and i decided to make an "original species" type thing for him cause ya know :\
plus i think it'd be fun to make adopts like him. I mostly just love drawing big long dogs hahA

anyways, idk what to call em, but they LONG and BIG. generally v furry with long teeth/nails. bigger/longer the stuff, the more rare/powerful they are. so BIG LONG TEETH or BIG LONG MULTIPLE TEETH is hella rare, so cool. same goes with ears/tails/fur on their bodies.
They're big ol carnivores that dominate in different regions of land. even in desert areas their fur can be long w/o it affecting how hot they get, same goes with short fur in cold areas. they don't get affected by temperatures in general, they always maintain a stable body heat that fluctuates accordingly.
accessories/bright colors/horns/deformities and drastic body sizes are all rare.
tiny 2ft tall dog = super rare
giant fucking enormous 20ft tall dog = super rare

obv they arent too creative or interesting but i like em so w/e
i might make adopts or add more things evolving rarities if i get enough interest!! feel free to ask questions
but i guess rn im gonna consider 'em a closed species

_{also idk about genitals right now hm.}