▁are ▁crit ically ▁end anger ed , ▁three ▁are ▁end anger ed , ▁nine ▁are ▁vulner able , ▁and ▁two ▁are ▁near ▁threatened . ▁Two ▁of ▁the ▁species ▁listed ▁for ▁Sa udi ▁Arab ia ▁are ▁ext inct . ▁ ▁The ▁following ▁tags ▁are ▁used ▁to ▁highlight ▁each ▁species ' ▁conservation ▁status ▁as ▁ass essed ▁by ▁the ▁International ▁Union ▁for ▁Conserv ation ▁of ▁Nature : ▁ ▁Some ▁species ▁were ▁ass essed ▁using ▁an ▁earlier ▁set ▁of ▁criteria . ▁Species ▁ass essed ▁using ▁this ▁system ▁have ▁the ▁following ▁instead ▁of ▁near ▁threatened ▁and ▁least ▁concern ▁categories : ▁ ▁Sub class : ▁Th eria ▁ ▁In frac lass : ▁E uther ia ▁ ▁Order : ▁Hy rac o idea ▁( hy ra xes ) ▁ ▁The ▁hy ra xes ▁are ▁any ▁of ▁four ▁species ▁of ▁fairly ▁small , ▁thick set , ▁her b iv orous ▁m amm als ▁in ▁the ▁order ▁Hy rac o idea . ▁About ▁the ▁size ▁of ▁a ▁domestic ▁cat ▁they ▁are ▁well - fur red , ▁with ▁rounded ▁bodies ▁and ▁a ▁st um py ▁tail . ▁They ▁are ▁native ▁to ▁Africa ▁and ▁the ▁Middle ▁East . ▁ ▁Family : ▁Pro c avi idae ▁( hy ra xes ) ▁Gen us : ▁Pro c avia ▁ ▁Cape ▁hy ra x , ▁Pro c avia ▁cap ensis ▁L C ▁ ▁Order : ▁Sir enia ▁( man ate es ▁and ▁d ug ongs ) ▁ ▁Sir enia ▁is ▁an ▁order ▁of ▁fully ▁aqu atic , ▁her b iv orous ▁m amm als ▁that ▁inhab it