0 % ▁of ▁those ▁evaluated ) ▁are ▁listed ▁as ▁data ▁def ic ient , ▁meaning ▁there ▁is ▁ins u fficient ▁information ▁for ▁a ▁full ▁assess ment ▁of ▁conservation ▁status . ▁As ▁these ▁species ▁typically ▁have ▁small ▁distributions ▁and / or ▁populations , ▁they ▁are ▁intr ins ically ▁likely ▁to ▁be ▁threatened , ▁according ▁to ▁the ▁IU CN . ▁While ▁the ▁category ▁of ▁data ▁def ic ient ▁indicates ▁that ▁no ▁assess ment ▁of ▁ext inction ▁risk ▁has ▁been ▁made ▁for ▁the ▁tax a , ▁the ▁IU CN ▁notes ▁that ▁it ▁may ▁be ▁appropriate ▁to ▁give ▁them ▁" the ▁same ▁degree ▁of ▁attention ▁as ▁threatened ▁tax a , ▁at ▁least ▁until ▁their ▁status ▁can ▁be ▁ass essed ." ▁ ▁This ▁is ▁a ▁complete ▁list ▁of ▁end anger ed ▁ar th rop od ▁species ▁and ▁sub species ▁as ▁evaluated ▁by ▁the ▁IU CN . ▁ ▁Cent ip edes ▁ ▁Ara chn ids ▁There ▁are ▁ 7 2 ▁ara chn id ▁species ▁ass essed ▁as ▁end anger ed . ▁ ▁Har vest men ▁ ▁Sp iders ▁ ▁Other ▁ara chn id ▁species ▁ ▁Branch iop oda ▁ ▁Mill ip edes ▁ ▁Mal ac ost rac ans ▁Mal ac ost rac a ▁includes ▁c rab s , ▁lo bst ers , ▁c ray fish , ▁sh rim p , ▁kr ill , ▁wood lice , ▁and ▁many ▁others . ▁There ▁are ▁ 1 7 0 ▁mal ac ost rac an ▁species ▁and ▁six ▁mal ac ost rac an ▁sub species ▁ass essed ▁as ▁end anger ed . ▁