1 9 9 7 ), ▁Autom ata ▁and ▁Comput ability , ▁Springer . ▁ ▁Oh le bus ch , ▁E . ▁( 2 0 0 2 ), ▁Advanced ▁Top ics ▁in ▁Term ▁R ew rit ing , ▁Springer . ▁ ▁Category : T uring ▁machine <0x0A> </s> ▁The ▁deep se a ▁sk ate ▁( B ath y ra ja ▁aby ss icola ) ▁is ▁a ▁species ▁of ▁soft n ose ▁sk ate , ▁in ▁the ▁family ▁Ar h yn ch ob at idae , ▁found ▁in ▁deep ▁water ▁from ▁ 3 6 2 ▁to ▁ 2 , 9 0 6 ▁m , ▁usually ▁on ▁the ▁contin ental ▁slope . ▁They ▁are ▁distributed ▁from ▁off ▁northern ▁B aja ▁California ▁around ▁Cor on ado ▁Island ▁and ▁Cort es ▁Bank , ▁north ▁to ▁the ▁Ber ing ▁Sea , ▁and ▁west ▁to ▁Japan . ▁It ▁is ▁fairly ▁common ▁below ▁ 1 , 0 0 0 ▁m , ▁and ▁is ▁taken ▁as ▁by catch ▁in ▁deep water ▁tra w ls ▁and ▁tra ps . ▁The ▁species ▁name ▁aby ss icola ▁comes ▁from ▁the ▁Greek ▁aby ss os ▁meaning ▁" bottom less ", ▁and ▁col a ▁meaning ▁" l iving ▁at ▁depth s ". ▁ ▁The ▁p ector al ▁fin ▁disc ▁of ▁the ▁deep se a ▁sk ate ▁has ▁a ▁moder ately ▁tri angular ▁anterior ▁margin , ▁a ▁broad ly ▁rounded ▁posterior ▁margin , ▁and ▁rounded ▁tips . ▁The ▁disc ▁is ▁slightly ▁wider ▁than ▁it ▁is ▁long . ▁One ▁to ▁five ▁n uch al ▁th orn s ▁are ▁placed