▁( C . ▁amb ly rh yn cho ides ), ▁the ▁black tip ▁sh ark ▁( C . ▁lim b atus ), ▁and ▁the ▁Australian ▁black tip ▁sh ark ▁( C . ▁til st oni ). ▁ ▁Description ▁The ▁body ▁of ▁the ▁cre ek ▁wh aler ▁is ▁sp ind le - sh aped ▁and ▁rather ▁stock y . ▁The ▁long ▁sn out ▁has ▁a ▁narrow ly ▁par abol ic ▁shape ▁and ▁large ▁nost r ils ▁preced ed ▁by ▁small , ▁ni pp le - sh aped ▁f laps ▁of ▁skin . ▁The ▁eyes ▁are ▁circular ▁and ▁of ▁medium ▁size , ▁and ▁are ▁equ ipped ▁with ▁n ict it ating ▁memb ran es . ▁The ▁arch ed ▁mouth ▁has ▁very ▁short ▁fur rows ▁at ▁the ▁corners . ▁There ▁are ▁ 3 0 ▁upper ▁and ▁ 2 8 – 3 0 ▁lower ▁to oth ▁rows . ▁The ▁upper ▁teeth ▁are ▁long ▁and ▁tri angular ▁with ▁strongly ▁ser r ated ▁edges , ▁and ▁become ▁increasing ▁ang led ▁towards ▁the ▁sides ▁of ▁the ▁j aw . ▁The ▁lower ▁teeth ▁are ▁sl ender ▁and ▁u pr ight ▁with ▁fin ely ▁ser r ated ▁edges . ▁The ▁five ▁pairs ▁of ▁g ill ▁sl its ▁are ▁short . ▁ ▁The ▁p ector al ▁fins ▁are ▁distinct ively ▁large ▁and ▁tri angular , ▁with ▁rounded ▁to ▁pointed ▁tips . ▁The ▁large ▁first ▁d ors al ▁fin ▁origin ates ▁over ▁the ▁rear ▁of ▁the ▁p ector al ▁fin ▁bases . ▁The ▁second ▁d ors al ▁fin ▁is ▁relatively ▁tall ▁and ▁long ,