▁made ▁up ▁of ▁several ▁species ▁grouped ▁under ▁one ▁scientific ▁name . ▁ ▁This ▁f rog ▁lives ▁in ▁the ▁leaf ▁l itter ▁on ▁the ▁flo ors ▁of ▁primary ▁and ▁secondary ▁for ests . ▁It ▁is ▁adapt able ▁and ▁is ▁sometimes ▁seen ▁in ▁gard ens . ▁ ▁References ▁ ▁Category : A den om era ▁Category : End em ic ▁fa una ▁of ▁Brazil ▁Category : Am ph ib ians ▁described ▁in ▁ 1 9 7 3 ▁Category : T ax onomy ▁articles ▁created ▁by ▁Pol bot <0x0A> </s> ▁The ▁PC ▁ 5 0 0 ▁( P anz ers pr eng b om be ▁C yl ind r isch ) ▁or ▁cyl ind rical ▁arm or - p ier cing ▁explos ive ▁bomb ▁in ▁English ▁was ▁a ▁series ▁of ▁arm or - p ier cing ▁bomb s ▁used ▁by ▁the ▁Luft wa ffe ▁during ▁World ▁War ▁II . ▁ ▁History ▁ ▁The ▁PC ▁series ▁of ▁bomb s ▁differ ed ▁from ▁the ▁SC ▁series ▁because ▁they ▁had ▁thick ▁cases ▁for ▁en hanced ▁pen etr ation ▁of ▁arm ored ▁targets ▁like ▁war ships ▁or ▁rein for ced ▁concrete ▁fort ifications . ▁ ▁While ▁the ▁SD ▁series ▁bomb s ▁could ▁be ▁used ▁in ▁a ▁semi - arm or ▁pier cing ▁role ▁the ▁PC ▁series ▁of ▁bomb s ▁were ▁specifically ▁designed ▁as ▁arm or - p ier cing ▁bomb s . ▁ ▁Since ▁they ▁had ▁th icker ▁hard ened ▁steel ▁cases ▁their ▁charge ▁to ▁weight ▁ratio ▁was ▁only ▁ 2 0 % ▁of ▁their ▁total ▁weight . ▁ ▁Bomb