▁as ▁Slov ack a ▁j ama ▁(- 1 3 2 0 ▁m ), ▁Olimp ▁(- 5 3 1 ▁m ) ▁and ▁V ele b ita ▁(- 1 0 2 6 ▁m ), ▁and ▁is ▁currently ▁considered ▁en demic ▁to ▁Cro atia . ▁ ▁This ▁le ech ▁inhab its ▁under ground ▁streams ▁and ▁has ▁several ▁adapt ations ▁to ▁deal ▁with ▁a ▁r he oph il ic ▁and ▁tro glob it ic ▁l ifest yle . ▁The ▁le ech ▁la cks ▁eyes , ▁has ▁pale ▁skin , ▁and ▁strong ▁su ck ers ▁to ▁help ▁it ▁move ▁around ▁its ▁environment . ▁A ▁flat ▁body ▁prevents ▁it ▁from ▁being ▁swe pt ▁away ▁by ▁the ▁current . ▁The ▁le ech ▁moves ▁in ▁a ▁c ater p ill ar - like ▁motion , ▁altern ating ▁between ▁its ▁posterior ▁and ▁or al ▁su cker . ▁There ▁are ▁several ▁extrem ities ▁pro tr ud ing ▁from ▁the ▁sides ▁that ▁are ▁the or ized ▁to ▁be ▁g ills . ▁This ▁le ech ▁grows ▁about ▁ 2 5 ▁to ▁ 4 0   mm ▁( 1 ▁to ▁ 1 . 6 ▁in ) ▁in ▁length ▁and ▁can ▁handle ▁temper atures ▁as ▁low ▁as ▁ 4 – 6   ° C ▁( 3 9 . 2 – ▁ 4 2 . 8   ° F ). ▁ ▁References ▁▁ ▁Category : Le ech es ▁Category : An nel id ▁gener a <0x0A> </s> ▁The ▁ 1 9 9 0 ▁Wales ▁rugby ▁union ▁tour ▁of ▁Nam ib ia ▁was ▁a ▁series ▁of ▁rugby ▁union ▁matches