mann ella ▁bal bo , ▁is ▁a ▁sab er to oth ▁of ▁the ▁family ▁Ever mann ell idae , ▁found ▁circum glob ally ▁in ▁tropical ▁and ▁subt rop ical ▁se as , ▁at ▁depth s ▁of ▁between ▁ 1 0 0 ▁and ▁ 1 , 0 0 0 ▁m . ▁ ▁Its ▁length ▁is ▁up ▁to ▁ 1 7   cm . ▁ ▁References ▁▁▁ ▁Tony ▁Ay ling ▁& ▁Geoff rey ▁C ox , ▁Collins ▁Guide ▁to ▁the ▁Sea ▁Fish es ▁of ▁New ▁Zealand , ▁ ▁( Will iam ▁Collins ▁Publish ers ▁Ltd , ▁A uck land , ▁New ▁Zealand ▁ 1 9 8 2 ) ▁▁ ▁Category : E ver mann ell idae ▁Category : F ish ▁described ▁in ▁ 1 8 2 0 <0x0A> </s> ▁Wille mina ▁(" Wil ma ") ▁Corn elia ▁Adri ana ▁van ▁R ijn - van ▁Hof w egen ▁( born ▁ 1 7 ▁July ▁ 1 9 7 1 ) ▁is ▁a ▁former ▁fre est yle ▁sw immer ▁from ▁the ▁Netherlands , ▁who ▁was ▁a ▁member ▁of ▁the ▁Dutch ▁Women ' s ▁ 4 × 1 0 0   m ▁fre est yle ▁relay ▁Team ▁that ▁won ▁the ▁silver ▁medal ▁at ▁the ▁ 2 0 0 0 ▁Summer ▁Olympics ▁in ▁Sydney , ▁Australia . ▁ ▁Van ▁Hof w egen ▁was ▁born ▁in ▁V la ard ingen , ▁and ▁is ▁married ▁to ▁former ▁sw immer ▁Michael ▁van ▁R ijn , ▁who ▁also ▁competed ▁for ▁Holland . ▁ ▁She ▁competed ▁in ▁the ▁silver ▁medal - win ning ▁relay