▁The ▁int est inal ▁c eca ▁vary ▁from ▁almost ▁straight ▁to ▁sin uous . ▁The ▁ac et ab ul um ▁is ▁slightly ▁o val ▁and ▁weak ly ▁mus cular . ▁The ▁male ▁has ▁an ▁anterior ▁test is ▁and ▁a ▁posterior ▁test is . ▁The ▁test es ▁vary ▁from ▁almost ▁round ▁to ▁o val , ▁and ▁may ▁be ▁deeply ▁lo bed ▁or ▁slightly ▁ind ented . ▁No ▁cir rus ▁p ouch ▁is ▁found . ▁The ▁sem inal ▁ves icle ▁is ▁sl ender . ▁The ▁ov ary ▁is ▁tr il ob ed . ▁The ▁re cept ac ul um ▁sem in is ▁is ▁el ong ated ▁or ▁p yr iform , ▁and ▁slightly ▁tw isted , ▁and ▁situated ▁to ▁the ▁right ▁and ▁behind ▁the ▁ov ary . ▁ ▁The ▁eggs ▁are ▁o val ▁and ▁yellow ish ▁brown . ▁ ▁L ifecycle ▁The ▁first ▁intermediate ▁host ▁of ▁M . ▁conj unct us ▁is ▁a ▁fresh water ▁sn ail , ▁Am nic ola ▁lim os us . ▁ ▁The ▁second ▁intermediate ▁host ▁is ▁a ▁fresh water ▁fish : ▁Cat ost om us ▁cat ost om us , ▁Sal vel inus ▁font inal is , ▁Per ca ▁fla ves c ens , ▁or ▁Cat ost om us ▁comm erson i . ▁Met ac er car ia ▁of ▁M . ▁conj unct us ▁were ▁also ▁found ▁in ▁northern ▁pi ke ▁( E so x ▁lu cius ). ▁ ▁The ▁definit ive ▁hosts ▁are ▁fish - e ating ▁m amm als ▁such ▁as ▁domestic ▁dogs ▁( Can is ▁l up