▁mouth ▁is ▁orient ated ▁vent r ally , ▁half way ▁between ▁the ▁anterior ▁end ▁and ▁the ▁ring ▁fur row . ▁The ▁live ▁spec imen ▁exhib ited ▁an ▁e pid erm al ▁vent ral ▁g land ular ▁network ▁branch ing ▁over ▁two - third s ▁of ▁the ▁vent ral ▁surface . ▁Gam etes ▁are ▁present ▁d ors ally ▁and ▁vent r ally ▁in ▁the ▁body ▁wall . ▁T issues ▁contain ▁ex ogen ous ▁DNA ▁corresponding ▁to ▁a ▁b ival ve ▁m oll usk , ▁the ▁ves ic omy id ▁Cal y pt og ena ▁pac ifica . ▁ ▁Ph y log eny ▁ ▁Com parison ▁of ▁mit och ond rial ▁DNA ▁and ▁protein ▁sequences ▁showed ▁that ▁the ▁species ▁X . ▁ch ur ro ▁is ▁the ▁sister ▁group ▁to ▁X . ▁prof unda . ▁In ▁turn , ▁these ▁two ▁species ▁share ▁evolution ary ▁aff in ities ▁with ▁X . ▁mon st ros a ▁into ▁a ▁cla de ▁of ▁' deep - water ' ▁tax a . ▁ ▁References ▁▁ ▁Category : X en aco el om or pha ▁Category : Anim als ▁described ▁in ▁ 2 0 1 6 <0x0A> </s> ▁Abr ams , ▁formerly ▁Harry ▁N . ▁Abr ams , ▁Inc . ▁( H NA ), ▁is ▁an ▁American ▁publish er ▁of ▁art ▁and ▁illustrated ▁books , ▁children ' s ▁books , ▁and ▁station ery . ▁ ▁The ▁enter prise ▁is ▁a ▁subs idi ary ▁of ▁the ▁French ▁publish er ▁La ▁Mart ini ère ▁Gr oupe . ▁Run ▁by ▁President ▁and ▁CE O ▁Michael