▁rather ▁than ▁the ▁immediate ▁plot ▁tw ist ▁with ▁this ▁one . ▁There ▁was ▁a ▁measured ness ▁to ▁this ▁episode ▁in ▁general ▁that ▁really ▁worked . ▁I ' d ▁like ▁to ▁see ▁it ▁continue ." ▁ ▁References ▁ ▁External ▁links ▁▁▁▁▁▁ ▁Category : G oth am ▁( season ▁ 4 ) ▁episodes ▁Category : 2 0 1 8 ▁American ▁television ▁episodes <0x0A> </s> ▁Her pet op oma ▁bell um ▁is ▁a ▁species ▁of ▁sea ▁sn ails , ▁marine ▁g ast rop od ▁m oll usc ▁in ▁the ▁family ▁Ch il od ont idae . ▁ ▁Description ▁The ▁size ▁of ▁the ▁shell ▁var ies ▁between ▁ 4   mm ▁and ▁ 5 . 5   mm . ▁The ▁small , ▁solid , ▁thick ▁shell ▁has ▁a ▁glo bose - con ic ▁shape , ▁even ly ▁gra ined ▁all ▁over . ▁it ▁is ▁black ish ▁or ▁p ink ▁varied ▁with ▁dark er . ▁It ▁is ▁imper for ate ▁when ▁adult , ▁and ▁has ▁a ▁gro ove ▁at ▁the ▁place ▁of ▁the ▁um bil icus . ▁The ▁short ▁sp ire ▁is ▁con ic . ▁The ▁ap ical ▁wh or l ▁is ▁smooth , ▁the ▁following ▁wh or l ▁has ▁three ▁gran ose ▁li ra e , ▁the ▁next ▁with ▁ 3 ▁or ▁ 4 ; ▁the ▁pen ult imate ▁has ▁ 7 ▁or ▁ 8 ▁equal , ▁gra ined ▁li ra e . ▁The ▁inter st ices ▁are ▁narrow . ▁The ▁body ▁wh or l ▁has ▁ten ▁such ▁li ra e . ▁The ▁tele o con ch