pressed ▁and ▁narrow . ▁There ▁is , ▁besides , ▁a ▁fine , ▁super f icial , ▁secondary ▁sculpt ure ▁of ▁slightly ▁ob lique ▁longitud inal ▁minute ▁wr ink les , ▁which ▁are ▁continued ▁over ▁the ▁peri ph ery ▁upon ▁the ▁base , ▁forming ▁there ▁a ▁fin ely ▁sh ag reen ed ▁pattern ▁by ▁the ▁intersection ▁of ▁fine ▁increment al ▁st ride . ▁The ▁base ▁of ▁the ▁shell ▁is ▁rather ▁more ▁convex ▁than ▁in ▁the ▁typical ▁Tro chus ▁mac ul atus , ▁and ▁its ▁outer ▁portion ▁is ▁nearly ▁free ▁from ▁spir al ▁line . ▁These ▁number ▁about ▁six . ▁They ▁are ▁fin ely , ▁closely ▁c ren ulated ▁by ▁the ▁wr ink les ▁of ▁the ▁surface . ▁The ▁outer ▁lip ▁of ▁the ▁a pert ure ▁is ▁not ▁c ren ulated , ▁the ▁other ▁characters ▁of ▁the ▁a pert ure ▁and ▁col um ella ▁are ▁precisely ▁as ▁in ▁Tro chus ▁inc rass atus . ▁ ▁Distribution ▁This ▁species ▁occurs ▁in ▁the ▁Indian ▁Ocean ▁off ▁the ▁Mas car enes , ▁Ald ab ra ▁and ▁Ch ag os . ▁ ▁References ▁▁ ▁D riv as , ▁J .; ▁Jay , ▁M . ▁( 1 9 8 7 ). ▁Co qu ill ages ▁de ▁La ▁Ré union ▁et ▁de ▁l ' Î le ▁Maurice . ▁Collection ▁Les ▁Beaut és ▁de ▁la ▁Nature . ▁Del ach aux ▁et ▁N iest lé : ▁Ne uch ât el . ▁. ▁ 1 5 9 ▁pp . ▁ ▁External ▁links ▁▁▁ ▁fl amm ul atus ▁Category : G ast rop ods ▁described