﻿Orbiculoidea 
  collis 
  Clarke 
  

  

  Fig. 
  i 
  Exterior 
  of 
  pedicle 
  valve 
  

  

  2, 
  3 
  A 
  brachial 
  valve 
  and 
  its 
  profile 
  

   Locality: 
  Ponta 
  Grossa, 
  Brazil 
  

  

  