﻿116 
  Dr. 
  J. 
  C. 
  Melvill 
  a7id 
  Mr. 
  R. 
  Standen 
  on 
  

  

  Rapid 
  Point, 
  also 
  at 
  low 
  tide. 
  

  

  The 
  specimens 
  from 
  the 
  former 
  localitj 
  more 
  assimilate 
  

   the 
  type. 
  It 
  is 
  impossible 
  to 
  separate 
  falklandiana 
  as 
  a 
  

   genuine 
  species. 
  

  

  Megatehennus 
  patagonicus, 
  Streh. 
  

  

  ? 
  Megatehennus 
  patacionicns, 
  H. 
  Strebel, 
  Mollusk. 
  der 
  Mag-alh.aen- 
  

   Provinz, 
  Zool. 
  Jahrb. 
  Band 
  xxv., 
  Jena 
  (1907). 
  , 
  

  

  Rapid 
  Point, 
  at 
  low 
  water 
  ; 
  also 
  Roy 
  Cove. 
  |^Several 
  

   examples. 
  

  

  In 
  a 
  j)revious 
  paper 
  (Journ. 
  of 
  Conch, 
  x. 
  p. 
  45, 
  1901) 
  we 
  

   mentioned 
  this 
  species 
  under 
  the 
  name 
  of 
  Fissnrellidea 
  

   liiantaJa, 
  Lam. 
  {non 
  Reeve). 
  This 
  was 
  seven 
  years 
  before 
  

   it 
  was 
  properly 
  differentiated 
  and 
  named 
  by 
  Dr. 
  Strebeh 
  It 
  

   would 
  appear 
  to 
  be 
  tiie 
  only 
  one 
  of 
  its 
  kindred 
  inhabiting 
  

   this 
  region. 
  

  

  Section 
  Azygobrancuiata. 
  

  

  Fam. 
  Trochidse. 
  

  

  Photinula 
  tceniata 
  (Wood). 
  

  

  Trochus 
  tcBniaius, 
  Wood, 
  Index 
  Snppl. 
  pi. 
  v. 
  fig. 
  12. 
  

   Margarita 
  tceniata, 
  Reeve, 
  Conch, 
  icon. 
  xx. 
  fig. 
  4 
  ; 
  Kiener, 
  xi. 
  p. 
  319, 
  

   pi. 
  c. 
  fig. 
  2. 
  

  

  Roy 
  (yove, 
  2-1 
  fathoms, 
  on 
  the 
  alga 
  Macrocystis 
  pijrifera, 
  

  

  Ag. 
  

  

  Var. 
  ccerulescens 
  (King). 
  

  

  Margarita 
  ccerulescens, 
  King, 
  Zool. 
  Journ. 
  v. 
  p. 
  346, 
  fig. 
  54 
  (1S32) 
  ; 
  

  

  Sowerby, 
  in 
  Reeve, 
  Couch. 
  Icon. 
  xx. 
  fig. 
  12. 
  

   Trochus 
  ccerulescens, 
  Pliilippi, 
  Couch. 
  Cab. 
  p. 
  250, 
  t. 
  xxxvii. 
  fig. 
  11. 
  

   Photinula 
  ccerulescens, 
  Ad. 
  Gen. 
  Moll. 
  i. 
  p. 
  427. 
  

  

  Occasionally, 
  with 
  the 
  type. 
  

  

  Photinula 
  violacea 
  (Iviiig). 
  

  

  Margarita 
  violacea. 
  King, 
  Zool. 
  Journ. 
  v. 
  p. 
  346 
  (1832) 
  ; 
  Sowerby, 
  

  

  Couch. 
  Illustr. 
  figs. 
  11, 
  12 
  ; 
  in 
  Reeve, 
  Conch. 
  Icon. 
  xx. 
  fig. 
  5/ 
  

   Trochus 
  violaceus, 
  Philippi, 
  Conch. 
  Cab. 
  p. 
  254, 
  t. 
  xxxvii. 
  fig. 
  18. 
  

  

  Also 
  at 
  Roy 
  Cove, 
  with 
  P. 
  tceniata 
  (Wood). 
  

  

  Suborder 
  MONOTOCARDIA. 
  

   Section 
  (a) 
  Ptexoglossa. 
  

   Fam. 
  Scalidae. 
  

   Sccila 
  magcUanica, 
  Pliih 
  

   Scalaria 
  7nagella)uca, 
  Philippi. 
  Archiv 
  fiir 
  Naturg. 
  1845^ 
  p. 
  46, 
  . 
  

  

  