﻿smith: 
  on 
  the 
  gunus 
  ebato. 
  15 
  

  

  figure, 
  which 
  is 
  evidently 
  badly 
  drawn, 
  assist 
  in 
  its 
  determination. 
  

   However, 
  not 
  having 
  seen 
  specimens 
  from 
  the 
  Cape 
  Yerde 
  Islands, 
  

   I 
  hesitate 
  to 
  give 
  an 
  opinion 
  upon 
  the 
  identity 
  of 
  this 
  shell 
  with 
  

   Maugerce. 
  M. 
  Germain 
  kindly 
  informs 
  me 
  that 
  he 
  has 
  been 
  unable 
  

   to 
  find 
  this 
  species 
  in 
  the 
  Paris 
  Museum, 
  and 
  that 
  Dr. 
  Rochebrune 
  

   does 
  not 
  know 
  where 
  the 
  specimens 
  are 
  which 
  he 
  described. 
  

  

  4. 
  Eeato 
  maeginata, 
  Morch. 
  

  

  M-ato 
  marginata, 
  Morch, 
  Malak. 
  Blatt., 
  1860, 
  vol. 
  vii, 
  p: 
  85. 
  

  

  ITab. 
  — 
  Bocorones 
  Island, 
  near 
  Panama. 
  

  

  Briefly 
  described 
  and 
  unfigured. 
  Colour 
  not 
  stated. 
  Considered 
  

   by 
  Tryon 
  probably 
  the 
  same 
  as 
  E. 
  columbella. 
  In 
  my 
  opinion 
  it 
  

   may 
  be 
  the 
  same 
  as 
  E. 
  Maugerce. 
  On 
  inquiry 
  of 
  Dr. 
  Levinsen, 
  of 
  

   the 
  Copenhagen 
  Museum, 
  he 
  writes 
  : 
  " 
  We 
  cannot 
  find 
  Erato 
  

   marginata 
  either 
  in 
  our 
  collection 
  or 
  in 
  our 
  registers." 
  

  

  5. 
  Erato 
  coltjmbella, 
  Menke. 
  

  

  Erato 
  Golumlella, 
  Menke, 
  Zeitschr. 
  f. 
  Malak., 
  1847, 
  p. 
  183 
  ; 
  Sowerby 
  (h), 
  

   p. 
  83, 
  figs. 
  31, 
  32; 
  Ileeve 
  (^), 
  figs. 
  \a-h 
  ; 
  Weinkauff, 
  p. 
  148, 
  

   pi. 
  XXV, 
  figs. 
  9, 
  12 
  (9 
  bad); 
  Tryon, 
  p. 
  10, 
  pi. 
  iv, 
  fig. 
  48 
  (after 
  

   Sowerby). 
  

  

  E. 
  leucopJma, 
  Gould, 
  Boston 
  Journ. 
  Nat. 
  Hist., 
  vol. 
  vi, 
  p. 
  386, 
  pi. 
  xiv, 
  

   fig. 
  20; 
  Otia, 
  p. 
  187. 
  

   Hab. 
  — 
  ^Mazatlan 
  (Menke); 
  Santa 
  Barbara 
  (Gould); 
  San 
  Diego 
  

  

  (Gripp 
  and 
  M. 
  Smith) 
  ; 
  Monterey 
  Bay 
  (Berry). 
  

  

  I 
  have 
  placed 
  E. 
  leucophma 
  as 
  a 
  synonym 
  of 
  this 
  species 
  on 
  the 
  

  

  authority 
  of 
  Carpenter, 
  Tryon, 
  and 
  others. 
  Both 
  the 
  figure 
  and 
  

  

  description 
  offer 
  some 
  points 
  of 
  difference. 
  

  

  6. 
  Erato 
  vitellina, 
  Hinds. 
  

  

  Erato 
  vitellina. 
  Hinds, 
  Zool. 
  Sulphur, 
  p. 
  46, 
  pi. 
  xiii, 
  figs. 
  22, 
  23 
  ; 
  

   Sowerby 
  {l\ 
  p. 
  83, 
  figs. 
  27, 
  28 
  ; 
  Reeve 
  {b), 
  figs, 
  'ia-l 
  ; 
  Weinkaufl, 
  

   p. 
  148, 
  pi. 
  XXV, 
  figs, 
  6, 
  7 
  ; 
  Tryon, 
  p. 
  10, 
  pi. 
  iv, 
  figs. 
  49, 
  50. 
  

   Sab. 
  — 
  California, 
  Santa 
  Barbara 
  southward 
  ; 
  San 
  Diego 
  (Gripp 
  and 
  

   M. 
  Smith) 
  ; 
  Monterey 
  Bay 
  (Berry). 
  

  

  The 
  largest 
  species 
  of 
  the 
  genus, 
  and, 
  like 
  the 
  rest, 
  very 
  variable 
  in 
  

   size, 
  varying 
  from 
  10 
  to 
  15 
  mm. 
  in 
  length. 
  Mr. 
  Joseph 
  Keep, 
  in 
  his 
  

   little 
  book 
  on 
  " 
  West 
  American 
  Shells 
  ", 
  calls 
  this 
  species 
  the 
  " 
  Veally 
  

   Erato 
  ", 
  but 
  it 
  seems 
  to 
  me 
  that 
  Reeve's 
  designation 
  of 
  the 
  species, 
  

   the 
  " 
  Yolk 
  Erato 
  ", 
  is 
  preferable. 
  I 
  fail 
  to 
  see 
  that 
  this 
  shell 
  has 
  any 
  

   connexion 
  with 
  veal 
  or 
  a 
  young 
  calf. 
  

  

  7. 
  Erato 
  albescens, 
  Dall. 
  

   Erato 
  albescens, 
  Dall, 
  IS'autilus, 
  1905, 
  vol. 
  xviii, 
  p. 
  124. 
  

  

  Hob. 
  — 
  Deep 
  water 
  off 
  Californian 
  coast. 
  

  

  Length 
  of 
  shell, 
  15 
  mm. 
  " 
  This 
  succeeds 
  E. 
  vitellina, 
  Hinds, 
  as 
  the 
  

   largest 
  species 
  of 
  the 
  genus, 
  and 
  is 
  a 
  much 
  thinner 
  and 
  lighter 
  shell, 
  

   besides 
  differing 
  in 
  colour" 
  (Dall). 
  

  

  