﻿JUKES-BROWNE 
  : 
  OiSr 
  NOMENCLATURE 
  OF 
  TENERID^. 
  247 
  

  

  The 
  genus 
  Cytherea 
  (Bolten) 
  will 
  include 
  the 
  following 
  sections: 
  — 
  

  

  Cytherea 
  (s.s.), 
  with 
  type 
  V. 
  puerpiira, 
  Linn. 
  

  

  Section 
  1. 
  Clausitm 
  (Brown) 
  ; 
  type, 
  V. 
  verrucosa, 
  Linn. 
  

  

  Section 
  2. 
  Ventricola 
  (Romer) 
  ; 
  type, 
  V. 
  rugosa, 
  Gmel. 
  

  

  Subgenus 
  ^/•;fe?irt 
  (Conrad) 
  ; 
  type, 
  Venus 
  staminea, 
  Conrad, 
  1842. 
  

  

  { 
  — 
  Antigona, 
  Schumacher, 
  non 
  Antigonus, 
  Huhner, 
  1816.) 
  

  

  Subgenus 
  Circomphalus 
  (Mor(i\\) 
  ; 
  type, 
  V. 
  plicata, 
  Gmel. 
  

  

  Gafeakium. 
  

  

  The 
  assignation 
  of 
  this 
  name 
  requires 
  discussion, 
  because 
  it 
  appears 
  

   to 
  have 
  been 
  fixed 
  by 
  Messrs. 
  H. 
  and 
  A. 
  Adams 
  in 
  1857, 
  and 
  if 
  this 
  

   is 
  so 
  Dr. 
  Dall's 
  more 
  recent 
  selection 
  of 
  a 
  different 
  type 
  cannot 
  be 
  

   allowed. 
  

  

  As 
  already 
  mentioned, 
  the 
  name 
  was 
  employed 
  by 
  Bolten 
  for 
  one 
  

   of 
  his 
  divisions 
  of 
  the 
  Liunean 
  Venus, 
  but 
  he 
  only 
  included 
  three 
  

   species 
  under 
  it, 
  and 
  these 
  only 
  agree 
  in 
  having 
  a 
  strong 
  cancellate 
  

   structure. 
  Moreover, 
  they 
  possess 
  no 
  character 
  by 
  which 
  they 
  can 
  

   be 
  distinguished 
  as 
  a 
  group 
  from 
  his 
  next 
  division, 
  which 
  he 
  called 
  

   Cytherea. 
  It 
  happens, 
  however, 
  that 
  the 
  first 
  species 
  is 
  Venus 
  

   fimbriata 
  (Gmel.), 
  which 
  Cuvier 
  afterwards 
  called 
  Corhis 
  ; 
  the 
  second 
  

   is 
  V. 
  pectinata 
  (Gmel.) 
  and 
  varieties 
  ; 
  the 
  third 
  is 
  V. 
  reticulata 
  (Gmel.). 
  

  

  When 
  Dr. 
  Dall 
  was 
  dealing 
  with 
  Bolten's 
  divisions 
  of 
  Venus 
  in 
  

   1902, 
  he 
  seems 
  to 
  have 
  thought 
  that 
  he 
  was 
  at 
  liberty 
  to 
  make 
  his 
  

   own 
  choice 
  of 
  a 
  type 
  for 
  each 
  and 
  all 
  of 
  them, 
  and 
  acting 
  in 
  the 
  

   spirit 
  of 
  the 
  liecommendations 
  of 
  the 
  International 
  Commission 
  he 
  

   sought 
  to 
  displace 
  the 
  latest 
  formed 
  generic 
  name. 
  Thus, 
  of 
  Gafrarium 
  

   he 
  wrote: 
  ''■Gafrarium 
  (Bolten) 
  is 
  by 
  this 
  time 
  [1817] 
  relieved 
  of 
  

   the 
  genus 
  Corhis, 
  and 
  retains 
  only 
  V. 
  reticulata 
  and 
  the 
  Circes 
  of 
  

   the 
  group 
  later 
  called 
  Crista 
  by 
  Romer. 
  V. 
  reticulata 
  belongs 
  to 
  

   Cytherea 
  (Bolten)." 
  These 
  last 
  words 
  mean 
  that 
  by 
  his 
  selection 
  

   of 
  V. 
  puerpura 
  as 
  the 
  type 
  of 
  Bolten's 
  Cytherea, 
  V. 
  reticulata 
  belongs 
  

   to 
  that 
  genus. 
  Thus 
  he 
  is 
  led 
  to 
  make 
  V. 
  pectinata 
  the 
  type 
  of 
  

   Gafrarium, 
  Avhich 
  consequently 
  in 
  his 
  scheme 
  becomes 
  a 
  genus, 
  

   Avith 
  the 
  Circe 
  of 
  Schumacher 
  as 
  a 
  subgenus 
  (type 
  C. 
  litterata). 
  

  

  This 
  selection 
  would 
  be 
  perfectly 
  correct 
  and 
  unalterable 
  if 
  no 
  

   previous 
  selection 
  of 
  a 
  type 
  had 
  been 
  made. 
  Dr. 
  Dall, 
  however, 
  

   appears 
  to 
  have 
  overlooked 
  the 
  fact 
  that 
  Messrs. 
  H. 
  and 
  A. 
  Adams 
  ^ 
  

   definitely 
  adopted 
  Bolten's 
  name 
  Gafrarium 
  as 
  a 
  genus 
  in 
  the 
  place 
  

   of 
  Corhis, 
  giving 
  V. 
  fimhriata 
  as 
  their 
  figured 
  example. 
  It 
  is 
  true 
  

   that 
  they 
  did 
  not 
  definitely 
  designate 
  this 
  species 
  as 
  the 
  type 
  of 
  

   the 
  genus, 
  and 
  that 
  they 
  recognized 
  four 
  other 
  species 
  of 
  Gafrarium 
  

   (or 
  Corhis), 
  but 
  these 
  so-called 
  species 
  are 
  now 
  admitted 
  to 
  he 
  merely 
  

   varieties 
  of 
  V. 
  fimhriata, 
  and 
  Dr. 
  Dall 
  himself, 
  writing 
  of 
  the 
  genus 
  

   Corhis 
  in 
  his 
  " 
  Synopsis 
  of 
  the 
  Lucinacea",^ 
  says 
  : 
  " 
  The 
  type 
  and 
  sole 
  

   recent 
  species 
  is 
  Venus 
  fimhriata, 
  Linn." 
  

  

  Hence 
  the 
  genus, 
  by 
  whatever 
  name 
  it 
  is 
  called, 
  is 
  monotypical, 
  

   and 
  the 
  Messrs. 
  Adams 
  applied 
  Bolten's 
  name 
  Gafrarium 
  to 
  a 
  species 
  

  

  ^ 
  Genera 
  of 
  Recent 
  Molkisca, 
  vol. 
  ii, 
  p. 
  470, 
  1857. 
  

   - 
  Proc. 
  U.S. 
  Nat. 
  Museum, 
  1901, 
  p. 
  816. 
  

  

  