﻿6 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol.67 
  

  

  SIPHOGENERINA 
  RAPHANUS 
  (Parker 
  and 
  Jones), 
  var. 
  TROPICA, 
  new 
  variety 
  

  

  Plate 
  1, 
  fig. 
  5; 
  plate 
  5, 
  figs. 
  7, 
  8 
  

  

  Description. 
  — 
  Variety 
  differing 
  from 
  the 
  typical 
  in 
  the 
  shape 
  of 
  the 
  

   test, 
  which 
  is 
  tapering, 
  wall 
  thicker, 
  the 
  sutures 
  less 
  distinct, 
  and 
  the 
  

   apertural 
  end 
  with 
  a 
  definite 
  neck 
  and 
  flaring 
  phi 
  aline 
  lip. 
  

  

  This 
  is 
  the 
  variety 
  figured 
  by 
  Brady 
  in 
  the 
  Challenger 
  Report 
  7 
  

   and 
  which 
  I 
  have 
  figured. 
  8 
  

  

  This 
  variety 
  so 
  far 
  as 
  known 
  is 
  confined 
  to 
  the 
  Pacific 
  in 
  shallow 
  

   water 
  about 
  coral 
  reefs. 
  Type 
  specimens 
  are 
  from 
  Albatross 
  D 
  5178 
  

   in 
  78 
  fathoms 
  near 
  Romblon. 
  

  

  SIPHOGENERINA 
  RAPHANUS 
  (Parker 
  and 
  Jones), 
  var. 
  TRANSVERSUS 
  Cushman 
  

  

  Plate 
  1, 
  fig. 
  6 
  

  

  Siphogenerina 
  raphanus 
  (Parker 
  and 
  Jones), 
  var. 
  transversus 
  Cushman, 
  

   Bull. 
  103, 
  U. 
  S. 
  Nat. 
  Mus., 
  1918. 
  p. 
  64, 
  pi. 
  22, 
  fig. 
  8. 
  

  

  Description. 
  — 
  Test 
  subcylindrical, 
  composed 
  of 
  comparatively 
  few 
  

   chambers, 
  the 
  earlier 
  ones 
  spirally 
  arranged, 
  later 
  and 
  greater 
  por- 
  

   tion 
  of 
  the 
  test 
  uniserial, 
  sutures 
  very 
  prominently 
  indented, 
  between 
  

   the 
  longitudinal 
  costae 
  which 
  are 
  few 
  in 
  number; 
  aperture 
  with 
  a 
  

   short 
  cylindrical 
  neck, 
  lip 
  not 
  evident. 
  

  

  Length 
  of 
  type 
  specimen 
  1.25 
  mm.; 
  breadth 
  0.54 
  mm. 
  

  

  This 
  variety 
  was 
  originally 
  described 
  from 
  the 
  Culebra 
  formation 
  

   of 
  the 
  Panama 
  Canal 
  Zone 
  in 
  dark 
  clay, 
  north 
  of 
  Pedro 
  Miguel 
  

   Locks. 
  I 
  have 
  material 
  of 
  this 
  same 
  variety 
  from 
  Brasso, 
  Trinidad, 
  

   British 
  West 
  Indies, 
  collected 
  by 
  F. 
  W. 
  Penny. 
  

  

  This 
  is 
  related 
  to 
  S. 
  Jcleinpelli 
  Cushman, 
  but 
  the 
  costae 
  are 
  fewer 
  

   and 
  stronger, 
  and 
  the 
  indented 
  portions 
  below 
  the 
  sutures 
  deeper. 
  

  

  SIPHOGENERINA 
  COLLOMI 
  Cushman 
  

  

  Siphogenerina 
  collomi 
  Cushman, 
  Cushman 
  Lab. 
  Foram. 
  Res., 
  vol. 
  1, 
  pt. 
  1, 
  

   1925, 
  p. 
  2, 
  pi. 
  4, 
  fig. 
  3. 
  

  

  Test 
  large 
  for 
  the 
  genus, 
  fusiform, 
  greatest 
  width 
  above 
  the 
  

   middle; 
  early 
  chambers 
  irregularly 
  spiral, 
  later 
  ones 
  uniserial, 
  dis- 
  

   tinct; 
  sutures 
  depressed, 
  strongly 
  curved, 
  extending 
  back 
  on 
  the 
  

   costae 
  to 
  a 
  considerable 
  distance; 
  test 
  ornamented 
  with 
  very 
  high, 
  

   plate-like 
  costae, 
  usually 
  ten 
  in 
  number, 
  last-formed 
  chamber 
  smooth; 
  

   aperture 
  with 
  a 
  very 
  short 
  cylindrical 
  neck 
  and 
  phialine 
  lip. 
  

  

  Length 
  up 
  to 
  1.60 
  mm.; 
  breadth 
  0.65 
  mm. 
  

  

  Type 
  specimens 
  (Cushman 
  Coll. 
  No. 
  4325) 
  from 
  Monterey 
  shale, 
  

   sec. 
  24, 
  T. 
  28 
  S., 
  R. 
  14 
  E., 
  San 
  Luis 
  Obispo 
  County, 
  California, 
  col- 
  

   lected 
  by 
  W. 
  D. 
  Kleinpell. 
  

  

  This 
  species 
  is 
  nearest 
  related 
  to 
  Siphogenerina 
  spinosa 
  Bagg 
  from 
  

   the 
  Miocene 
  of 
  Maryland 
  and 
  S. 
  lamellata 
  Cushman 
  from 
  the 
  Mio- 
  

   cene 
  of 
  Florida. 
  The 
  species 
  is 
  named 
  for 
  Roy 
  E. 
  Collom, 
  well- 
  

   known 
  geologist 
  of 
  California. 
  

  

  ? 
  PI. 
  75, 
  figs. 
  23, 
  24. 
  

  

  • 
  Bull. 
  100, 
  U. 
  S. 
  Nat. 
  Mu«., 
  vol. 
  4, 
  1900, 
  pi. 
  Sfi. 
  fig. 
  7. 
  

  

  