﻿634 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.44. 
  

  

  cement; 
  aperture 
  consisting 
  of 
  a 
  series 
  of 
  smaD 
  openings 
  running 
  

   from 
  the 
  inner 
  margin 
  of 
  the 
  apertural 
  face 
  to 
  the 
  highest 
  point 
  at 
  

   the 
  distal 
  end 
  of 
  the 
  test, 
  about 
  20 
  in 
  number; 
  color 
  gray. 
  

  

  Length 
  up 
  to 
  6 
  mm,, 
  breadth 
  up 
  to 
  4 
  mm., 
  thickness 
  0.5 
  mm. 
  

  

  Type-specimen.— 
  C&t. 
  No. 
  8502, 
  U.S.N.M., 
  from 
  Albatross 
  station 
  

   D5567, 
  north 
  of 
  Tawi 
  Tawi, 
  268 
  fathoms. 
  

  

  This 
  is 
  a 
  very 
  large 
  species 
  and 
  with 
  its 
  peculiar 
  aperture 
  is 
  of 
  

   more 
  than 
  usual 
  interest. 
  The 
  whole 
  test 
  is 
  rhomboid, 
  very 
  flat- 
  

   tened, 
  the 
  two 
  sides 
  seeming 
  to 
  differ, 
  one 
  being 
  slightly 
  convex, 
  the 
  

   other 
  slightly 
  concave, 
  the 
  concave 
  side 
  having 
  the 
  sutures 
  more 
  

   prominent 
  than 
  the 
  other. 
  

  

  TEXTULARIA 
  EXCAVATA, 
  new 
  species. 
  

   Plate 
  79, 
  fig. 
  5. 
  

  

  Description. 
  — 
  Test 
  rhomboid, 
  composed 
  of 
  comparatively 
  few 
  

   chambers, 
  early 
  portion 
  with 
  the 
  sides 
  angled, 
  later 
  chambers 
  

   broadly 
  rounded 
  at 
  sides, 
  chambers 
  obliquely 
  set, 
  each 
  forming 
  an 
  

   angle 
  of 
  90° 
  with 
  the 
  opposite 
  chamber, 
  distal 
  portion 
  of 
  chamber 
  

   thickened 
  and 
  tendmg 
  to 
  roll 
  back, 
  giving 
  an 
  excavated 
  appearance 
  

   to 
  the 
  test, 
  outer 
  face 
  of 
  last-formed 
  chamber 
  m 
  adult 
  broadly 
  

   rounded 
  and 
  convex; 
  aperture 
  at 
  the 
  base 
  of 
  the 
  inner 
  margin 
  of 
  

   the 
  chamber; 
  wall 
  composed 
  of 
  rather 
  fine 
  sand 
  with 
  a 
  grayish- 
  

   brown 
  color 
  due 
  partly 
  to 
  the 
  cement. 
  

  

  Length 
  up 
  to 
  2 
  mm. 
  in 
  adult 
  specimens. 
  

  

  Type-specimen. 
  — 
  Cat. 
  No. 
  8503, 
  U.S.N.M., 
  from 
  Albatross 
  station 
  

   D5236, 
  Pacific 
  Ocean, 
  east 
  coast 
  of 
  Mindanao, 
  494 
  fathoms. 
  

  

  At 
  this 
  station 
  the 
  species 
  was 
  common. 
  Its 
  shape 
  and 
  pecuhar 
  

   sculptured 
  test 
  will 
  distinguish 
  it 
  from 
  other 
  species. 
  

  

  TEXTULARIA 
  SEMIALATA, 
  new 
  species. 
  

   Plate 
  80, 
  figs. 
  6, 
  7. 
  

  

  Description. 
  — 
  Test 
  much 
  compressed, 
  of 
  numerous 
  chambers, 
  

   broader 
  than 
  high, 
  the 
  proximal 
  outer 
  angle 
  of 
  the 
  adult 
  chambers 
  

   more 
  or 
  less 
  projecting 
  and 
  extending 
  backward, 
  wall 
  of 
  fine 
  sand, 
  

   very 
  smoothly 
  finished; 
  aperture 
  at 
  the 
  inner 
  margin 
  of 
  the 
  chamber; 
  

   color 
  gray. 
  

  

  Length 
  about 
  1 
  mm. 
  

  

  Type-specimen. 
  — 
  Cat. 
  No. 
  8504, 
  U.S.N.M., 
  from 
  Albatross 
  station 
  

   D5214, 
  east 
  of 
  Masbate 
  Island, 
  218 
  fathoms. 
  

  

  This 
  species 
  in 
  some 
  of 
  its 
  characters 
  resembles 
  Bolivina 
  beyrichii 
  

   Reuss. 
  It 
  is 
  a 
  true 
  Textularia, 
  however, 
  and 
  has 
  many 
  points 
  in 
  

   which 
  it 
  differs 
  from 
  that 
  species. 
  There 
  is 
  a 
  considerable 
  difi'erence 
  

   in 
  the 
  microspheric 
  and 
  megalospheric 
  forms, 
  both 
  of 
  which 
  are 
  here 
  

   figured. 
  The 
  microspheric 
  form 
  is 
  narrow 
  at 
  the 
  beginning 
  and 
  

  

  