﻿DEEP- 
  WA 
  TER 
  MOLL 
  USCA— 
  VERB 
  ILL 
  AXD 
  B 
  Uf^H. 
  8 
  83 
  

  

  erably 
  longer 
  than 
  the 
  anterior 
  and 
  slopes 
  pretty 
  regularly 
  and 
  gradu- 
  

   ally 
  from 
  the 
  beaks 
  to 
  the 
  posterior 
  extremity. 
  The 
  surface 
  is 
  covered 
  

   with 
  very 
  regular, 
  rather 
  coarse, 
  rounded, 
  concentric 
  ridges 
  sei)arated 
  

   by 
  deep 
  furrows 
  of 
  about 
  the 
  same 
  breadth. 
  The 
  ei)iderniis 
  is 
  light 
  

   straw 
  color, 
  only 
  slightly 
  lustrous 
  and 
  scarcely 
  iridescent. 
  The 
  hinge- 
  

   X)late 
  is 
  large 
  and 
  strong, 
  much 
  elongated 
  posteriorly, 
  the 
  two 
  parts 
  

   forming 
  a 
  very 
  obtuse, 
  curved 
  angle 
  at 
  the 
  beaks. 
  The 
  anterior 
  portion 
  

   is 
  the 
  broader, 
  much 
  the 
  shorter, 
  and 
  bears 
  about 
  nine 
  teeth, 
  of 
  which 
  

   the 
  three 
  distal 
  ones 
  are 
  nuich 
  the 
  larger 
  and 
  occupy 
  about 
  one-half 
  

   the 
  length 
  of 
  the 
  series, 
  the 
  proximal 
  ones 
  being* 
  very 
  small. 
  The 
  pos- 
  

   terior 
  portion 
  is 
  narrower 
  and 
  curved 
  throughout; 
  it 
  bears 
  seventeen 
  

   or 
  eighteen 
  teeth 
  of 
  which 
  seven 
  or 
  eight 
  proximal 
  ones 
  are 
  very 
  small 
  

   and 
  acute. 
  The 
  hinge-plate 
  becomes 
  quite 
  narrow 
  under 
  the 
  beaks 
  

   where 
  the 
  two 
  series 
  of 
  teeth 
  are 
  interrupted 
  by 
  a 
  very 
  small 
  edentu- 
  

   lous 
  space, 
  scarcely 
  wider 
  than 
  the 
  adjacent 
  teeth. 
  All 
  the 
  larger 
  teeth 
  

   are 
  rather 
  crowded 
  and 
  comi^ressed 
  in 
  the 
  direction 
  at 
  right 
  angles 
  to 
  

   the 
  line 
  of 
  the 
  hinge 
  so 
  that 
  they 
  are 
  only 
  slightly 
  V-shaped. 
  Seen 
  in 
  

   a 
  dorsal 
  view 
  they 
  appear 
  thin 
  and 
  not 
  very 
  prominent 
  above 
  the 
  mar- 
  

   gin 
  of 
  the 
  shell, 
  when 
  the 
  tips 
  are 
  broken 
  they 
  often 
  appear 
  three- 
  

   lobed. 
  The 
  ligament 
  is 
  well 
  developed 
  and 
  occupies 
  a 
  distinct, 
  sub- 
  

   marginal 
  furrow 
  behind 
  the 
  beaks. 
  The 
  muscular 
  scars 
  are 
  well 
  

   marked, 
  small 
  and 
  nearly 
  round; 
  the 
  pallial 
  line 
  is 
  interrupted 
  at 
  a 
  

   point 
  a 
  short 
  distance 
  from 
  the 
  posterior 
  muscular 
  scar 
  but 
  there 
  is 
  no 
  

   visible 
  sinus. 
  The 
  interior 
  of 
  the 
  shell 
  is 
  grayish 
  white 
  but 
  not 
  pearlj^; 
  

   the 
  ventral 
  edge 
  is 
  slightly 
  beveled. 
  

  

  Length 
  of 
  the 
  largest 
  specimen, 
  7 
  mm.: 
  height, 
  5.5 
  mm. 
  

  

  Two 
  specimens, 
  among 
  Foraminifera, 
  at 
  station 
  2385, 
  N. 
  lat. 
  28° 
  51', 
  

   W. 
  long. 
  88° 
  18', 
  in 
  730 
  fathoms, 
  188 
  ">. 
  

  

  TINDARIA 
  CUNEATA 
  (Smith) 
  Dall. 
  

  

  Malletia 
  ciineafci 
  Smith, 
  E. 
  A., 
  Report 
  Voy. 
  Challenger, 
  Zoul. 
  Lamellibranchiata, 
  

  

  XIII, 
  II. 
  247, 
  pi. 
  XX, 
  tig-8. 
  10, 
  10a, 
  1885 
  (not 
  Jeffreys). 
  

   Malletia 
  {Tindaria) 
  smithii 
  Dall, 
  Bull. 
  Mus. 
  Comp. 
  Zool., 
  XII, 
  p. 
  255, 
  1886. 
  

  

  A 
  single 
  young 
  valve, 
  among 
  Foraminifera, 
  at 
  station 
  2655, 
  IST. 
  lat. 
  

   27° 
  22', 
  W. 
  long. 
  78° 
  7' 
  30", 
  in 
  338 
  fathoms, 
  1880. 
  Off 
  Grenada 
  and 
  

   the 
  West 
  Indies, 
  in 
  390 
  to 
  1,140 
  fathoms. 
  — 
  Smith 
  and 
  Dall. 
  

  

  As 
  the 
  species 
  described 
  and 
  figured 
  by 
  Mr. 
  Smith 
  under 
  the 
  name 
  

   of 
  Malletia 
  eiineata 
  is 
  n 
  true 
  Tindaria^ 
  his 
  name 
  does 
  not 
  conflict 
  with 
  

   the 
  Malletia 
  euneata 
  of 
  Jeffreys 
  which 
  is 
  a 
  true 
  Malletia, 
  and 
  therefore 
  

   should 
  remain 
  unchanged. 
  

  

  Subgenus 
  TINDARIOPSIS 
  Verrill 
  and 
  Bush, 
  1897. 
  

   Tindariopsis 
  Veiirill 
  aud 
  Brsii, 
  Amer. 
  .Tonrn. 
  Sci., 
  III. 
  pp. 
  59, 
  63, 
  January, 
  1897. 
  

   Type. 
  — 
  Tindariopsis 
  agathida 
  (Dall).' 
  

  

  ' 
  Malletia 
  (Tindaria) 
  agathida 
  Dall, 
  Proc. 
  U. 
  S. 
  Nat. 
  Mus., 
  XII, 
  p. 
  252, 
  pi. 
  xiii, 
  fig. 
  

  

  10, 
  1889. 
  

  

  