﻿MUSSELS 
  IN 
  TRIBUTARIES 
  OF 
  UPPER 
  MISSOURI 
  RIVER. 
  15 
  

  

  The 
  river 
  was 
  exaniincd 
  f 
  roni 
  Flandreau, 
  S. 
  Dak., 
  to 
  Hawarden, 
  Iowa. 
  

   Only 
  a 
  few 
  mussels 
  were 
  found, 
  and 
  of 
  these 
  only 
  the 
  foUowmg 
  7 
  spe- 
  

   cies 
  were 
  of 
  commercial 
  value: 
  Lampsilis 
  recta 
  (black 
  sand-shell), 
  

   L. 
  ventricosa 
  (pocketbook), 
  L. 
  luteola 
  (fat 
  mucket), 
  Quadrula 
  undu- 
  

   lata 
  (three-ridge), 
  Q. 
  coccinea 
  (flat 
  niggerhead), 
  Q. 
  pustulosa 
  (pimple- 
  

   back), 
  and 
  Sympliynota 
  complanata 
  (white 
  heel-splitter). 
  The 
  non- 
  

   commercial 
  species 
  found 
  were: 
  L. 
  gracilis 
  (paper-shell), 
  L. 
  alata 
  

   (pancake 
  or 
  pink 
  heel-splitter), 
  Anodonta 
  corpulenta 
  (slop-bucket), 
  

   Alasmondonta 
  truncata 
  (elk-toe). 
  

  

  Lalie 
  Kampeska, 
  3^ 
  miles 
  wide 
  and 
  5| 
  miles 
  long, 
  lying 
  4 
  miles 
  

   northwest 
  of 
  Watertown, 
  S. 
  Dak., 
  is 
  practically 
  an 
  isolated 
  lake, 
  which 
  

   receives 
  its 
  main 
  supply 
  from 
  the 
  Big 
  Sioux 
  River 
  at 
  flood 
  stages 
  

   through 
  what 
  is 
  usually 
  termed 
  the 
  ''outlet" 
  at 
  the 
  eastern 
  end 
  of 
  

   the 
  lake. 
  The 
  gently 
  sloping 
  banks 
  are 
  cliiefly 
  fine 
  gravel 
  and 
  sand, 
  

   and 
  the 
  average 
  depth 
  is 
  about 
  10 
  feet. 
  The 
  mussels 
  were 
  very 
  small 
  

   and 
  dwarfed, 
  and 
  were 
  too 
  thin 
  for 
  commercial 
  use. 
  The 
  following 
  

   species 
  were 
  observed: 
  Anodonta 
  grandis 
  footiana 
  (floater), 
  with 
  

   shells 
  so 
  thin 
  that 
  ordinary 
  print 
  can 
  easily 
  be 
  read 
  through 
  them; 
  

   La7npsilis 
  ventricosa 
  (jDocketbook) 
  ; 
  L. 
  luteola 
  (fat 
  mucket) 
  (1 
  speci- 
  

   men 
  gravid 
  July 
  23, 
  1913); 
  Stropliitus 
  edentulus 
  (squaw-foot); 
  Sym^ 
  

   phynota 
  complanata 
  variety 
  Icatharinse 
  (white 
  heel-splitter). 
  

  

  Bad 
  River 
  was 
  examined 
  at 
  PhiUp, 
  S. 
  Dak., 
  and 
  was 
  found 
  to 
  be 
  

   almost 
  dry, 
  with 
  the 
  exception 
  of 
  a 
  few 
  water 
  holes, 
  and 
  no 
  mussels 
  

   were 
  found. 
  

  

  Cheyenne 
  River 
  at 
  Wasta, 
  S. 
  Dak., 
  is 
  very 
  swift 
  and 
  muddy. 
  The 
  

   bottom 
  is 
  covered 
  with 
  largo 
  rocks, 
  along 
  with 
  the 
  mud 
  and 
  sand. 
  

   No 
  mussels 
  were 
  found. 
  

  

  Red 
  River 
  of 
  the 
  North, 
  where 
  examined 
  at 
  Fargo, 
  N. 
  Dak., 
  is 
  about 
  

   50 
  to 
  75 
  feet 
  wide, 
  the 
  bottom 
  bemg 
  cliiefly 
  very 
  soft 
  with 
  a 
  con- 
  

   siderable 
  proportion 
  of 
  decaying 
  vegetation. 
  Above 
  the 
  dam 
  at 
  this 
  

   place 
  the 
  river 
  is 
  6 
  to 
  10 
  feet 
  deep. 
  Mussels 
  were 
  quite 
  plentiful 
  in 
  

   the 
  mill 
  pond. 
  Q. 
  undulata 
  (three-ridge), 
  Q. 
  lachrymosa 
  (maple- 
  

   leaf), 
  and 
  Q. 
  pustulosa 
  (pimple-back) 
  were 
  the 
  only 
  commercial 
  shells 
  

   found. 
  Other 
  species 
  collected 
  were: 
  L. 
  ventricosa 
  (pocketbook); 
  

   L. 
  recta 
  (black 
  sand-shell); 
  and 
  L. 
  alata 
  (pancake). 
  

  

  Sheyenne 
  River, 
  a 
  tributary 
  of 
  the 
  Red 
  River 
  of 
  the 
  North, 
  was 
  

   examined 
  at 
  Lisbon, 
  N. 
  Dak. 
  At 
  this 
  place 
  it 
  is 
  a 
  small 
  stream 
  30 
  to 
  

   50 
  feet 
  wide 
  and 
  about 
  1 
  or 
  2 
  feet 
  deep. 
  In 
  the 
  mill 
  pond 
  above 
  the 
  

   town 
  we 
  found 
  quite 
  a 
  few 
  mussels, 
  but 
  they 
  wore 
  too 
  thin 
  for 
  com- 
  

   mercial 
  use. 
  The 
  following 
  species 
  were 
  noted: 
  Q. 
  undulata 
  (three- 
  

   ridge); 
  Q. 
  coccinea 
  (flat 
  niggerhead); 
  L. 
  luteola 
  (fat 
  mucket); 
  and 
  

   A. 
  grandis 
  (floater). 
  

  

  SUMMARY. 
  

  

  In 
  contrast 
  to 
  the 
  tributaries 
  of 
  the 
  upper 
  Mississippi, 
  those 
  of 
  the 
  

   upper 
  Missouri, 
  like 
  the 
  main 
  stream 
  itself, 
  are 
  generally 
  deficient 
  in 
  

  

  9497°— 
  15— 
  19 
  

  

  