﻿MUSSEL 
  RESOURCES 
  OF 
  THE 
  ILLINOIS 
  RIVER. 
  

  

  11 
  

  

  Table 
  5. 
  — 
  Number 
  op 
  Shells 
  op 
  Different 
  Species 
  in 
  1 
  Ton 
  at 
  Four 
  Repre- 
  

   sentative 
  Stations. 
  

  

  Species. 
  

  

  Washboard 
  (Q. 
  hews) 
  

  

  Three-ridge 
  (Q. 
  plicata) 
  

  

  Blue-point 
  (Q. 
  uniiulata) 
  . 
  . 
  . 
  

   Warty-back 
  (Q. 
  ptistulosa). 
  

  

  Niggefhead 
  (Q. 
  ebena) 
  

  

  Lady-finger 
  (Q. 
  gibbosus)... 
  

   Mixed 
  shells 
  

  

  Chilli- 
  

   eothe. 
  

  

  2,000 
  

   3,000 
  

   6,800 
  

  

  Mere- 
  

   dosia. 
  

  

  2,400 
  

   4,800 
  

   7,000 
  

   14, 
  200 
  

  

  10,800 
  

   12,400 
  

  

  Florence. 
  

  

  3,400 
  

  

  7,800 
  

   17,200 
  

   7,400 
  

  

  Hardin. 
  

  

  4,800 
  

   6,800 
  

   9,200 
  

  

  21,200 
  

  

  The 
  following 
  table 
  of 
  the 
  commercial 
  appraisal 
  of 
  the 
  most 
  impor- 
  

   tant 
  shells 
  found 
  by 
  the 
  author 
  between 
  Peoria 
  Lake 
  and 
  Beardstow^n 
  

   was 
  prepared 
  by 
  Mr. 
  J. 
  B. 
  Southall, 
  shell 
  expert 
  of 
  the 
  United 
  States 
  

   biological 
  station, 
  at 
  Fairport, 
  Iowa. 
  Samples 
  of 
  the 
  different 
  species 
  

   were 
  weighed, 
  and 
  from 
  these 
  there 
  were 
  cut 
  blanks 
  of 
  16 
  to 
  30 
  lines 
  

   diameter. 
  The 
  number 
  of 
  gross 
  of 
  blanks 
  per 
  ton 
  of 
  shells 
  was 
  then 
  

   calculated. 
  (L 
  = 
  luie 
  ; 
  40 
  lines 
  = 
  an 
  inch.) 
  

  

  Table 
  6. 
  — 
  Commercial 
  Appraisal 
  of 
  Illinois 
  River 
  Shells. 
  

  

  Species. 
  

  

  Three-ridge 
  (Q. 
  plicata) 
  

  

  Blue 
  point 
  (Q. 
  undulata) 
  

  

  Fat 
  muc-ket 
  {L. 
  luteola) 
  

  

  Washboard 
  (Q. 
  heros) 
  

  

  Pig-toe 
  ( 
  Q. 
  trigona) 
  , 
  

  

  Warty-back 
  (Q. 
  pustulosa) 
  , 
  

  

  Niggerhead 
  (Q. 
  ebena) 
  , 
  

  

  Mucket 
  (L. 
  ligamentina) 
  

  

  Buckhorn,pi.stolgrip 
  (T. 
  tuberculata) 
  . 
  

  

  Pocketbook 
  ( 
  L. 
  ventricosa) 
  , 
  

  

  Maple-leaf 
  , 
  stranger 
  (Q. 
  lachrymosa) 
  . 
  . 
  

  

  Higgins 
  eye 
  (L. 
  higginsii) 
  

  

  Butterfly 
  ( 
  P. 
  securis) 
  

  

  Slough 
  sand 
  shell 
  {L.fallaciosa) 
  

  

  Rock 
  shell, 
  bastard, 
  queen 
  {A 
  . 
  con- 
  

   fragosa). 
  

  

  Black 
  sand 
  shell 
  (L. 
  recta) 
  

  

  White 
  heel 
  splitter 
  (S. 
  complanata)... 
  

  

  Locality. 
  

  

  Peoria 
  above 
  bridge. 
  . 
  

  

  Peoria 
  Lake 
  

  

  Peoria 
  above 
  bridge. 
  . 
  

  

  Peoria 
  to 
  Havana 
  

  

  Peoria 
  above 
  bridge. 
  . 
  

  

  do 
  

  

  do 
  

  

  Havana 
  

  

  Beardsto^^^l 
  

  

  Havana 
  

  

  Peoria 
  to 
  Havana 
  

  

  Meredosia 
  , 
  

  

  Peoria 
  to 
  Havana 
  

  

  Peoria 
  to 
  Beardsto^vn. 
  

   Havana 
  , 
  

  

  Peoria 
  

  

  Peoria 
  Lake. 
  

  

  Discoloration. 
  

  

  A 
  few 
  stained 
  . 
  

  

  do 
  

  

  None 
  

  

  A 
  few 
  spots 
  . 
  . 
  . 
  

  

  None 
  

  

  do 
  

  

  do 
  

  

  Pinkish 
  

  

  None 
  

  

  do 
  

  

  do 
  

  

  do 
  

  

  A 
  few 
  spots. 
  

  

  None 
  

  

  A 
  few 
  spots 
  . 
  

  

  None. 
  

  

  Luster. 
  

  

  Good. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ...do.. 
  

   ..do.. 
  

   Fair... 
  

  

  Good.... 
  

  

  Texture. 
  

  

  2d 
  grade. 
  

   1st 
  grade. 
  

  

  Do. 
  

   2d 
  grade. 
  

   1st 
  grade. 
  

  

  Do. 
  

  

  Do. 
  

  

  Do. 
  

  

  Do. 
  

   2d 
  grade. 
  

   1st 
  grade. 
  

  

  Do. 
  

  

  Do. 
  

  

  Do. 
  

   2d 
  grade. 
  

  

  3d 
  grade. 
  

  

  Species. 
  

  

  Three-ridge 
  ( 
  Q. 
  plicata) 
  . 
  . 
  

   Blue 
  point 
  (Q. 
  undulata). 
  

   Fat 
  mucket 
  {L. 
  luteola).. 
  

  

  Washboard 
  (Q. 
  heros) 
  

  

  Pig-toe 
  (Q. 
  trigona) 
  

  

  Warty-back 
  (Q. 
  pustulosa). 
  

   Niggerhead 
  (Q. 
  ebena) 
  

  

  Mucket 
  (L. 
  ligamentina) 
  

  

  Buckhorn, 
  pistol 
  grip 
  ( 
  T. 
  tuberculata) 
  

  

  Pocketbook 
  {L. 
  ventricosa) 
  

  

  Maple-leaf, 
  stranger 
  (Q. 
  lachrymosa).. 
  

  

  Higgins 
  eye 
  ( 
  L 
  . 
  higginsii) 
  

  

  Butterfly 
  {P. 
  securis) 
  

  

  Slough 
  sand 
  shell 
  {L.fallaciosa) 
  

  

  Rock 
  shell, 
  bastard, 
  queen 
  (A. 
  con- 
  

  

  fragosa). 
  

   Black 
  sand 
  sheU 
  (L. 
  recta) 
  

  

  White 
  heel 
  splitter 
  (S. 
  complanata) 
  . 
  

  

  Gross 
  blanks 
  psr 
  ton 
  

   shells. 
  

  

  16 
  L. 
  20 
  L. 
  24 
  L. 
  30 
  L 
  

  

  200 
  

  

  '845' 
  

  

  634 
  

   700 
  

   535 
  

  

  758 
  

   851 
  

  

  1,278 
  

   '"874' 
  

  

  256 
  

   251 
  

  

  Remarks. 
  

  

  Medium 
  to 
  large, 
  exterior 
  not 
  eroded. 
  

  

  Medium 
  size, 
  very 
  good 
  button 
  shell. 
  

  

  Medium 
  to 
  large, 
  smooth 
  exterior, 
  good 
  

   material. 
  

  

  Large, 
  inclined 
  to 
  be 
  a 
  little 
  chalky. 
  

  

  Medium 
  to 
  large 
  and 
  very 
  thick 
  beaks. 
  

  

  Large 
  size, 
  very 
  good 
  button 
  material. 
  

  

  Large, 
  fine 
  luster, 
  very 
  fine 
  button 
  mate- 
  

   rial. 
  

  

  Large, 
  one 
  of 
  the 
  best 
  button 
  shells. 
  

  

  Very 
  good 
  button 
  shell. 
  

  

  Large, 
  inclined 
  to 
  be 
  brittle. 
  

  

  Medium 
  size, 
  thick 
  at 
  beak, 
  thin 
  at 
  tips. 
  

  

  Medium 
  size, 
  thick, 
  good 
  material. 
  

  

  Large, 
  heavy 
  , 
  good 
  material. 
  

  

  Small, 
  good 
  for 
  novelties, 
  large 
  shells 
  good 
  

   button 
  material. 
  

  

  Large, 
  heavy, 
  fair 
  button 
  material. 
  

  

  Some 
  white, 
  some 
  purple; 
  good 
  for 
  nov- 
  

   elties. 
  

  

  About 
  30 
  per 
  cent 
  of 
  shell 
  good 
  for 
  but- 
  

   tons, 
  remainder 
  too 
  thin. 
  

  

  