﻿XXI 
  -REPORT 
  ON 
  THE 
  DECAPOD 
  CRUSTACEA 
  OF 
  THE 
  ALBA- 
  

   TROSS 
  DREDGINGS 
  OFF 
  THE 
  EAST 
  COAST 
  OF 
  THE 
  UNITED 
  

   STATES 
  DURING 
  THE 
  SUMMER 
  AND 
  AUTUMN 
  OF 
  1884. 
  

  

  By 
  Sidney 
  I. 
  Smith. 
  

  

  In 
  addition 
  to 
  all 
  the 
  true 
  Decapoda 
  which 
  have 
  been 
  submitted 
  to 
  me 
  

   for 
  examination 
  from 
  Albatross 
  dredgings 
  during 
  the 
  summer 
  and 
  au- 
  

   tumn 
  of 
  1884, 
  this 
  report 
  includes 
  a 
  few 
  specimens 
  taken 
  in 
  1883, 
  but 
  

   omitted 
  from 
  the 
  report 
  for 
  that 
  year. 
  

  

  In 
  the 
  tables 
  of 
  specimens 
  examined 
  the 
  following 
  abbreviations 
  are 
  

   used 
  to 
  indicate 
  the 
  nature 
  of 
  the 
  bottom 
  : 
  

  

  In 
  the 
  column 
  of 
  temperatures 
  the 
  degrees 
  are 
  given 
  in 
  whole 
  num- 
  

   bers; 
  fractions 
  of 
  half 
  a 
  degree 
  or 
  less 
  are 
  omitted, 
  and 
  when 
  the 
  frac- 
  

   tion 
  is 
  more 
  than 
  half 
  a 
  degree 
  the 
  next 
  higher 
  whole 
  number 
  is 
  used. 
  

   In 
  the 
  column 
  for 
  the 
  number 
  of 
  specimens 
  examined, 
  I 
  is 
  used 
  to 
  indi- 
  

   cate 
  large 
  specimens; 
  s, 
  small 
  specimens; 
  y, 
  young; 
  and/, 
  fragments 
  or 
  

   very 
  imperfect 
  specimens. 
  In 
  a 
  few 
  cases 
  specimens 
  which 
  I 
  have 
  not 
  

   seen 
  are 
  recorded, 
  but 
  the 
  numbers 
  of 
  all 
  such 
  specimens 
  are 
  inclosed 
  

   in 
  brackets. 
  When 
  the 
  sexes 
  were 
  not 
  counted 
  separately 
  the 
  whole 
  

   number 
  of 
  specimens 
  examined 
  is 
  placed 
  in 
  the 
  middle 
  of 
  the 
  column; 
  

   when 
  the 
  sexes 
  were 
  counted 
  separately 
  the 
  number 
  of 
  males 
  is 
  put 
  on 
  

   the 
  right, 
  the 
  number 
  of 
  females 
  on 
  the 
  left, 
  and 
  the 
  number 
  of 
  young, 
  

   whose 
  sex 
  was 
  indeterminable, 
  in 
  the 
  middle, 
  followed 
  by 
  the 
  letter 
  y. 
  

   When 
  the 
  number 
  of 
  egg-bearing 
  females 
  was 
  counted 
  it 
  is 
  entered 
  in 
  

   the 
  appropriate 
  column; 
  when 
  specimens 
  carrying 
  eggs 
  were 
  found, 
  

   but 
  not 
  counted, 
  a 
  plus 
  sign 
  (+) 
  is 
  used 
  ; 
  and 
  when 
  none 
  of 
  the 
  speci- 
  

  

  [1] 
  605 
  

  

  