﻿690 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM. 
  vol.xx. 
  i 
  

  

  United 
  States, 
  and 
  Mr. 
  P. 
  E. 
  Uliler 
  tells 
  me 
  that 
  Canibarns 
  dubius 
  

   Faxon, 
  has 
  the 
  same 
  habit 
  in 
  western 
  Virginia.' 
  Titian 
  K, 
  Peale 
  

   informed 
  Girard' 
  that 
  he 
  had 
  observed 
  mud 
  chimneys, 
  altogether 
  sim- 
  

   ilar 
  to 
  those 
  of 
  C. 
  diof/cnes, 
  along 
  the 
  Kio 
  Magdalena 
  in 
  New 
  Grenada, 
  

   several 
  hundred 
  miles 
  from 
  the 
  seashore. 
  But 
  the 
  builders 
  of 
  these 
  

   chimneys 
  in 
  ]Sew 
  Grenada 
  still 
  remain 
  unknown 
  to 
  science. 
  In 
  this 
  

   connection 
  it 
  is 
  worthy 
  of 
  note 
  that 
  the 
  earliest 
  mention 
  of 
  adobe 
  

   towers, 
  erected 
  at 
  the 
  mouth 
  of 
  Crustacean 
  burrows, 
  occurs 
  in 
  Molina's 
  

   work 
  on 
  the 
  natural 
  history 
  of 
  Chile,'' 
  page 
  208: 
  " 
  I 
  gamberi 
  Huviali 
  

   pill 
  rimarchevoli 
  souo 
  i 
  Muratori, 
  Cancer 
  camentarius,'^ 
  i 
  quali 
  hanno 
  

   circa 
  otto 
  pollici 
  di 
  lunghezza; 
  il 
  lor 
  colore 
  e 
  bruno 
  rigato 
  di 
  vene 
  di 
  

   uu 
  rosso 
  vivo, 
  e 
  la 
  carne 
  biaiica 
  e 
  piii 
  saporosa 
  di 
  quella 
  de' 
  gamberi 
  

   marini 
  e 
  degli 
  altri 
  fluviali. 
  Questi 
  si 
  trovonoin 
  grau 
  quantita 
  in 
  tutti 
  

   quel 
  tiumi 
  e 
  rivi, 
  nei 
  margini 
  dei 
  quali 
  essi 
  si 
  fabbricano 
  con 
  dell' 
  ar- 
  

   gilla 
  un' 
  abituro 
  cilindrico 
  alto 
  un 
  mezzo 
  piede 
  sopra 
  il 
  terreno, 
  ma 
  

   profondo 
  di 
  maniera 
  che 
  1' 
  acqua 
  corrente 
  vi 
  passa 
  per 
  mezzo 
  di 
  uu 
  

   canaletto 
  sotterraneo."'' 
  

  

  Poppig 
  considered 
  the 
  Cancer 
  ccementarius 
  of 
  Molina 
  to 
  be 
  a 
  common 
  

   edible 
  prawn 
  of 
  Chile, 
  Palcemon 
  {Bithynis) 
  cwmentarius 
  Poppig." 
  This 
  

   prawn 
  is 
  said 
  to 
  dig 
  deep 
  holes 
  in 
  the 
  clayey 
  banks 
  of 
  the 
  Chilean 
  rivers 
  

   near 
  the 
  sea, 
  closing 
  up 
  the 
  mouths 
  of 
  the 
  holes 
  with 
  mud. 
  Molina's 
  

   description 
  of 
  the 
  mud 
  tenements 
  of 
  Cancer 
  ccementarius 
  vividly 
  recalls 
  

   the 
  "chimneys" 
  constructed 
  by 
  fossorial 
  crayfishes. 
  The 
  character 
  

   '■'■rostra 
  obtuso.^^ 
  moreover, 
  applies 
  better 
  to 
  Parastacus 
  nicoletU 
  or 
  P. 
  

   hassleri 
  than 
  to 
  Palamion 
  cwmentarius 
  Poppig, 
  although 
  the 
  rostrum 
  

   of 
  the 
  latter 
  is 
  obliquely 
  truncated 
  at 
  the 
  tip. 
  On 
  the 
  other 
  hand, 
  

   the 
  aculeate 
  claws 
  and 
  the 
  length 
  of 
  C. 
  cwmentarius 
  point 
  rather 
  to 
  the 
  

   Palcemon. 
  

  

  PARASTACUS 
  AGASSIZII, 
  new 
  species. 
  

   (Plate 
  LXX, 
  tigs. 
  4, 
  5.) 
  

  

  Body 
  robust, 
  subcylindrical, 
  first 
  abdominal 
  somite 
  of 
  normal 
  size. 
  

   Eostrum 
  long, 
  triangular, 
  slightly 
  surpassing 
  the 
  antennular 
  peduncle, 
  

   and 
  attaining 
  the 
  distal 
  end 
  of 
  the 
  antennal 
  peduncle; 
  upper 
  face 
  flat, 
  

  

  1 
  Since 
  the 
  above 
  was 
  written, 
  crayfish 
  " 
  chimneys" 
  observed 
  by 
  Mr. 
  W. 
  P. 
  Hay 
  in 
  

   Indiana 
  and 
  by 
  Doctor 
  R. 
  W. 
  Shufeldt 
  in 
  Montgomery 
  County, 
  Maryland, 
  have 
  

   been 
  ascribed 
  to 
  Cambariis 
  argilUcola 
  and 
  C. 
  hartonii 
  rohusfus, 
  respectively. 
  

  

  '^Proc. 
  Acad. 
  Nat. 
  Sci. 
  Phila., 
  VI, 
  p. 
  90, 
  1852. 
  

  

  ^Saggio 
  sulla 
  Storia 
  Naturale 
  del 
  Chili. 
  Del 
  8ignor 
  Abate 
  Giovanni 
  Ignazio 
  

   Molina. 
  Bologna, 
  1782. 
  

  

  ^Cancer 
  raaerourus, 
  thorace 
  Levi 
  cylindrico, 
  rostro 
  obtnso, 
  chelis 
  aculeatis. 
  

  

  "Translation: 
  The 
  most 
  remarkable 
  of 
  the 
  river 
  prawns 
  are 
  the 
  "Masons," 
  Cancer 
  

   ccvmcnfariiis. 
  They 
  are 
  about 
  eight 
  inches 
  in 
  length, 
  of 
  a 
  brown 
  color, 
  veined 
  with 
  

   bright 
  red; 
  the 
  flesh 
  is 
  whit«^ 
  and 
  more 
  delicious 
  than 
  that 
  of 
  any 
  other 
  kind 
  of 
  

   prawn, 
  either 
  fluviatile 
  or 
  marine. 
  They 
  are 
  found 
  in 
  great 
  abundance 
  in 
  all 
  the 
  

   rivers 
  and 
  brooks, 
  on 
  whose 
  banks 
  they 
  build 
  of 
  clay 
  a 
  cylindrical 
  dwelling 
  rising 
  

   half 
  a 
  foot 
  above 
  the 
  ground, 
  but 
  so 
  deep 
  withal 
  that 
  the 
  current 
  passes 
  into 
  it 
  by 
  

   means 
  of 
  a 
  small 
  subterranean 
  canal. 
  

  

  6 
  Arch. 
  f. 
  Natiirgesch., 
  2ter 
  Jahrg., 
  I, 
  )>. 
  143, 
  1836. 
  

  

  