﻿Miscellaneous. 
  69 
  

  

  amples 
  were 
  taken, 
  in 
  the 
  month 
  of 
  April, 
  upon 
  the 
  abdominal 
  feet 
  

   of 
  Callianassa. 
  

  

  3. 
  Hersilioides 
  Puffini, 
  Thomson 
  (Cyclops 
  Puffini, 
  J. 
  C. 
  Thorns., 
  

   Proc. 
  Biol. 
  Soc. 
  Liverp. 
  vol. 
  ii. 
  1887). 
  — 
  Gornptes 
  Rendus, 
  November 
  

   12, 
  1888, 
  p. 
  792. 
  

  

  Pebrilla, 
  a 
  new 
  Genus 
  of 
  Infusoria 
  living 
  on 
  the 
  Hermit-crab. 
  

   By 
  Prof. 
  A. 
  Giakd. 
  

  

  Prof. 
  Giard, 
  at 
  the 
  close 
  of 
  a 
  notice 
  of 
  the 
  species 
  of 
  FollicuUna 
  

   observed 
  on 
  the 
  French 
  coasts, 
  gives 
  a 
  short 
  description 
  of 
  a 
  new 
  

   form 
  allied 
  to 
  that 
  genus 
  which 
  he 
  proposes 
  to 
  name 
  Pebrilla 
  

   paguri. 
  He 
  has 
  found 
  this 
  Infusorian 
  on 
  the 
  abdomen 
  of 
  hermit- 
  

   crabs 
  (Eapagurus 
  Bernhardt) 
  infested 
  by 
  Peltogastcr 
  paguri 
  and 
  

   Phryxus 
  paguri, 
  but 
  does 
  not 
  doubt 
  that 
  it 
  may 
  also 
  exist 
  upon 
  

   healthy 
  subjects. 
  It 
  forms 
  small 
  colonies 
  placed 
  either 
  in 
  the 
  vicinity 
  

   of 
  the 
  feet 
  or 
  at 
  the 
  posterior 
  extremity 
  of 
  the 
  abdomen 
  of 
  the 
  hermit- 
  

   crab. 
  These 
  colonies 
  are 
  visible 
  by 
  the 
  naked 
  eye 
  as 
  black 
  patches, 
  

   which 
  retain 
  their 
  colour 
  even 
  after 
  being 
  long 
  in 
  spirits. 
  

  

  The 
  capsule 
  of 
  Pebrilla 
  is 
  of 
  an 
  oblong-ovate 
  form, 
  with 
  a 
  pro- 
  

   jecting 
  tubercle 
  at 
  the 
  hinder 
  extremity, 
  within 
  which 
  the 
  actual 
  

   body 
  of 
  the 
  Infusorian 
  is 
  attached 
  ; 
  it 
  is 
  strongly 
  constricted 
  trans- 
  

   versely 
  in 
  the 
  middle, 
  and 
  the 
  aperture 
  is 
  surrounded 
  by 
  a 
  nearly 
  

   erect 
  or 
  slightly 
  everted 
  collar. 
  The 
  lobes 
  which 
  surmount 
  the 
  

   mouth 
  of 
  the 
  Infusorian 
  are 
  shorter 
  than 
  in 
  the 
  Folliculiiw, 
  and 
  

   the 
  nucleus 
  is 
  very 
  large 
  and 
  moniliform. 
  It 
  is 
  not 
  uncommon 
  to 
  

   find 
  individuals 
  in 
  a 
  state 
  of 
  bipartition 
  or 
  of 
  gemmiparous 
  repro- 
  

   duction. 
  

  

  Pebrilla 
  paguri, 
  like 
  the 
  Phryosus 
  and 
  Peltogas 
  ter, 
  evidently 
  avails 
  

   itself 
  of 
  the 
  currents 
  of 
  water 
  which 
  circulate 
  along 
  the 
  abdomen 
  of 
  

   the 
  hermit-crab, 
  and 
  it 
  forms 
  an 
  interesting 
  addition 
  to 
  the 
  long 
  list 
  

   of 
  commensals 
  of 
  that 
  Crustacean. 
  The 
  specimens 
  on 
  which 
  it 
  was 
  

   found 
  were 
  collected 
  at 
  Pouligucn 
  and 
  Roscoff, 
  those 
  from 
  the 
  latter 
  

   locality 
  in 
  1872, 
  and 
  yet 
  the 
  Infusoriaus 
  were 
  so 
  well 
  preserved 
  

   that 
  their 
  vibratile 
  cilia 
  and 
  moniliform 
  nucleus 
  could 
  be 
  clearly 
  

   seen. 
  — 
  Bull. 
  Sci. 
  de 
  la 
  France 
  ct 
  de 
  la 
  Belgique, 
  1888, 
  p. 
  316, 
  

   pi. 
  xx. 
  figs. 
  1, 
  2. 
  

  

  On 
  the 
  Nutrition 
  of 
  the 
  Protozoa. 
  By 
  Dr. 
  M. 
  Meissuee. 
  

  

  Dr. 
  Meissner 
  in 
  the 
  first 
  place 
  refers 
  to 
  previous 
  experiments 
  in 
  

   the 
  feeding 
  of 
  Protozoa, 
  as 
  those 
  made 
  by 
  Count 
  Gleichen-Russ- 
  

   wurm 
  in 
  the 
  last 
  century 
  and 
  continued 
  at 
  a 
  later 
  date 
  by 
  Ehren- 
  

   berg. 
  In 
  both 
  cases 
  the 
  inception 
  of 
  grains 
  of 
  carmine 
  into 
  the 
  

   body-substance 
  of 
  Infusoria 
  was 
  observed. 
  

  

  The 
  food 
  of 
  the 
  Protozoa 
  is 
  well 
  known 
  to 
  consist 
  of 
  low 
  forms 
  of 
  

  

  