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  Geological 
  Society. 
  

  

  The 
  evidence 
  of 
  all 
  other 
  crinoids 
  that 
  have 
  these 
  canals 
  shows 
  

   that 
  the 
  basals 
  always 
  contain 
  the 
  interradial 
  branches. 
  And 
  in 
  

   Eugeniacrinus, 
  since 
  the 
  interradial 
  branches 
  have 
  their 
  origin 
  in 
  

   the 
  middle 
  of 
  the 
  radials, 
  the 
  basals 
  must 
  have 
  passed 
  up 
  iu 
  between 
  

   the 
  radials. 
  

  

  2. 
  " 
  On 
  some 
  Polyzoa 
  from 
  the 
  Inferior 
  Oolite 
  of 
  Shipton 
  Gorge, 
  

   Dorset." 
  By 
  E. 
  A. 
  Watford, 
  Esq., 
  F.G.S. 
  

  

  The 
  Author 
  referred 
  to 
  the 
  little 
  attention 
  the 
  Jurassic 
  Polyzoa 
  

   have 
  received 
  in 
  England, 
  a 
  few 
  scattered 
  papers 
  comprising 
  the 
  

   whole 
  of 
  the 
  literature 
  of 
  the 
  subject. 
  This 
  may 
  he 
  accounted 
  for, 
  

   in 
  part, 
  by 
  the 
  rare 
  occurrence 
  of 
  conditions 
  favourable 
  to 
  the 
  pre- 
  

   servation 
  of 
  the 
  delicate 
  features 
  necessary 
  for 
  their 
  true 
  study, 
  and 
  

   in 
  part, 
  also, 
  by 
  the 
  difficulties 
  into 
  which 
  the 
  classification 
  has 
  

   drifted. 
  

  

  The 
  series 
  dealt 
  with 
  has 
  been 
  collected 
  from 
  the 
  Inferior 
  

   Oolite, 
  zone 
  of 
  Ammonites 
  Parhinsoni, 
  at 
  Shipton 
  Gorge, 
  Dorset, 
  

   and 
  the 
  number 
  of 
  forms 
  from 
  the 
  single 
  horizon 
  and 
  locality 
  was 
  

   stated 
  to 
  be 
  equal 
  to 
  the 
  whole 
  of 
  those 
  described 
  by 
  Jules 
  Haime 
  

   from 
  the 
  Lias 
  to 
  the 
  Kimmeridge 
  (-lay. 
  Associated 
  with 
  the 
  Polyzoa 
  

   are 
  Crania 
  Mom-, 
  I 
  and 
  sp.. 
  Thecidea, 
  sp., 
  Rhynehonella 
  senticosa, 
  

   Terebratula 
  Phillipsii, 
  Ammonites 
  Martinsii, 
  some 
  Echinoderms, 
  and 
  

   a 
  large 
  series 
  of 
  sponges. 
  The 
  tranquil 
  conditions 
  prevailing 
  during 
  

   the 
  deposition 
  of 
  the 
  beds 
  are 
  indicated 
  by 
  the 
  presence 
  of 
  many 
  

   slender 
  and 
  arborescent 
  forms 
  of 
  Polyzoa, 
  and 
  the 
  little 
  abrasion 
  

   they 
  have 
  suffered, 
  as 
  well 
  as 
  by 
  the 
  numerous 
  sponges. 
  

  

  The 
  Author, 
  in 
  briefly 
  reviewing 
  the 
  Cyclostomata. 
  adopts 
  the 
  

   simple 
  divisions 
  of 
  Mr. 
  Waters, 
  the 
  Parallelata 
  and 
  Recta 
  ngulata, 
  

   based 
  upon 
  the 
  Hincksian 
  system. 
  The 
  disregard 
  of 
  zoarial 
  growth, 
  

   in 
  any 
  great 
  degree, 
  as 
  a 
  means 
  of 
  classification, 
  would 
  lead 
  to 
  con- 
  

   fusion 
  under 
  the 
  present 
  modes 
  of 
  grouping 
  ; 
  neither, 
  however, 
  can 
  

   any 
  great 
  constancy 
  be 
  found 
  in 
  the 
  form 
  of 
  the 
  zocecia 
  or 
  in 
  the 
  

   shape 
  of 
  the 
  aperture. 
  

  

  In 
  the 
  group 
  Stomatopora 
  six 
  species 
  are 
  recognized, 
  of 
  which 
  

   two 
  are 
  neAV. 
  Amongst 
  the 
  Proboscincv 
  is 
  a 
  species 
  described 
  in 
  

   that 
  stage 
  of 
  growth 
  as 
  Proboscina 
  spatiosa, 
  which 
  passes 
  into 
  both 
  

   Tubuliporoid 
  and 
  Diastoporoid 
  forms, 
  and 
  also 
  in 
  the 
  latter 
  phase 
  

   throws 
  off 
  erect 
  Entalophoroid 
  branches. 
  The 
  Author 
  has 
  used 
  the 
  

   same 
  specific 
  name 
  for 
  each 
  form, 
  though 
  describing 
  them 
  under 
  

   different 
  generic 
  names. 
  Considerable 
  variation 
  in 
  size 
  and 
  shape 
  

   of 
  cell 
  occurs 
  in 
  each 
  stage. 
  The 
  Idmonece 
  are 
  represented 
  by 
  two 
  

   new 
  species 
  and 
  two 
  new 
  varieties; 
  Bisidmonea 
  by 
  one 
  form 
  only. 
  

   Though 
  the 
  latter 
  has 
  much 
  the 
  appearance 
  of 
  Entalophora 
  the 
  

   character 
  of 
  the 
  ovicell 
  is 
  so 
  definitely 
  that 
  of 
  the 
  associated 
  Idmonea 
  

   as 
  to 
  decide 
  its 
  relationship, 
  and 
  it 
  has 
  also 
  the 
  cell-type 
  of 
  Idmonea. 
  

   In 
  the 
  group 
  Entalophora 
  d'Orbigny's 
  Cretaceous 
  species 
  Entalo- 
  

   phora 
  raripora 
  and 
  E. 
  subyracilis 
  are 
  quoted, 
  the 
  latter, 
  howeverj 
  

   under 
  a 
  varietal 
  form. 
  E. 
  anomala, 
  Manz., 
  E. 
  richmondiensis, 
  Vine, 
  

   and 
  one 
  new 
  species, 
  E. 
  m'agnipord, 
  complete 
  the 
  list 
  so 
  far. 
  

  

  