﻿38 
  P. 
  H. 
  CARPENTEK 
  ON 
  SOME 
  NEW 
  OK 
  

  

  much 
  larger 
  in 
  M. 
  Prattii 
  (PL 
  I. 
  fig. 
  16), 
  and 
  its 
  edge 
  exhibits 
  

   the 
  same 
  radial 
  striation 
  as 
  is 
  to 
  he 
  found 
  on 
  the 
  faces 
  of 
  the 
  stem- 
  

   joints 
  themselves 
  (PL 
  I. 
  fig. 
  22). 
  

  

  6. 
  Localities 
  and 
  Horizon. 
  

  

  Nearly 
  all 
  the 
  specimens 
  of 
  this 
  fossil 
  which 
  are 
  preserved 
  in 
  col- 
  

   lections 
  are 
  from 
  the 
  Great 
  Oolite 
  of 
  Lansdown. 
  I 
  learn 
  from 
  

   Dr. 
  Wright 
  that 
  it 
  is 
  a 
  characteristic 
  fossil 
  in 
  this 
  formation, 
  and 
  

   that 
  it 
  has 
  also 
  been 
  found 
  at 
  Windrush 
  Quarries, 
  the 
  neighbourhood 
  

   of 
  Miserden 
  Park, 
  and 
  Notgrove*, 
  all 
  of 
  which 
  localities 
  are 
  in 
  the 
  

   Gloucestershire 
  district. 
  

  

  The 
  national 
  collection 
  at 
  South 
  Kensington 
  contains 
  a 
  few 
  

   individuals 
  from 
  the 
  Stonesfield 
  Slate 
  of 
  Northleach 
  in 
  the 
  same 
  

   district 
  ; 
  they 
  are 
  most 
  probably 
  the 
  earliest 
  known 
  species 
  of 
  the 
  

   genus. 
  It 
  perhaps 
  extends 
  upwards 
  into 
  the 
  Forest 
  Marble, 
  

   though, 
  with 
  the 
  possible 
  exception 
  of 
  the 
  original 
  of 
  fig. 
  9, 
  I 
  

   have 
  been 
  unable 
  to 
  obtain 
  any 
  very 
  satisfactory 
  evidence 
  of 
  its 
  

   occurrence 
  in 
  that 
  bed. 
  The 
  specimen 
  represented 
  in 
  fig. 
  9 
  is 
  the 
  

   property 
  of 
  J. 
  F. 
  Walker, 
  Esq., 
  M.A., 
  F.G.S., 
  who 
  has 
  kindly 
  lent 
  

   it 
  to 
  me 
  for 
  description. 
  He 
  obtained 
  it 
  from 
  a 
  workman, 
  and 
  there 
  

   is 
  therefore 
  some 
  doubt 
  as 
  to 
  its 
  exact 
  horizon. 
  Arm-fragments 
  of 
  

   the 
  Lansdown 
  Encrinite 
  are 
  said 
  to 
  occur 
  in 
  the 
  Forest 
  Marble 
  ; 
  but 
  

   I 
  have 
  not 
  been 
  able 
  to 
  verify 
  this 
  statement, 
  and 
  am 
  therefore 
  

   uncertain 
  whether 
  they 
  may 
  not 
  belong 
  to 
  the 
  common 
  Pentacrinus 
  

   of 
  that 
  bed. 
  

  

  I 
  learn 
  from 
  Mons. 
  P. 
  de 
  Loriol 
  that 
  this 
  type 
  is 
  also 
  found 
  in 
  the 
  

   Jurassic 
  beds 
  of 
  Calvados 
  in 
  Normandy 
  ; 
  but 
  I 
  have 
  no 
  information 
  

   as 
  to 
  its 
  occurrence 
  in 
  other 
  parts 
  of 
  the 
  Continent. 
  

  

  II. 
  TWO 
  NEW 
  CoMATTTLJE. 
  

  

  The 
  examination 
  of 
  the 
  palaeontological 
  collection 
  in 
  the 
  British 
  

   Museum, 
  consequent 
  upon 
  its 
  removal 
  from 
  Bloomsbury 
  to 
  South 
  

   Kensington 
  and 
  its 
  rearrangement 
  in 
  its 
  new 
  home, 
  has 
  led 
  to 
  the 
  

   discovery 
  of 
  many 
  forgotten 
  rarities, 
  including 
  two 
  fine 
  Comatulaz 
  

   from 
  the 
  Great 
  Oolite 
  and 
  the 
  Kelloway 
  Rock 
  respectively. 
  I 
  am 
  

   indebted 
  to 
  the 
  kindness 
  of 
  my 
  friend 
  Mr. 
  R. 
  Etheridge, 
  jun., 
  for 
  the 
  

   opportunity 
  of 
  describing 
  them. 
  

  

  1. 
  Antedon 
  latikadia, 
  n. 
  sp. 
  Fig. 
  1. 
  

  

  The 
  centrodorsal 
  is 
  nearly 
  hemispherical, 
  its 
  dorsal 
  pole 
  being 
  

   slightly 
  hollowed 
  and 
  marked 
  with 
  a 
  faint 
  stellate 
  impression. 
  It 
  

   bears 
  about 
  40 
  cirrhus-sockets, 
  which 
  are 
  rather 
  irregularly 
  arranged. 
  

   The 
  first 
  radials 
  are 
  partly 
  visible 
  round 
  the 
  edge 
  of 
  the 
  centro- 
  

   dorsal, 
  which 
  conceals 
  two 
  of 
  them 
  almost 
  entirely 
  ; 
  at 
  the 
  inter- 
  

   radial 
  angles 
  of 
  the 
  calyx 
  they 
  are 
  separated 
  from 
  it 
  by 
  the 
  small 
  

   basals 
  ; 
  their 
  distal 
  edges 
  are 
  deeply 
  incurved 
  in 
  the 
  centre, 
  but 
  

   turn 
  outwards 
  again 
  at 
  the 
  sides. 
  The 
  proximal 
  edges 
  of 
  the 
  second 
  

  

  * 
  This 
  name 
  is 
  given 
  as 
  Nutgrove 
  in 
  Morris's 
  Catalogue. 
  

  

  