﻿388 
  MB. 
  H. 
  WOODS 
  ON 
  THE 
  MOLLUSCA 
  [Aug. 
  1897, 
  

  

  & 
  pt. 
  ii. 
  p. 
  32, 
  pi. 
  viii. 
  f. 
  18-21 
  ; 
  1877. 
  A. 
  Fritsch, 
  ' 
  Stud, 
  im 
  Gebiete 
  der 
  bohm. 
  

   Kreideformat. 
  II. 
  Die 
  Weissenbevger 
  u. 
  Malnitzer 
  Scbicbten,' 
  p. 
  138; 
  1889. 
  

   Fritsch, 
  ibid. 
  IV. 
  'Die 
  Teplitzer 
  Scbichten,' 
  p. 
  86, 
  f. 
  82; 
  1889. 
  E. 
  Holzapfel; 
  'Die 
  

   Mollusken 
  der 
  Aacbener 
  Kreide.' 
  Palaeontographica, 
  vol. 
  xxxv. 
  p. 
  244, 
  pi. 
  xxvii. 
  

   f. 
  11, 
  14; 
  1892. 
  E.Stolley, 
  'Die 
  Kreide 
  Scbleswig-Holsteins,' 
  Mitth. 
  a. 
  d. 
  mineralog. 
  

   Institut 
  der 
  Univ. 
  Kiel, 
  vol. 
  i. 
  p. 
  236. 
  

  

  1842. 
  Spondylus 
  obliquus, 
  H. 
  B. 
  Geinitz, 
  ' 
  Char. 
  d. 
  Schichten 
  u. 
  Petref 
  . 
  des 
  sachs.- 
  

   bohm. 
  Kreidegeb.' 
  pt. 
  iii. 
  p. 
  82 
  ; 
  1846. 
  A. 
  E. 
  Reuss, 
  ' 
  Die 
  Verstein. 
  der 
  bohm. 
  

   Kreideformat.' 
  p. 
  36, 
  pi. 
  xl. 
  f. 
  4; 
  1850. 
  H. 
  B. 
  Geinitz, 
  'Das 
  Quadersandsteingeb. 
  in 
  

   Deutscbl.' 
  p. 
  194 
  (partim). 
  

  

  1870. 
  Spondylus 
  striatus, 
  F. 
  Romer, 
  ' 
  Geol. 
  von 
  Oberschlesien,' 
  p. 
  315, 
  pi. 
  xxxvii. 
  

   f 
  . 
  3 
  & 
  4. 
  

  

  Remarks. 
  — 
  This 
  species 
  is 
  much 
  less 
  common 
  in 
  the 
  Chalk 
  Rock 
  

   than 
  is 
  Sp. 
  spinosus. 
  Sowerby's 
  type 
  came 
  from 
  the 
  Chalk 
  of 
  

   Lewes, 
  and 
  is 
  now 
  in 
  the 
  British 
  Museum, 
  as 
  is 
  also 
  the 
  specimen 
  

   figured 
  by 
  Dixon. 
  Mantell's 
  Dianchora 
  obliqua 
  (from 
  near 
  Lewes 
  

   and 
  Brighton) 
  is 
  probably 
  identical 
  with 
  this 
  species, 
  but 
  I 
  have 
  not 
  

   been 
  able 
  to 
  find 
  the 
  type. 
  

  

  Affinities. 
  — 
  Sp. 
  latus 
  is 
  related 
  to 
  Sp. 
  striatus, 
  Sowerby, 
  the 
  type 
  

   of 
  which 
  comes 
  from 
  the 
  Warminster 
  Greensand 
  (Rye 
  Hill 
  Sand 
  *) 
  ; 
  

   but 
  its 
  length 
  is 
  proportionately 
  greater, 
  it 
  is 
  more 
  oval, 
  and 
  the 
  

   ribs 
  are 
  finer 
  and 
  more 
  numerous. 
  

  

  Distribution. 
  — 
  England 
  : 
  Lower 
  and 
  Middle 
  Chalk 
  (zones 
  of 
  

   Terebratulina 
  gracilis. 
  Holaster 
  planus, 
  & 
  Heteroceras 
  Reussianmn), 
  

   and 
  Upper 
  Chalk. 
  Chalk 
  Rock 
  of 
  Brixton, 
  Winchester, 
  Cuckhamsley, 
  

   Thickthorn 
  Hill 
  (Bledlow), 
  Boxmoor. 
  France 
  : 
  zone 
  of 
  Terebra- 
  

   tulina 
  gracilis, 
  at 
  Youlpaix, 
  in 
  the 
  Yonne 
  and 
  Aube, 
  etc. 
  ; 
  zone 
  of 
  

   Micraster 
  cor-anguinum 
  at 
  Lezennes. 
  North-western 
  Germany 
  : 
  in 
  

   the 
  zone 
  of 
  Heteroceras 
  Reussianum. 
  Aachen 
  : 
  Macronata-beds 
  of 
  

   Schneeberg. 
  Saxony 
  : 
  Unter- 
  Planer 
  (Upper 
  Cenomanian) 
  of 
  

   Gross-Sedlitz 
  near 
  Pirna 
  ; 
  Planer-Kalk 
  of 
  Strehlen 
  and 
  Weinbohla. 
  

   Silesia 
  : 
  Scaphites-be&s 
  of 
  Oppeln. 
  Schleswig-Holstein 
  : 
  Quadrata- 
  

   beds 
  (Senonian) 
  of 
  Lagerdorf. 
  Bohemia 
  : 
  Teplitz 
  Beds. 
  

  

  Genus 
  Plicatula, 
  Lamarck, 
  1801. 
  

   Plicatula 
  Barroisi, 
  Peron, 
  1887. 
  (PI. 
  XXVII. 
  figs. 
  18 
  & 
  19.) 
  

  

  1846. 
  Plicatula 
  pectinoides, 
  A. 
  E. 
  Reuss 
  (non 
  Sowerby), 
  ' 
  Die 
  Verstein. 
  der 
  bohm. 
  

   Kreideformat.' 
  pt. 
  ii. 
  p. 
  37, 
  pi. 
  xxxi. 
  f. 
  16 
  & 
  17. 
  

  

  1872. 
  Plicatula 
  nodosa, 
  H. 
  B. 
  Geinitz 
  (non 
  Dujardin), 
  'Das 
  Elbthalgeb. 
  in 
  Sach- 
  

   sen,' 
  PalEeontographica, 
  vol. 
  xx. 
  pt. 
  ii. 
  p. 
  32, 
  pl.ix.f. 
  5; 
  1878. 
  C. 
  Barrois, 
  'Terr. 
  Cret. 
  

   des 
  Ardennes,' 
  Ann. 
  Soc. 
  geol. 
  Nord, 
  vol. 
  v. 
  p. 
  391 
  ; 
  1889. 
  A. 
  Fritsch. 
  ' 
  Stud, 
  im 
  

   Gebiete 
  der 
  bobm. 
  Kreideformat. 
  IV. 
  Die 
  Teplitzer 
  Schichten,' 
  p. 
  86, 
  f. 
  83; 
  1895. 
  

   Plicatula 
  cf. 
  nodosa. 
  B. 
  Lundgren, 
  ' 
  Molluskfaunan 
  i 
  Mammill.- 
  och 
  Mucron.- 
  

   zonemai 
  nordostra 
  Skane,' 
  K. 
  Svenska 
  Vet.-Akad. 
  Handl. 
  n. 
  s. 
  vol. 
  xxvi. 
  no. 
  6, 
  p. 
  41. 
  

  

  1887. 
  Plicatula 
  Barroisi, 
  A. 
  Peron, 
  ' 
  Notes 
  pour 
  servir 
  a 
  l'Hist. 
  du 
  Terr, 
  de 
  Craie,' 
  

   Bull. 
  Soc. 
  Sci. 
  hist. 
  nat. 
  de 
  l'Yonne. 
  ser. 
  3, 
  vol. 
  xii. 
  p. 
  167, 
  pi. 
  ii. 
  f. 
  5-7. 
  

  

  Remarks. 
  — 
  D'Orbigny 
  2 
  considered 
  that 
  this 
  species 
  (which 
  was 
  

   figured 
  by 
  Reuss 
  as 
  P. 
  pectinoides) 
  was 
  identical 
  with 
  P. 
  nodosa, 
  

   Dujardin, 
  3 
  and 
  this 
  view 
  has 
  been 
  adopted 
  by 
  Geinitz 
  and 
  Fritsch. 
  

   Barrois 
  pointed 
  out 
  that 
  the 
  species 
  under 
  consideration 
  differs 
  

   considerably 
  from 
  P. 
  nodosa, 
  and 
  Peron 
  has 
  since 
  described 
  it 
  under 
  

  

  1 
  See 
  Jukes-Browne. 
  Geol. 
  Mag. 
  1896, 
  p. 
  261. 
  

  

  2 
  ' 
  Prodr. 
  de 
  Pal.' 
  vol. 
  ii. 
  (1850) 
  p. 
  254. 
  

  

  3 
  Mem. 
  Soc. 
  geol. 
  France, 
  vol. 
  ii. 
  (1837) 
  p. 
  228 
  & 
  pi. 
  xv. 
  f. 
  14. 
  

  

  