﻿492 
  Mr. 
  J. 
  W. 
  Gregory 
  on 
  Zeuglopleuru3. 
  

  

  and 
  agreed 
  * 
  with 
  Desor 
  in 
  regarding 
  Echinopsis 
  pusillus, 
  

   Rcem., 
  as 
  a 
  synonym 
  of 
  Temnopleurus 
  pulchellus, 
  and 
  conse- 
  

   quently 
  of 
  Glyphocyphus 
  radialus, 
  though, 
  as 
  we 
  shall 
  sub- 
  

   sequently 
  see, 
  on 
  this 
  point 
  both 
  authors 
  were 
  probably 
  in 
  

   error. 
  Dr. 
  S. 
  P. 
  Woodward, 
  however, 
  differed 
  from 
  Desor 
  

   as 
  to 
  the 
  true 
  nature 
  of 
  Glyphocyphus 
  difficilis 
  (Ag.), 
  which 
  

   he 
  returned 
  with 
  its 
  synonyms, 
  Diadema 
  rotatum, 
  Fbs., 
  D. 
  

   M'Coyi, 
  Fbs., 
  and 
  D. 
  rotulare, 
  M'Coy, 
  not 
  Ag., 
  to 
  its 
  original 
  

   position 
  in 
  Cyphosoma, 
  on 
  account 
  of 
  the 
  structure 
  of 
  the 
  

   apical 
  disk, 
  which, 
  according 
  to 
  him, 
  was 
  quite 
  different 
  from 
  

   that 
  of 
  Glyphocyphus, 
  though 
  it 
  is 
  equally 
  unlike 
  that 
  of 
  

   Cyphosoma. 
  He 
  recognized 
  the 
  grooved 
  sutures, 
  but 
  regarded 
  

   this 
  feature 
  as 
  of 
  but 
  specific 
  value. 
  

  

  In 
  1859 
  MM. 
  Cotteau 
  and 
  Triger 
  gavef 
  admirable 
  

   descriptions 
  and 
  figures 
  of 
  G. 
  radiatus, 
  and 
  to 
  the 
  list 
  of 
  

   synonyms 
  they 
  added, 
  though 
  with 
  a 
  query, 
  Glypticus 
  

   Konincki, 
  Fbs. 
  non 
  Des. 
  This 
  query 
  was 
  omitted 
  by 
  M. 
  

   Cotteau 
  in 
  a 
  subsequent 
  list 
  ; 
  that 
  he 
  was 
  justified 
  in 
  so 
  doing 
  

   must 
  be 
  admitted, 
  as 
  there 
  can 
  be 
  no 
  doubt 
  that 
  the 
  figure 
  

   given 
  by 
  Forbes 
  as 
  Glypticus 
  Konincki 
  \ 
  is 
  only 
  that 
  of 
  

   the 
  abactinal 
  view 
  of 
  the 
  specimen 
  of 
  which 
  the 
  actinal 
  view 
  

   is 
  given 
  in 
  the 
  adjoining 
  figure 
  described 
  as 
  Echinopsis 
  

   pusillus. 
  Forbes's 
  specimen, 
  now 
  in 
  the 
  British 
  Museum, 
  

   probably 
  belongs 
  to 
  neither 
  species, 
  as 
  we 
  shall 
  see 
  subse- 
  

   quently. 
  In 
  18G0 
  MM. 
  Cotteau 
  and 
  Triger, 
  in 
  a 
  later 
  sheet 
  

   of 
  their 
  work 
  §, 
  separated 
  those 
  of 
  Desor's 
  species 
  of 
  Gly- 
  

   phocyphus 
  of 
  which 
  the 
  tubercles 
  were 
  really 
  imperforate 
  as 
  

   their 
  new 
  genus 
  Echinocyphus, 
  having 
  E. 
  tenuistriatus 
  (Des., 
  

   non. 
  Ag.) 
  as 
  the 
  type. 
  

  

  The 
  discovery 
  of 
  many 
  specimens 
  of 
  the 
  type 
  species 
  of 
  

   Glyphocyphus 
  in 
  the 
  Cenomanien 
  of 
  Algeria 
  next 
  occasioned 
  

   contributions 
  to 
  the 
  literature 
  of 
  the 
  species, 
  and 
  in 
  1862 
  

   Coquand 
  || 
  recorded 
  it 
  as 
  Temnopleurus 
  pulchellus, 
  though 
  

   its 
  correct 
  name 
  was 
  given 
  by 
  Peron 
  in 
  1866, 
  when 
  he 
  

   described 
  ^[ 
  two 
  varieties, 
  a 
  large 
  subpentagonal 
  one 
  from 
  

  

  * 
  " 
  A 
  Note 
  on 
  Echinopsis," 
  Dec. 
  Geol. 
  Surv. 
  no. 
  v. 
  (London, 
  1856), 
  

   pi. 
  iii. 
  p. 
  6. 
  

  

  f 
  ' 
  Lchinides 
  du 
  departement 
  de 
  la 
  Sartlie,' 
  feuille 
  10 
  (Paris, 
  1859), 
  

   pp. 
  158-162, 
  pi. 
  xxviii. 
  figs. 
  7-12. 
  

  

  % 
  Dixon, 
  ' 
  The 
  Geology 
  and 
  Fossils 
  of 
  the 
  Tertiary 
  and 
  Cretaceous 
  

   Formations 
  of 
  Sussex 
  ' 
  (London, 
  1850), 
  p. 
  340, 
  pi. 
  xxv. 
  figs. 
  80, 
  31. 
  

  

  § 
  Op. 
  cit. 
  feuille 
  15, 
  1860, 
  pp. 
  226, 
  227, 
  pi. 
  xxxix. 
  bis, 
  tigs. 
  3-6. 
  

  

  || 
  ' 
  M6m. 
  de 
  la 
  Soc. 
  d'Fmul. 
  de 
  la 
  Provence 
  ' 
  (Marseilles, 
  1862), 
  

   t. 
  ii. 
  p. 
  294. 
  

  

  % 
  " 
  Notice 
  sur 
  la 
  geologie 
  des 
  environs 
  d'Auniale 
  (Algerie)," 
  Bull. 
  

   Sue. 
  G(5ol. 
  France, 
  stSr. 
  2, 
  t. 
  xxiii. 
  1866, 
  pp. 
  697, 
  698, 
  703. 
  

  

  