﻿118 
  

  

  NOTES 
  ON 
  (I) 
  PLEISTOCENE, 
  (II) 
  HOLOCENE, 
  (III) 
  RECENT 
  NON- 
  

   MARINE 
  SHELLS 
  FROM 
  MALLORCA 
  ; 
  (IV) 
  MARINE 
  SHELLS 
  

   ASSOCIATED 
  WITH 
  THE 
  HOLOCENE 
  DEPOSITS; 
  (V) 
  MARINE 
  

   SHELLS 
  FROM 
  ALCUDIA, 
  MALLORCA; 
  (VI) 
  NON-MARINE 
  

   SHELLS 
  FROM 
  MANRESA, 
  CATALUNA. 
  

  

  By 
  llev. 
  R. 
  Ashington 
  Bullen, 
  B.A., 
  F.L.S., 
  E.G.S. 
  

  

  ^ead 
  nth 
  March, 
  1910. 
  

  

  The 
  list 
  of 
  shells 
  from 
  Mallorca 
  need 
  a 
  few 
  words 
  of 
  explanation, 
  

  

  otherwise 
  they 
  are 
  principally 
  useful 
  as 
  localizing 
  certain 
  species, 
  

  

  a 
  sort 
  of 
  pioneer 
  work 
  which 
  may 
  some 
  day 
  prove 
  advantageous. 
  

  

  I. 
  Pleistocene. 
  

  

  The 
  Pleistocene 
  forms 
  are 
  interesting 
  principally 
  as 
  having 
  been 
  

   found 
  by 
  Miss 
  Dorothea 
  M. 
  A. 
  Bate 
  in 
  the 
  same 
  deposits 
  in 
  which 
  she 
  

   discovered 
  Myotragus 
  Balearicus, 
  Bate, 
  last 
  spring, 
  as 
  described 
  in 
  the 
  

   Geological 
  Magazine, 
  1909, 
  p. 
  385. 
  The 
  Quaternary 
  rocks 
  of 
  Majorca 
  

   and 
  Minorca 
  are 
  discussed 
  by 
  Henri 
  Hermite.^ 
  It 
  is 
  not 
  necessary 
  to 
  

   go 
  into 
  the 
  geological 
  questions 
  involved, 
  otherwise 
  than 
  saying 
  that 
  

   he 
  mentions 
  the 
  occurrence 
  of 
  Helix 
  Companyoni, 
  Aleron, 
  in 
  deposits 
  

   containing 
  many 
  (still 
  existing) 
  marine 
  species 
  near 
  Palma 
  ; 
  also 
  near 
  

   Andraitx 
  S. 
  Company 
  oni 
  and 
  Tudorella 
  ferrxiginea^ 
  Lam., 
  and 
  near 
  

   Coll 
  d'en 
  Eebasa 
  the 
  two 
  latter 
  with 
  Bulimus 
  sp. 
  and 
  Helix 
  Caroli, 
  

   Dohrn 
  (var.). 
  However, 
  it 
  behoves 
  one 
  to 
  say 
  that 
  as 
  these 
  Quaternary 
  

   rocks 
  are 
  not 
  differentiated 
  sufficiently 
  from 
  one 
  another, 
  it 
  is 
  uncertain 
  

   whether 
  these 
  deposits, 
  containing 
  the 
  above-mentioned 
  land 
  shells, 
  

   are 
  to 
  be 
  regarded 
  as 
  Pleistocene 
  or 
  Holocene 
  ; 
  if 
  the 
  level 
  at 
  which 
  

   they 
  occur 
  were 
  known 
  we 
  might 
  be 
  more 
  certain 
  of 
  the 
  epoch 
  to 
  which 
  

   they 
  severally 
  belong. 
  The 
  four 
  species 
  found 
  by 
  Miss 
  Bate 
  are 
  

   definitely 
  Pleistocene, 
  having 
  been 
  found 
  in 
  company 
  with 
  a 
  now 
  

   extinct 
  mammal. 
  

  

  II. 
  Holocene. 
  

  

  Porto 
  Pi. 
  — 
  The 
  shells 
  found 
  here 
  occurred 
  in 
  a 
  hill-wash 
  down 
  

   to 
  a 
  depth 
  of 
  8 
  feet. 
  The 
  section 
  was 
  well-defined, 
  near 
  the 
  end 
  

  

  I 
  T^ 
  r 
  1 
  1 
  T 
  TT-r-l 
  Z 
  

  

  Level 
  of 
  Road. 
  J 
  

  

  of 
  the 
  mule 
  tram-car 
  line 
  from 
  Palma, 
  about 
  3 
  miles 
  out 
  from 
  the 
  

   latter 
  place. 
  The 
  face 
  nearest 
  the 
  road 
  contained 
  (besides 
  the 
  non- 
  

   marine 
  mollusca) 
  specimens 
  of 
  marine 
  mollusca 
  and 
  some 
  fragments 
  of 
  

  

  1 
  " 
  Etudes 
  geologiques 
  sur 
  les 
  iles 
  Baleares 
  " 
  (Premiere 
  Partie), 
  Paris, 
  1879, 
  

   pp. 
  277-99. 
  

  

  