﻿62 
  Bibliographical 
  Notice. 
  

  

  systematic 
  position 
  of 
  Meiolania 
  brought 
  forward 
  here 
  is 
  true 
  

   or 
  not, 
  and 
  I 
  hope 
  that 
  the 
  decision 
  may 
  be 
  given 
  soon. 
  

  

  Nov. 
  11, 
  1888. 
  

  

  Note. 
  — 
  Since 
  the 
  above 
  was 
  written 
  I 
  have 
  examined 
  the 
  

   caudal 
  vertebrae 
  of 
  two 
  specimens 
  of 
  Chmmys 
  insculpta, 
  Ler., 
  

   one 
  of 
  the 
  Emydida?, 
  with 
  a 
  pretty 
  well-developed 
  tail. 
  

  

  In 
  one 
  I 
  found 
  opisthocoelian 
  vertebra?, 
  in 
  the 
  other 
  true 
  

   opisthocoelian 
  vertebra?, 
  were 
  not 
  present, 
  but 
  the 
  tendency 
  

   was 
  there 
  to 
  form 
  such 
  vertebrae 
  

  

  First 
  specimen. 
  — 
  Caud. 
  1-7 
  concave-convex; 
  caud. 
  8 
  bi- 
  

   concave; 
  caud. 
  9 
  and 
  the 
  next 
  following 
  convex-concave. 
  

  

  Second 
  specimen. 
  — 
  Caud. 
  1-7 
  concave-convex 
  ; 
  caud. 
  8 
  

   concave-plane 
  ; 
  caud. 
  9 
  biconcave 
  ; 
  caud. 
  10 
  biconcave 
  ; 
  

   caud. 
  11 
  plane-concave; 
  caud. 
  12 
  biplane 
  ; 
  caud. 
  13-15 
  con- 
  

   cave-plane 
  ; 
  caud. 
  16 
  biconcave, 
  also 
  the 
  following. 
  

  

  Between 
  the 
  vertebra? 
  well-developed 
  cartilaginous 
  inter- 
  

   centra 
  are 
  found, 
  like 
  those 
  in 
  Sphenodon, 
  only 
  between 
  the 
  

   8th 
  and 
  about 
  the 
  15th 
  caudal 
  they 
  are 
  ossified 
  and 
  represent 
  

   chevrons. 
  

  

  The 
  question 
  of 
  course 
  is 
  whether 
  the 
  PlatysternMa?, 
  cha- 
  

   racterized 
  by 
  the 
  opisthocoelian 
  caudal 
  vertebra?, 
  can 
  no.v 
  be 
  

   considered 
  as 
  a 
  distinct 
  family. 
  Platy 
  sternum 
  comes 
  nearest 
  

   to 
  the 
  ancestors 
  of 
  Emydida?, 
  which 
  still 
  had 
  the 
  inframar- 
  

   ginals 
  well 
  developed. 
  I 
  think 
  it 
  best 
  to 
  consider 
  it 
  as 
  be- 
  

   longing 
  to 
  a 
  subfamily 
  — 
  the 
  Platysternina?. 
  

  

  BIBLIOGRAPHICAL 
  NOTICE. 
  

  

  Die 
  Calaniden 
  Finland's. 
  Von 
  Osc. 
  Nordqttist. 
  8vo. 
  Finnische 
  

   Litteratur-Gesellschaft, 
  1888. 
  

  

  Attention 
  was 
  particularly 
  called 
  to 
  the 
  occurrence 
  of 
  marine 
  form8 
  

   of 
  life 
  in 
  fresh 
  waters 
  by 
  Dr. 
  E. 
  von 
  Martens 
  some 
  thirty 
  years 
  ago, 
  

   and 
  since 
  then 
  the 
  investigations 
  of 
  naturalists 
  have 
  demonstrated 
  

   the 
  presence 
  of 
  such 
  types 
  in 
  nearly 
  all 
  parts 
  of 
  the 
  world. 
  Among 
  

   the 
  earliest 
  researches 
  were 
  those 
  upon 
  the 
  Swedish 
  lakes, 
  which 
  

   revealed 
  phenomena 
  of 
  great 
  interest, 
  especially 
  in 
  connexion 
  with 
  

   the 
  geographical 
  features 
  of 
  the 
  region, 
  and 
  in 
  Finland 
  Malmgren 
  

   and 
  others 
  noticed 
  the 
  presence 
  in 
  the 
  fresh 
  waters 
  of 
  species 
  of 
  

   Mi/sis, 
  Pallasea, 
  Gammaracanthus, 
  and 
  Pontoporeia. 
  Little, 
  how- 
  

   ever, 
  was 
  done 
  with 
  respect 
  to 
  the 
  Entomostraca 
  of 
  Finland. 
  

  

  