﻿CONTENTS 
  OF 
  No. 
  190.-New 
  Series. 
  

  

  MEMOIRS 
  : 
  

  

  fAGE 
  

  

  The 
  Structure 
  and 
  Classiticatioa 
  of 
  the 
  Arachnida. 
  By 
  E. 
  Ray 
  

   Lankester, 
  M.A., 
  LL.D,, 
  F.E..S., 
  Director 
  of 
  the 
  Natural 
  History 
  

   Departments 
  of 
  the 
  British 
  Museum 
  ...... 
  165 
  

  

  On 
  some 
  New 
  Species 
  of 
  the 
  Genus 
  Phreodrilus. 
  By 
  W. 
  Blaxland 
  

   Benham, 
  D.Sc.(Loud.), 
  M.A.(Oxon.), 
  F.Z.S., 
  Professor 
  of 
  Biology 
  

   in 
  the 
  University 
  of 
  Otago, 
  New 
  Zealand. 
  (With 
  Plates 
  13—15) 
  . 
  271 
  

  

  On 
  a 
  New 
  Species 
  of 
  the 
  Genus 
  Haplotaxis 
  ; 
  with 
  some 
  Remarks 
  on 
  

   the 
  Genital 
  Ducts 
  in 
  the 
  Oligochseta. 
  By 
  W. 
  Blaxland 
  Benham, 
  

   D.Sc.(Lond.), 
  M.A.(Oxon.), 
  if.Z.S., 
  Professor 
  of 
  Biology 
  in 
  the 
  

   University 
  of 
  Otago, 
  New 
  Zealand. 
  (With 
  Platesl6— 
  18) 
  . 
  . 
  299 
  

  

  The 
  (Estrous 
  Cycle 
  in 
  the 
  Common 
  Ferret. 
  By 
  Pkancis 
  H. 
  A. 
  

   Marshall, 
  D.Sc. 
  (With 
  Plates 
  '19— 
  21) 
  323 
  

  

  Two 
  New 
  Forms 
  of 
  Choniostomatidse 
  : 
  Copepoda 
  Parasitic 
  on 
  Crus- 
  

   tacea 
  Malacostraca 
  and 
  Ostrocoda. 
  By 
  H. 
  J. 
  Hansen, 
  D.Sc, 
  

   F.M.L.S., 
  Copenhagen. 
  (With 
  Plate 
  22) 
  347 
  

  

  