﻿PLATE 
  II. 
  

  

  [To 
  be 
  bound 
  facing 
  p. 
  317.] 
  

   Ancillary 
  appendages 
  of 
  Adkinia 
  zophodadtyltjs, 
  A. 
  pneumonantiies, 
  

  

  A. 
  COPRODACTYLUS, 
  AND 
  STENOPTILIA 
  PTERODACTYLA 
  X 
  28 
  . 
  

  

  Fig. 
  1. 
  — 
  Adkinia 
  zophodactylus 
  : 
  Paler, 
  more 
  delicately 
  chitinised 
  than 
  others 
  

   shown. 
  The 
  interior 
  rod 
  of 
  aedceagus 
  partially 
  exserted 
  (this 
  rarely 
  happens 
  in 
  

   these 
  preparations). 
  The 
  terminal 
  rounded 
  lobe 
  with 
  delicate 
  membranous 
  

   extension. 
  

  

  Fig. 
  2. 
  — 
  Adkinia 
  pneumonantiies 
  : 
  Shows 
  well 
  the 
  relative 
  form 
  of 
  the 
  tegumen 
  

   when 
  compared 
  with 
  fig. 
  1 
  ; 
  the 
  terminal 
  lobe 
  more 
  rounded 
  than 
  in 
  A. 
  zopho- 
  

   dactylus. 
  

  

  Fig. 
  3. 
  — 
  Adkinia 
  coprodactylus 
  : 
  One 
  tip 
  of 
  the 
  tegumen 
  is 
  blemished 
  in 
  plate 
  

   (that 
  to 
  right). 
  The 
  terminal 
  rounded 
  lobes 
  showing 
  delicate 
  membrane 
  extending 
  

   beyond 
  scaled 
  portion 
  as 
  in 
  fig. 
  1. 
  The 
  interior 
  rod 
  very 
  obvious 
  within 
  the 
  

   sedoeagus. 
  

  

  Fig. 
  4.— 
  Stenoptilia 
  pterodactyla 
  : 
  Larger, 
  stronger, 
  sickles 
  or 
  cusps 
  of 
  clasps 
  

   longer, 
  more 
  pointed. 
  The 
  terminal 
  lobes 
  of 
  tegumen 
  very 
  rounded, 
  with 
  scarcely 
  

   any 
  sulcus 
  between 
  them. 
  

  

  [The 
  black 
  areas 
  on 
  the 
  clasps 
  are 
  due 
  to 
  unremoved 
  hairs, 
  and 
  the 
  difference 
  

   between 
  photos 
  in 
  this 
  respect 
  are 
  not 
  due 
  to 
  any 
  differences 
  of 
  structure, 
  but 
  to 
  

   completeness 
  or 
  otherwise 
  of 
  this 
  removal.] 
  

  

  N.B. 
  — 
  The 
  ancillary 
  appendages 
  in 
  all 
  are 
  very 
  similar. 
  The 
  clasps 
  complex, 
  

   delicate, 
  definitely 
  different 
  only 
  in 
  size, 
  and 
  possible 
  slight 
  differences 
  in 
  length 
  and 
  

   sharpness 
  of 
  terminal 
  sickle. 
  The 
  aodoeagus 
  similar 
  throughout 
  ; 
  the 
  slender 
  chitinous 
  

   rod 
  within 
  which 
  is 
  part 
  of 
  eversible 
  membrane. 
  The 
  most 
  obvious 
  differences 
  are 
  

   in 
  the 
  varying 
  completeness 
  of 
  the 
  removal 
  of 
  scales 
  and 
  hairs. 
  The 
  uncus 
  rises 
  

   (see 
  Plate 
  III) 
  from 
  the 
  ventral 
  surface 
  of 
  the 
  terminal 
  rounded 
  lobe. 
  The 
  uncus 
  

   is 
  characteristically 
  different 
  as 
  shown 
  in 
  the 
  four 
  forms. 
  — 
  T. 
  A. 
  Chapman. 
  

  

  