﻿EXPLANATION 
  OF 
  PLATES 
  327 
  

  

  Plate 
  2.—PBCTEX 
  AND 
  XCCULAXA 
  

   Figure 
  Page 
  

  

  1-3. 
  "Pecten 
  (? 
  var.) 
  sqnarrosus" 
  Carpenter 
  72 
  

  

  Syntypes, 
  Redpath 
  Mus., 
  No. 
  120. 
  Fig. 
  1, 
  length, 
  45 
  mm.; 
  height, 
  46 
  mm.; 
  

   thickness, 
  12 
  mm. 
  Figs. 
  2, 
  3, 
  length, 
  18 
  mm. 
  ; 
  height, 
  21 
  mm. 
  ; 
  thickness, 
  

   4.5 
  mm. 
  

  

  4-6. 
  Nuculana 
  hamata 
  (Carpenter) 
  61 
  

  

  Fig. 
  6, 
  lectotype, 
  U.S.N.Al., 
  No. 
  107420. 
  Figs. 
  4, 
  5, 
  length, 
  9 
  mm.; 
  height, 
  

   5 
  mm.; 
  thickness 
  (each 
  valve), 
  1 
  mm. 
  Fig. 
  6, 
  length, 
  10 
  mm.; 
  height, 
  5 
  mm.; 
  

   thickness, 
  2.5 
  mm. 
  

  

  