﻿326 
  MARINE 
  MOLLUSCA 
  DESCRIBED 
  BY 
  P. 
  P. 
  CARPENTER 
  

  

  Plate 
  l.—HUXLEVIA, 
  BARB 
  ATI 
  A, 
  NUCULA, 
  GLYCYMERIS, 
  AND 
  PHILOBRYA 
  

  

  Figure 
  Page 
  

  

  1-3. 
  Hii.vlcyia 
  munita 
  (Dall) 
  64 
  

  

  Syntype, 
  U.S.N.M., 
  No. 
  23243. 
  Length, 
  2 
  mm.; 
  width, 
  1.5 
  mm. 
  

   4, 
  5. 
  Barbatia 
  pernoidcs 
  (Carpenter) 
  62 
  

  

  Redpath 
  Mus. 
  Length, 
  17 
  mm. 
  ; 
  height, 
  12 
  mm. 
  ; 
  thickness, 
  5 
  mm. 
  

   6, 
  7. 
  Nucula 
  exiqua 
  Sowerby 
  61 
  

  

  '"Syntype," 
  MS. 
  A'', 
  suprastriata 
  Cpr., 
  U.S.N.M., 
  No. 
  23247. 
  Length, 
  5 
  mm.; 
  

   height, 
  4 
  mm.; 
  thickness, 
  1+ 
  mm. 
  

   8-10. 
  Glycymeris 
  subobsoleta 
  (Carpenter) 
  63 
  

  

  Syntypes, 
  U.S.N. 
  M., 
  No. 
  15594. 
  Fig. 
  8, 
  lengtli, 
  34 
  mm.; 
  height, 
  31 
  mm.; 
  thick- 
  

   ness, 
  10 
  mm. 
  Figs. 
  9, 
  10, 
  length, 
  30 
  mm. 
  ; 
  height, 
  29 
  mm. 
  ; 
  thickness, 
  9 
  mm. 
  

   11-16. 
  Philobrya 
  setosa 
  (Carpenter) 
  65 
  

  

  Syntype, 
  U.S.N.M., 
  No. 
  16187; 
  X 
  8. 
  

  

  