﻿

  PLATE 
  XXII. 
  

  

  Fernando 
  (Pliocene) 
  Fossils. 
  

  

  (Unless 
  otherwise 
  indicated 
  all 
  figures 
  are 
  natural 
  size.) 
  

  

  Fig. 
  la. 
  Pholadidca 
  ovoidea 
  Gould. 
  U.S.N.M. 
  165277. 
  Longitude 
  58 
  mm. 
  View 
  of 
  

  

  valve. 
  Waldorf 
  asphalt 
  mine 
  (4473). 
  Also 
  known 
  recent 
  . 
  

   Fig. 
  16. 
  View 
  of 
  hinge 
  region 
  of 
  both 
  valves. 
  

   Fig. 
  2. 
  Purpura 
  crispata 
  Chemintz. 
  U.S.N.M. 
  1G5278. 
  Altitude 
  20 
  mm. 
  Aperture 
  

  

  view. 
  One 
  mile 
  north 
  of 
  Schumann 
  (4474). 
  Also 
  known 
  recent. 
  

   Fig. 
  3a. 
  Leda 
  taphria 
  Dall. 
  U.S.N.M. 
  165296. 
  Longitude 
  10.5 
  mm. 
  View 
  of 
  exte- 
  

   rior, 
  X 
  3. 
  Fugler 
  Point 
  asphalt 
  mine, 
  near 
  Gary 
  (4475). 
  Also 
  known 
  

  

  recent. 
  

   Fig. 
  36. 
  View 
  of 
  hinge 
  region 
  of 
  both 
  valves. 
  

   Fig. 
  4a. 
  Terebratalia 
  occidentalis 
  Dall. 
  U.S.N.M. 
  165300. 
  Ventral 
  valve; 
  latitude 
  

  

  30 
  mm. 
  View 
  of 
  exterior. 
  Fugler 
  Point 
  asphalt 
  mine, 
  near 
  Gary 
  

  

  (4475). 
  A 
  variable 
  species. 
  Also 
  known 
  recent. 
  

   Fig. 
  46. 
  View 
  of 
  dorsal 
  valve 
  of 
  same 
  specimen. 
  

   Fig. 
  5. 
  Macoma 
  nasuta 
  Conrad. 
  U.S.N.M. 
  165276. 
  Longitude 
  47 
  mm. 
  View 
  of 
  

  

  right 
  valve. 
  Waldorf 
  asphalt 
  mine 
  (4473). 
  Also 
  known 
  recent 
  and 
  in 
  

  

  Miocene. 
  

   Fig. 
  6. 
  Phacoidcs 
  nuttalli 
  Conrad 
  var. 
  antecedens 
  Arnold. 
  U.S.N.M. 
  165290. 
  Type. 
  

  

  Left 
  valve: 
  longitude 
  23 
  mm. 
  View 
  of 
  exterior, 
  X 
  2. 
  Alcatraz 
  asphalt 
  

  

  mine, 
  near 
  Sisquoc 
  (4471). 
  Characteristic 
  of 
  this 
  horizon. 
  

   Fig. 
  7. 
  Cryptomya 
  oralis 
  Conrad. 
  U.S.N.M. 
  165289. 
  Left 
  valve: 
  longitude 
  23 
  mm. 
  

  

  Alcatraz 
  asphalt 
  mine, 
  near 
  Sisquoc 
  (4471). 
  Characteristic 
  of 
  this 
  

  

  horizon. 
  

   Fig. 
  8. 
  Dosinia 
  ponderosa 
  Gray. 
  U.S.N.M. 
  165295. 
  Right 
  valve; 
  altitude 
  105 
  mm. 
  

  

  View 
  of 
  exterior, 
  X 
  \- 
  Alcatraz 
  asphalt 
  mine, 
  near 
  Sisquoc 
  (4471). 
  

  

  Also 
  known 
  recent. 
  

   Fig. 
  9. 
  Leda 
  orcuUi 
  Arnold. 
  U.S.N.M. 
  165271. 
  Type. 
  Longitude 
  7 
  mm. 
  View 
  of 
  

  

  exterior, 
  X 
  3. 
  Waldorf 
  asphalt 
  mine 
  (4473). 
  Characteristic 
  of 
  this 
  

  

  horizon. 
  

   Fig. 
  10. 
  Tapes 
  tenerrima 
  Carpenter. 
  U.S.N.M. 
  165293. 
  Left 
  valve: 
  longitude 
  83 
  

  

  mm. 
  View 
  of 
  exterior. 
  Alcatraz 
  asphalt 
  mine, 
  near 
  Sisquoc 
  (4471). 
  

  

  Common 
  in 
  the 
  Pliocene 
  Also 
  known 
  recent. 
  

  

  146 
  

  

  