﻿PLATE 
  XXIII. 
  

  

  Fernando 
  (Pliocene) 
  Fossils. 
  

  

  (Unless 
  otherwise 
  indicated 
  all 
  figures 
  are 
  natural 
  size.) 
  

  

  Fig. 
  1. 
  Spisula 
  sisquocensis 
  Arnold. 
  U.S.N.M. 
  165292. 
  Type. 
  Left 
  valve; 
  longi- 
  

   tude 
  120 
  mm. 
  View 
  of 
  exterior, 
  X 
  h- 
  Alcatraz 
  asphalt 
  mine 
  near 
  

  

  Sisquoc 
  (4471). 
  Characteristic 
  of 
  this 
  horizon. 
  

   Fig. 
  2. 
  Clidiojrfiora 
  punctata 
  Carpenter. 
  U.S.N.M. 
  165302. 
  Right 
  valve; 
  longitude 
  

  

  36 
  mm. 
  View 
  of 
  exterior. 
  Graciosa 
  Ridge, 
  near 
  Orcutt 
  (4476). 
  Also 
  

  

  known 
  recent. 
  

   Fig. 
  3. 
  Clidiophora 
  punctata 
  Carpenter. 
  U.S.N.M. 
  165283. 
  Left 
  valve; 
  longitude 
  

  

  35 
  mm. 
  View 
  of 
  interior. 
  Graciosa 
  Ridge, 
  near 
  Orcutt 
  (4476). 
  Also 
  

  

  known 
  recent. 
  

   Fig. 
  4. 
  Venericardia 
  calif 
  ornica'DaW. 
  U.S.N.M. 
  165274. 
  Altitude 
  29 
  mm. 
  Aperture 
  

  

  view. 
  "Waldorf 
  asphalt 
  mine 
  (4473). 
  Characteristic 
  of 
  this 
  horizon. 
  

   Fig. 
  5. 
  Cumingia 
  californica 
  Conrad. 
  U.S.N.M. 
  165311. 
  Left 
  valve; 
  longitude 
  17 
  

  

  mm. 
  View 
  of 
  exterior, 
  X 
  2. 
  Fugler 
  Point 
  asphalt 
  mine, 
  near 
  Gary 
  

  

  (4475). 
  Also 
  known 
  recent. 
  

   Fig. 
  6. 
  Spisula 
  catilliformis 
  Conrad 
  var. 
  alcatrazensis 
  Arnold. 
  U.S.N.M. 
  165291. 
  

  

  Type. 
  Right 
  valve; 
  longitude 
  128 
  mm. 
  View 
  of 
  exterior, 
  X 
  \- 
  Alca- 
  

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

   Fig. 
  7. 
  Bathytoma 
  carpenteriana 
  Gabb 
  var. 
  fcrnandoana 
  Arnold. 
  L'.S.N.M. 
  165303. 
  

  

  Type. 
  Altitude 
  24 
  mm. 
  Aperture 
  view. 
  Graciosa 
  Ridge, 
  near 
  Orcutt 
  

  

  (4476). 
  Characteristic 
  of 
  this 
  horizon. 
  

   Fig. 
  8. 
  Phacoides 
  annulatus 
  Reeve. 
  U.S.N.M. 
  165286. 
  Right 
  valve: 
  longitude 
  45 
  

  

  mm. 
  View 
  of 
  exterior. 
  One 
  mile 
  north 
  of 
  Schumann 
  (4474). 
  Common 
  

  

  in 
  the 
  Fernando 
  and 
  also 
  found 
  recent. 
  

   Fig. 
  9a. 
  Phacoides 
  intensus 
  DaU. 
  U.S.N.M. 
  165260. 
  Left 
  valve: 
  altitude 
  6.5 
  mm. 
  

  

  View 
  of 
  exterior, 
  X 
  4. 
  Waldorf 
  asphalt 
  mine 
  (4473). 
  Found 
  also 
  in 
  

  

  same 
  horizon 
  at 
  San 
  Diego. 
  

   Fig. 
  96. 
  View 
  <>t' 
  interior 
  of 
  same 
  specimen, 
  X 
  4. 
  

   Fig. 
  10. 
  Ostreareatchii 
  G&bb. 
  U.S.N.M. 
  165282. 
  Left 
  valve; 
  altitude 
  96 
  mm. 
  View 
  

  

  of 
  exterior. 
  One 
  mile 
  north 
  of 
  Schumann 
  (4474). 
  Characteristic 
  of 
  this 
  

  

  horizon. 
  

  

  148 
  

  

  