﻿250 
  PROCEEDINGS 
  OF 
  THE 
  CALIFORNIA 
  

  

  36. 
  Modiolaria 
  Icevigata, 
  Gray 
  ; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  Aleutians, 
  

   D.; 
  south 
  to 
  Oregon. 
  

  

  37. 
  Modiolaria 
  marmorata, 
  * 
  Forbes 
  ; 
  Arctic 
  Ocean. 
  

  

  38. 
  Modiolaria 
  nigra, 
  * 
  Gray 
  ; 
  Arctic 
  Ocean, 
  St. 
  

  

  39. 
  Modiolaria 
  corrugata, 
  Seniavine 
  Strait, 
  St, 
  

  

  40. 
  Yoldia 
  myalis, 
  Couth.; 
  Seniavine 
  Strait, 
  St. 
  

  

  41. 
  Yoldia 
  limatula, 
  J. 
  Sby.; 
  Arctic 
  Ocean, 
  St, 
  

  

  42. 
  Yoldia 
  truncata 
  (Cpr.) 
  ; 
  Norton 
  Sound, 
  D. 
  

  

  43. 
  Yoldia 
  siltqua 
  (Cpr.), 
  Norton 
  Sound, 
  D. 
  

  

  44. 
  Yoldia 
  intermedia 
  (Cpr.), 
  Norton 
  Sound, 
  D. 
  

  

  45. 
  Leda 
  arctica, 
  Brod.; 
  Seniavine 
  Strait, 
  St. 
  (L. 
  lanceolata, 
  J 
  Sby.). 
  

  

  46. 
  Leda 
  minuta 
  (Gld.) 
  ; 
  Bering 
  Strait; 
  Seniavine 
  Strait, 
  St. 
  

  

  47. 
  Nucula 
  tenuis, 
  Mont. 
  ; 
  Seniavine 
  Strait, 
  St. 
  ; 
  Plover 
  Bay 
  ; 
  Norton 
  

   Sound 
  ; 
  Aleutians 
  ; 
  ? 
  south 
  to 
  Sitka, 
  D. 
  

  

  48. 
  Nucula 
  expansa, 
  Jive.; 
  Plover 
  Bay; 
  Aleutians; 
  Sitka, 
  D, 
  

  

  49. 
  Peden 
  islandicus, 
  * 
  Chemn,; 
  Arctic 
  Ocean, 
  St, 
  

  

  Class 
  Gasteropoda, 
  

  

  50. 
  Cylichna 
  triticea, 
  Couth. 
  ; 
  Seniavine 
  Strait, 
  St, 
  

  

  51. 
  Chiton 
  vestitus, 
  Sby.; 
  Seniavine 
  Strait, 
  St. 
  

  

  52. 
  Chiton 
  albus, 
  Lin.; 
  Seniavine 
  Strait, 
  St.; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  

   Aleutians 
  ; 
  Sitka 
  ; 
  Catalina 
  Id., 
  D. 
  

  

  53. 
  Chiton 
  lineatus, 
  Wood 
  ; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  PribilofiF 
  Islds. 
  ; 
  

   Aleutians 
  ; 
  Kadiak 
  ; 
  Sitka 
  ; 
  Monterey, 
  D. 
  

  

  54. 
  Collisella 
  testudinalis, 
  Miiil. 
  ; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  in 
  deep 
  

   water 
  south 
  to 
  Sitka, 
  D. 
  

  

  55. 
  Cryptobranchia 
  concentrica, 
  Dall 
  ex 
  Midd. 
  ; 
  Bering 
  Sea, 
  D. 
  

  

  56. 
  Crypiohranchia 
  albn, 
  Dall 
  ; 
  Plover 
  Bay, 
  D.; 
  Seniavine 
  Strait, 
  St. 
  

  

  57. 
  Margarita 
  unibilicalis,* 
  Bvodi. 
  " 
  Northern 
  Ocean." 
  (ubi?) 
  

  

  58. 
  Margarita 
  striata. 
  Leach 
  ; 
  Seniavine 
  Strait, 
  St. 
  

  

  59. 
  Margarita 
  argentata, 
  Gld.; 
  Seniavine 
  Strait, 
  St. 
  

  

  60. 
  Margarita 
  ianthina,* 
  Gld.; 
  Arctic 
  Ocean, 
  St, 
  

  

  61. 
  Margarita 
  albula, 
  * 
  Gld.; 
  Arctic 
  Ocean, 
  St. 
  

  

  62. 
  Margarita 
  helicina, 
  Mont.; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  Aleutians 
  ; 
  

   Sitka, 
  D. 
  

  

  63. 
  Margarita 
  obscura, 
  Couth. 
  ; 
  Cape 
  Espenberg, 
  S. 
  ; 
  Aleutians 
  ; 
  Norton 
  

   Sound 
  ; 
  Sitka, 
  D, 
  

  

  64. 
  Crepidula 
  grandis, 
  Midd. 
  ; 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  Aleutians, 
  

   D. 
  (not 
  princeps 
  of 
  Conr. 
  fossil). 
  

  

  65. 
  Mesalia 
  polaris. 
  Beck 
  ; 
  Cape 
  Espenberg, 
  S. 
  ; 
  Plover 
  Bay, 
  D, 
  

  

  66. 
  Mesalia 
  lactea, 
  Moll.; 
  Plover 
  Bay, 
  D. 
  

  

  67. 
  Mesalia 
  reticulata,* 
  M\gh.; 
  Seniavine 
  Strait, 
  St. 
  

  

  68. 
  Litorina 
  tenebrosa, 
  var. 
  ? 
  Plover 
  Bay 
  ; 
  Norton 
  Sound 
  ; 
  Aleutians, 
  

   D. 
  

  

  69. 
  Litorina 
  squalida, 
  * 
  Gray 
  ; 
  Icy 
  Cape, 
  B. 
  

  

  