ILLUSTRATIONS xi 



FIGURE PAGE 



29, 30. Mesenchytrceus pedatus 55, 56 



31. Mesenchytrceus beringensis 58 



32. Mesenchytrceus solifugus 60 



33. Enchytrceus modestus 63 



3436. Enchytrceus metlakatlensis 65, 66 



37, 38. Enchytrceus kincaidi 67, 68 



39, 40. Enchytrceus alaskce 69, 70 



41. Enchytrceus saxicola 70 



42. Enchytrceus citrinus 7 2 



43. Michaelsena paucispina 74 



44-46. Lumbricillus santceclarce 77, 78 



47, 48. Lumbricillus merriami 80 



49. Lumbricillus merriami elongatus 8 1 



50-52. Lumbricillus annulatus 82, 83, 84 



53, 54. Lumbricillus ritteri. 85 



55-57. Lumbricillus f rand scanus 86, 87 



58. Lumbricillus franciscanus borealis 89 



59. Lumbricillus franciscanus unalaskce 90 



60. Marionina alaskce 92 



61, 62. Marionina americana 93 



63. Bryodrilus udci 95 



64. Henlea californica 100 



65. Henlea californica monticola 101 



66. Henlea californica helence 101 



67, 68. Henlea guatcmalce 102, 103 



69. Henlea ehrhorni 104 



70, 71. Fridericia harrimani no 



7 2 . Fridericia Johns oni 112 



73, 74. Fridericia fuchsi 113 



75 . Fridericia sonorce 114 



76. Fridericia santcerosce 116 



77. Fridericia santcebarbarce 117 



78,79. Fridericia popojiana 117* 118 



80. Fridericia macgregori. 119 



81. Fridericia californica 120 



