ILLUSTRATIONS XI 



FIGURE PAGE 



29, 30. Mese7ichytr(Eiis pedatiis 55, 56 



3 1 . Mesenchytrcetis beringcnsis 58 



32. Mesenchytrceus solifugus 60 



33 . Enchytra^us modesttis 63 



34-36. Enc/iytrceus metlakatlensis 65, 66 



37, 38. Enchytrceiis kincaidi 67, 68 



39, 40. Enchytrceus alaskce 69, 70 



41. Enchytrceus saxicola 70 



42. Enchytrceus citrinus 72 



43. Michaelsena faucispina 74 



44-46. Lufnbricilhis santceclarce 77, 78 



47, 48. Ltunbricillus merriami 80 



49 . Linnbricillus merriami elongatus 81 



50-52. Lumbricilhis annulatus 82, 83, 84 



53, 54. Lumbricillus ritteri. 85 



55-57. Lumbricillus fraitciscanus '^G^ 87 



58. Lumbricillus franciscanus borealis 89 



59. Ltimbricilhis franciscanus unalaskcc 90 



60. Marionina alaskcs 92 



61, 62. Marionina americana 93 



63. Bryodrilus udei 95 



64. Henlea calif ornica 100 



65. Henlea californica mo7tticola 



(i6. Henlea californica helence 



67, (i^' HeJilea guatemalce 102, 



69. Henlea ehrhorni 



70, 71- Fridericia harrimani 



7 2 . Fridericia johnsoni 



73, 74- Fridericia fuchsi 



75 . Fridericia sonorce 



76. Fride7-icia sa7ttceros<^ 



7 7 • Fridericia santcebarbarce 



78, 79- Fridericia popof ana 117, 



80. Fridericia 77iacgregori 



8 1 . Fridericia californica 



01 

 01 



03 



04 

 10 



12 

 13 



16 



17 

 18 



19 

 20 



