EXPLANATION OF PLATE IV 



All figures one and two-thirds natural size 







Fig. 45. Turris washingtonianus Weaver p. 30 



Fig. 46. Epitonium washingtonensis n. sp. Front view p. 43 



Fig. 47. Epitonium washingtonensis n. sp. Rear view p. 43 



Fig. 48. Drilia hecoxi (Arnold). Front view p. 30 



Fig. 49. Exilia lincolnensis n. sp. Front view p. 51 



Fig. 50. Exilia lincolnensis n. sp. Front view p. 51 



Fig. 51. Cancellaria wynoochensis n. sp. Rear view p. 50 



Fig. 52. Cancellaria wynoochensis n. sp. Front view p. 50 



Fig. 53. Cancetllaria wynoochensis n. sp. Front view p. 50 



Fig. 54. Cancellaria wynoochensis n. sp. Rear view p. 50 



Fig. 55. Acteocina chehalisensis n. sp. Front view p. 55 



Fig. 56. Acteocina chehalisensis n. sp. Rear view p- 55 



Fig. 57. Chrysodomus packardi n. sp. Front view p. 47 



Fig. 58. Chrysodomus packardi n. sp. Rear view p. 47 



Fig. 59. Turris clallamensis n. sp. Front view P- 52 



Fig. 60. Molopophorous lincolnensis n. sp. Rear view p. 50 



Fig. 61. Molopophorous lincolnensis n. sp. Front view P- 50 



Fig. 62. Strepsidura lincolnensis n. sp. Rear view P- 49 



Fig. 63. Strepsidura licolnensis n. sp. Front view P- 49 



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