Plate 17. 
Page 
Figure. 1. Laqueus californicus Koch.230 
2. Laqueus calif ornicus Koch. 230 
3. Laqueus calif ornicus Koch. 230 
/i -. Laqueus calif ornicus Koch... 230 
3. Laqueus calif ornicus vancouvcrensis Davidson....231 
6. Laqueus var. vancouvcrensis Davidson.231 
7. Laqueus var. Vancouverensis Davidson.231 
8. Laqueus var. vancouvcrensis Davidson.231 
0. Laqueus var. vancouvcrensis Davidson.231 
10. Laqueus var. vancouvcrensis Davidson.231 
Photographs from Davidson Recent Brach. 
