Plate 81 



Figure 1. Pisasler ochraceus forma confertus, Boundary Bay, British Columbia, an extreme exam- 

 ple, XI. 



2. Pisasler ochraceus forma confertus-nodiferus, Departure Bay, British Columbia, XI. 



3. Pisasler ochraceus forma ochraceus, Sitka, Alaska, No. 5984, XI. This is regarded as 



typical of forma ochraceus. 



336 



