TY - CHAP T1 - Order Diptera (pp. 341-346) in Ashmead, W.H. Reports upon the insects, spiders, mites and myriapods collected by Dr. L. Stejneger and Mr. G.E.H. Barrett-Hamilton on the Commander Islands T2 - Fur seals and fur-seal islands of the North Pacific Ocean. Part. IV Y1 - 1899 A1 - Coquillett, D. W. L2 - 21851 L3 - 21868 JA - Fur seals and fur-seal islands of the North Pacific Ocean. Part. IV ER -