R.D. Kirkpatrick 1964 Rattus rattus Oct. Johnston Island, Johnston Atoll, Pacific 28 A male rat was caught in a live- trap baited with rolled oats and set on a pier Navy Pier under packing crates. This is the same area where Lt. (j.g.) Richard Fleming, U.S.N.R., collected a rat on 3 September 1964. The Sept. rat was a ♀, T.L. 231 mm, T 131 mm, Ear 16 mm. Today's rat was made into skin and skull RDK #3958. Ectoparasites were collected Nov. John Makilan, a Hawaiian who 5 is working for Holmes and Narver, Inc. as an exterminator, gave me two rats which he had caught in snap traps. I made them into RDK #397 and 398. #398 was apparently partly rotting since the skin tore and was very difficult to make up. The skull of the latter specimen was not saved since it was very badly crushed by the traps. No external parasites were found on either skin. Dec. John Makilan gave me two rats he had 24 caught in snap traps. One was melanic (RDK #502).