A container for collecting and transporting liquid medical specimens such as urine includes a container (12) having a top opening and a cap (14) for closing the top opening. A septum (18) of elastomeric material in the cap (14) is puncturable by relatively blunt tipped sampling implements such as disposable plastic laboratory pipettes (P) and is substantially self-resealing against significant liquid flow following such puncture, so that an analytical sample may be drawn with blunt implements without opening the container (12).