The mammals collected by Dr. W. L. Abbott in the Rhio-Linga Archipelago

The Rhio-Linga Archipelago is a series of small islands extending southeastward along the east coast of Sumatra from the southern extremity of the Malay Peninsula.The northernmost of the islands, Karimon, Batam, and Bintang are separated from the mainland by the narrow Malacca Strait on the west and Singapore Strait on the east, the average width of which is only about ten miles.Singapore Strait contains a mass of small islands on the north side, west of Singapore, which narrows the open water at that point to five miles.The easternmost, Karimon, Kundur, and Durei, are equally near the coast of Sumatra.From Karimon, the northeasternmost of the group, to the south shore of Sinkep, the southernmost, is a distance of about 150 miles, while that from Karimon east to Panjang is about 125 miles.Near the middle the Archipelago is partly divided by the Rhio Strait into two main groups, the Rhio@ Archipelago proper at the north and the Linga Archipelago at the south.The principal islands of the Rhio Archipelago, the main axis of which extends east and west, are: Aar/mon,?