MAMMALS OF BATAM ISLAND, RHIO ARCHIPELAGO. Bj Marcus Ward Lyon, Jr. , Assistant Curator, Division of Mammals, U. S. National Museum. This paper i.s supplementaiy to one recently published by Mr. Gerrit S. Miller, jr.," on the mammals of the Rhio-Linga Archipelago. The island of Batam was twice visited by Mr. C. Boden Kloss at the instigation of Dr. W. L. Abbott, once in September, 1905, and again in March and April, 1906. The results of Mr. Kloss's first visit are embodied in Mr. Miller's paper, while the results of the second trip are here given. Batam, or Battam, about 15 miles long by 12 miles wide, is the second largest island of the Rhio Archipelago and lies about 10 miles south-sOutheast of Singapore Island. The channel between it and Singapore, however, contains several small islands, so that the greatest stretch of water between the two is less than 5 miles. The deepest water between it and Singapore is about 50 fathoms. The following list contains two species not previously known from Batam, records eight other mammals not before noted on the island, while a new subspecies of one species previously known is here described. TRAGULUS PERFLAVUS Miller. 1906. Tragulus perfarus Miller, Proc. U. S. Nat. Mus., XXXI, 1906, p. 251. One specimen, the type, taken in September, 1905, and live taken in March and April, 1906. The additional specimens taken by Mr. Kloss since the type was first known confirm in every way the characters of the species. Two of them are even more yellow on the upper parts than is the type. Three other examples collected on Pulo Galang by Mr. Kloss are in every wa}^ identical with this species. SCIURUS VITTATUS Raffles. 1906. Sciurus peninsularis Miller, Proc. U. S. Nat. Mus., XXXI, 1906, p. 263. Thirteen skins and skulls collected at Senimba Bay, two in Septem-ber, 1905, eleven in March, 1906. This series of skins does not differ a Proc. U. S. Nat. Mus., XXXI, pp. 247-286, September 11, 1906. Proceedings U. S. National Museum, Vol. XXXI— No. 1502. 653
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