THE GUNONG BENOM EXPEDITION 1967 4. NEW RECORDS OF MALAYAN BATS, WITxH TAXONOMIC NOTES AND THE DESCRIPTION OF A NEW PIPISTRELLUS By J. E. HILL The 1967 Expedition to Gunong Benom, Pahang, 1965 resulted in the accession of a number of specimens of bats of especial taxonomic interest, including one example that has proved to represent an undescribed species of Pipistrellus. Addi-tionally, during recent years, specimens of similar interest or in some cases represent-ing species new to Malaya have been received from Lord Medway, formerly of the Unit of Zoology, School of Biological Sciences, at the University of Malaya, Kuala Lumpur. All measurements in this paper are in milhmetres : where these refer to a series of specimens the minimum and maximum values are given, followed by the mean in parentheses. Rhinolophus malayanus Bonhote, 1903 ? B.M. 68.812 (in alcohol, skull extracted). Wang Tangga, Kaki Bukit, Perils, 6° 39' N, 100° 12' E. 2 January 1968. i B.M. 68.816, $9 B.M. 68.813-815 (all in alcohol, skulls extracted). Kisap Forest Reserve, Pulau Langkawi, Kedah, 6° 23' N, 99° 52' E. 31 December 1967. Rhinolophus malayanus is not listed from the States of Malaya by Chasen (1940 : 36) and does not appear to have been subsequently recorded. Described originally from Biserat, Patani, southern Thailand, its presence in Perils and on Pulau Lang-kawi is not unexpected. The species is recorded from Koh Lak, on the east coast of southern Thailand rather to the north of Patani by Gyldenstolpe (1916 : 13), from the Laos Mountains by Andersen (1905a : 89) and from Laos by Tate and Archbold (1939 : 6) and by Phillips (1967 : 634), while Osgood (1932 : 218) records it provisionally from Muong Moun, Tonkin (North Vietnam) . These specimens from Perils and Langkawi agree closely with the type specimen, having the lancet with slightly concave lateral margins and an elongate tip and with the lateral margins of the sella almost parallel. The connecting process is rounded and rises slightly above the tip of the sella: its point of insertion on the
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