Nyctophilus heran Kitchener, How & Maharadatunkamsi, 1991 Vespertilionidae Don E. Wilson Russell A. Mittermeier 485YP Kitchener, How & Maharadatunkamsi 1991 [731,1051,2867,2917] Mammalia Vespertilionidae Nyctophilus Animalia Chiroptera 49 807 Chordata species heran    92.    Sunda Long-eared Bat    French: Nyctophile de la Sonde/ German: Sunda-Langohrfledermaus/ Spanish: Nictofila de Sonda   Other common names: Sundan Long-eared Bat   Taxonomy. Nyctophilus heran Kitchener, How & Maharadatunkamsi, 1991,   “Kampong Merdeka, Desa Hadakewa, Pulau Lembata, Nusa Tenggara[= Lesser Sunda Islands], Indonesia( 08°22'S, 123°31'E) ... at sea level.”  Placement of Nyctophilus heranin a species group is uncertain. It is most similar to N. geoffroyiand is tentatively included in the geoffroyispecies group. There were apparently recently obtained specimens of Nyctophiluson Timor that apparently resembled N. heran, but a comparison of these samples to other Nyctophilushas not yet been undertaken, and the name timoriensiswill continue to go unused for now. Monotypic.    Distribution.Known only from type locality on Lembata I, Lesser Sunda Is.   Descriptive notes.Head-body 51-5 mm, tail 40-7 mm, ear 23-4 mm, hindfoot 6-4 mm, forearm 39-3 mm; weight 7-6 g (type specimen). The Sunda Long-eared Bat has very large ears and unique simple noseleaf consisting of two ridges, one further on muzzle and another immediately above nostrils, with vertical groove in middle and furred trough between them. Dorsal pelage is light drab brown; venter is paler. Face, ears, and wing membranes are light buff. Rostrum is short and blunt, with ridge across muzzle over nostrils that is well developed and high, with paired mounds joined medially by a conspicuous membrane that expands distally to form a Y-shaped groove. Ears are very large and broad, with bluntly roundedtip, horizontal ribbing on inner surfaces, inward curved anterior edges, and smooth posterior edges (ears can fold back at top ofthick part of anterior edge); large and furred interauricular band crosses forehead between ears; tragus is moderately long and bluntly rounded at tip, being practically straight on anterior margin. Glans penisis slender and lacks very prominent distal lobe; urethral lobe is ventrally U-shaped;it differs from the Lesser Long-eared Bat ( N. geoffroyi) in lacking pronounced dorsal crest and distal lobe that overshoots ventral mound. Baculum has moderately thin shaft in dorsal view, tapering to non-bifurcated tip, base being strongly bifurcated; in lateral view, baculum is curved downward at base, but shaftis straight to pointed tip. Skull is generally similar to the Lesser Long-eared Bat,sagittal crest is weak, rostrum is slightly more depressed and median sulcusis slightly deeper than in the Lesser Long-eared Bat, tympanic bullae are relatively inflated, and M” and M, are moderately reduced.   Habitat.Type specimen was collected over a small stagnant poolin a small dry stream 200 mfrom mangrovesat sea level. Native gardens and occasionally banana and coconut trees bordered the stream.   Food and Feeding.No information.   Breeding.No information.   Activity patterns.No information.   Movements, Home range and Social organization.The Sunda Long-eared Bat apparently forms small colonies.   Status and Conservation.Classified as Data Deficient on The IUCN Red List. The Sunda Long-eared Bat is currently known only from the type locality on Lembata Island. It is likely threatened given its apparent rarity and restricted distribution.   Bibliography.Corbet & Hill (1992), Hutson, Kingstonet al. (2016), Kitchener et al. (1991), Parnaby (2002a, 2009). 3783319328 -8.366667 31.0 49 807