Rhinolophus thomasi K. Andersen 1905
Creators: name: Burgin, Connor
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinolophidae
Rhinolophus
Rhinolophus thomasi

description: 94. Thomas’s Horseshoe Bat <i>Rhinolophus thomasi</i> French: Rhinolophe deThomas <b>/German:</b> <i>Thomas-Hufeisennase</i> / <b>Spanish:</b> Herradura de Thomas Taxonomy. <i>Rhinolophus thomasi</i> <b>K</b>. Andersen, 1905, “ Karin Hills, Burma [= Myanmar <b>].</b> ” <i>Rhinolophus thomasi</i> is included in the <i>rouxii</i> species group and appears to be sister to <i>R. sinicus septentrionalis,</i> which is likely a distinct species pending revision. Two subspecies are sometimes recognized. Here considered to be monotypic until further studies validate the existence of either subspecies. Distribution. S China, <i>E</i> Myanmar, Thailand, Laos, and Vietnam. Descriptive <b>notes.</b> Head—body 48—50 mm, tail 18—28 mm, ear 16—24 mm, hindfoot 8—10 mm, forearm 40-48 mm; weight 7—11 g. Dorsal pelage is rich brown with a russet tinge (hairs light yellow basally with medium brown tips); ventral pelage is slightly paler. Ears are small. Noseleaf has a short lancet, with an almost rudimentary tip in some cases; connecting process is rounded, as in the Indian Rufous Horseshoe <b>Bat</b> (<i>R.rouxii)</i>; sella is <i>virtually</i> parallel-sided with a broadly rounded-off tip; horseshoe is moderately wide (7-2-8- 9 mm) but does not cover the muzzle <i>completely</i>, and welldeveloped lateral leaflets are usually present. Lower lip has three mental grooves. Baculum is lightly built with double curvature, making an elongated S-shape; basal cone is dorso-ventrally flattened and smaller than in the Indian Rufous Horseshoe Bat; basal emargination is deeper ventrally than dorsally; shaft is laterally compressed, and its proximal ventral constriction is adjacent to the basal cone. Skull is <i>relatively</i> robust (zygomatic width is much greater than mastoid width); anterior median swellings are small; posterior swellings are more developed than the anterior ones; rostral profile is clearly sloped rearward; sagittal crest is moderately high; frontal depression is shallow to moderately deep; supraorbital crests are obliterated or well demarcated. C1 is moderately long; P2 is small and partially to completely extruded from the tooth row; C1 and P4 are touching or separated, depending on how extruded P2 is; P3 is small and completely extruded from the tooth row; P2 and P are touching or nearly so. <b>Habitat.</b> Often associated with limestone areas, and has been recorded in dry forests and disturbed areas. Reported at elevations of 400-1100 m. <b>Food and</b> Feeding. No information. Breeding. Pregnant females have been recorded in late March and April, in Vietnam. <b>Activity</b> patterns. Thomas’s Horseshoe Bat roosts in caves. Call shape is FM/CF/FM with peak F reported at 76-77 kHz in males and 83-85-5 kHz in females, in Laos. <b>Movements, Home range and Social organization.</b> Thomas’s Horseshoe Bats roost in colonies. <b>Status and</b> Conservation. Classified as Least Concern on <i>The IUCNed List.</i> Thomas’s Horseshoe <b>Bat</b> is widespread and does not seem to be facing any major threats, although it may be locally threatened by roost disturbance. Cave destruction in some regions has <i>negatively</i> affected this species, causing local population declines. <b>Bibliography.</b> Bates, Bumrungsri &amp; Csorba (2008f), Bates, <i>Thi</i> Mar-Mar eta/. (2004), Csorba eta/. (2003), ran ­ cis (2008a), <i>Kruskop</i> (2013a), Smith &amp; <i>XieYan</i> (2008), Stoffberg eta/. (2010), Zhang Lin <i>et al.</i> (2018).
description: Published as part of <i>Burgin, Connor, 2019, Rhinolophidae, pp. 280-332 in Handbook of the Mammals of the World – Volume 9 Bats, Barcelona :Lynx Edicions</i> on page 326, DOI: 10.5281/zenodo.3748525