Rhinolophus yunanensis Dobson 1872
Creators: name: Burgin, Connor
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinolophidae
Rhinolophus
Rhinolophus yunanensis

description: 106. Dobson’s Horseshoe <b>Bat</b> <i>Rhinolophus yunanensis</i> French: Rhinolophe <i>duYunnan</i> / <b> <i>German</i>:</b> Dobson-Hufeisennase / <b>Spanish:</b> Herradura <i>de</i> Yunnan Taxonomy. <i>Rhinolophus yunanensis</i> Dobson, 1872, “ Hotha, Yunan,” China. <i>Rhinolophus yunanensis</i> is included in the <i>pearsonii</i> species group. Populations now attributed to <i>thailandensis</i> were previously considered to represent <i>R</i> <i>yunanensis,</i> incorporating specimens from Thailand. The study that described <i>R. thai -</i> <i>landensis</i> only examined specimens of <i>R. yunanensis</i> from Yunnan and Sichuan, China, and Thailand; this leaves some ambiguity regarding the rest of the distribution attributed to <i>R.yunanensis.</i> The paper restricted <i>R.yunanensis</i> to China, but the rest of the distribution is here included tentatively under this species, until a <i>revision</i> incorporating specimens from the whole range is undertaken. Monotypic. <b>Distribution.</b> Known with certainty only from S China (Sichuan and Yunnan), <i>but</i> populations from NE India (Arunachal Pradesh and Mizoram) and N &amp; E Myanmar are tentatively included in this species; a dubious record in Guizhou (S China) and <i>it</i> may <i>occur</i> in Laos. Descriptive <b>notes.</b> Head—body 52- 4—72 mm, tail 18-28 mm, ear 19- 9—27 mm, hindfoot 10-8-14- 7 mm, forearm 55-5—59- 2 mm; <i>weight</i> 20-22 g. Fur is woolly, glossy, and dense; dorsal pelage is light grayish brown to dark gray (hairs unicolored), while ventral pelage is paler. Ears are medium-sized to large. Noseleaf has a long, triangular, straight-sided lancet; connecting process forms a low, rounded arch; sella has a wide base that narrows toward the middle and tapers slightly toward the tip; horseshoe is wide (12- 5—14 mm), covering the whole muzzle, and has a deep and distinct median emargination. Lower lip has one mental groove. Baculum is <i>relatively</i> short but strong (4 mm long) and has a strong basal cone (strong compared to the Thailand Horseshoe Bat,. <i>thailandensis)</i> and a <i>roughly</i> cylindrical shaft; tip is narrowly rounded offand <i>laterally</i> widened. Skull is large and heavily built (zygomatic width much greater than mastoid width); anterior median swellings are longer than <b>wide</b> (width is less than in the Thailand Horseshoe Bat); lateral swellings are much larger than the anterior ones; sagittal crest is strong, especially anteriorly; frontal depression is <i>relatively</i> shallow; supraorbital crests are low but well defined. C1 is strong and well developed; P2 is large and in the tooth row; P3 is moderate in size and more or less extruded from the tooth row, or very <i>rarely</i> absent. Dental formula is the typical of 32 teeth or 30 when a lower premolar is missing. Chromosomal complement has 2n = 46 and FNa = 60 (Sichuan) or 2n = 44 and FNa = 60 (Guizhou, possibly refers to Pearson’s Horseshoe <b>Bat</b>, <i>R.pearsonii).</i> Habitat. Commonly found in dense hilly forests among bamboo clumps, and is often recorded around limestone caves. Dobson’s Horseshoe Bat is known from bamboo thickets in China, where it may roost. Typically found at elevations of 600-1300 m. <b>Food and</b> Feeding. No information. Breeding. No information. <b>Activity patterns.</b> Dobson’s Horseshoe Bat roosts in limestone caves and has been captured in bamboo thickets and thatched roofs. An echolocation call from Sichuan with a peak F of 48 kHz probably represents this species. <i>Movements</i>, <b>Home range and Social</b> organization. No information. <b>Status and Conservation.</b> Classified as Least Concern on <i>The IUCNed List.</i> Dobson’s Horseshoe Bat appears to be uncommon throughout much of its distribution. It greatest threat is probably local habitat loss due to commercial logging and agricultural expansion; there do not appear to be any major threats identified at the moment. <b>Bibliography.</b> Bates &amp; Harrison (1997), Bates, <i>Bumrungsri</i>, Csorba, Molur &amp; Srinivasulu (2008b), Bates, <i>Thi Mar-Mar</i> et <i>al.</i> (2004), Csorba et <i>al.</i> (2003), Francis (2008a), Gu Xiaoming (2006), <i>Hill</i> (1986 <i>b</i>), Molur <i>et</i> al. (2002), Smith &amp; Xie Yan (2008), <i>WuYi</i>, Harada &amp; Motokawa (2009), Zhang Libiao, Jones <i>et al.</i> (2009).
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 331, DOI: 10.5281/zenodo.3748525