Rhinolophus shortridgei, K. Andersen, 1918

Burgin, Connor, 2019, Rhinolophidae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 280-332 : 312

67 . Shortridge’s Horseshoe Bat

Rhinolophus shortridgei

French: Rhinolophe de Shortridge / German: Shortridge-Hufeisennase / Spanish: Herradura de Shortridge

Taxonomy. Rhinolophus lepidus shortridgei K. Andersen, 1918 ,

“ Pagan, R[iver ]. Irrawaddy, Burma [= Myanmar].”

Rhinolophus shortridgei is included in the pusiUus species group; it is close to R monticolus, and together these two make R pusiUus paraphyletic. Rhinolophus shortridgei was previously included in R lepidus , but is recognized as a distinct species based on morphological and genetic differences presented by G. Csorba and colleagues in 2003 and by P. Soisook and others in 2016. The precise distribution of this species has not been well established in the areas where it comes together with R lepidus , especially as the two are sympatric in some areas. Monotypic.

Distribution. NE India (Falta, West Bengal), N & C Myanmar, and S & SE China.

Descriptive notes. Head-body 40- 6-59 mm, tail 16-1-29- 4 mm, ear 14-20 mm, hindfoot 6-9- 7 mm, forearm 38- 2—43 mm; weight 5-5—8- 8 g. Shortridge’s Horseshoe Bat is at present externally inseparable from Blyth’s Horseshoe Bat ( lepidus ); only dried study skins are known for the species, so the external characteristics remain rather uncertain. Dorsal pelage is fight brown on the upper side, whereas ventral pelage is much paler, dirty white or gray. Ears are moderate in size. Noseleaf has a concave-sided lancet; connecting process is a pointed triangle; sella is more or less parallel-sided and widely rounded above; horseshoe does not cover muzzle (6-7— 7-9 mm wide) and has small lateral leaflets. Lower lip has three mental grooves. Skull is robust (zygomatic width is larger than mastoid width); anterior median swellings are low and very small; posterior compartments are relatively large; rostral profile is slightly curved upward near tip; sagittal crest is very well developed; frontal depression is shallow; supraorbital crests are conspicuous. C1 is widebased and long; P2 is medium-sized and within tooth row; P3 is small to moderate in size and half to fully displaced from tooth row, usually separating P2 from P4.

Habitat In Myanmar, Shortridge’s Horseshoe Bat has been collected in seasonally dry dipterocarp forest.

Food and Feeding. No information.

Breeding. No information.

Activity patterns. Shortridge’s Horseshoe Bat is nocturnal. Search call shape is FM/ CF/FM with a peak F recorded at 94-5-100-7 kHz in Myanmar, females having higher frequency calls than males.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Least Concern on The IUCNed List. Shortridge’s Horseshoe Bat is widespread, and there are currently no major threats known to be affecting it. Virtually nothing is known of this species’ ecology, and further studies are needed.

Bibliography. Bates et al. (2004), Chiozza (2008b), Csorba (2002), Csorba eta/. (2003), rancis (2008a), Smith & XieYan (2008), Soisook et al. (2016).

Figures

On following pages: 52. Eastern Horseshoe Bat (Rhinolophus megaphyllus}; 53. Insular Horseshoe Bat (Rhinolophus keyensis}; 54. Yellow-faced Horseshoe Bat (Rhinolophus virgo}; 55. Madura Horseshoe Bat (Rhinolophus madurensis}; 56. Sulawesi Horseshoe Bat (Rhinolophus celebensis}; 57. Robinson's Horseshoe Bat (Rhinolophus robinsoni); 58. Indochinese Horseshoe Bat (Rhinolophus chasem); 59. Anamban Horseshoe Bat (Rhinolophus nereis}; 60. Bornean Horseshoe Bat (Rhinolophus borneensis); 61. Malayan Horseshoe Bat (Rhinolophus malayanus}; 62. Acuminate Horseshoe Bat (Rhinolophus acuminatus}; 63. Acuminate Horseshoe Bat (Rhinolophus acuminatus}; 64. Little Japanese Horseshoe Bat (Rhinolophus cornutus}; 65. Yaeyama Horseshoe Bat (Rhinolophus perditus}; 66. Mountain Horseshoe Bat (Rhinolophus monticolus}; 67. Shortridge's Horseshoe Bat (Rhinolophus shortridgei}; 68. Formosan Horseshoe Bat (Rhinolophus monoceros}; 69. Least Horseshoe Bat (Rhinolophus pusillus}; 70. Little Nepalese Horseshoe Bat (Rhinolophus subbadius}; 71. Convex Horseshoe Bat (Rhinolophus convexus}; 72. Andaman Horseshoe Bat (Rhinolophus cognatus}; 73. Glossy Horseshoe Bat (Rhinolophus refulgens}; 74. Blyth's Horseshoe Bat (Rhinolophus lepidus};

Distribution. NE India (Falta, West Bengal), N & C Myanmar , and S & SE China .