Hipposideros griffini, Thong, Puechmaille, Denzinger, Dietz, Csorba, Bates, Teeling & Schnitzler, 2012

Don E. Wilson & Russell A. Mittermeier, 2019, Hipposideridae, Handbook of the Mammals of the World – Volume 9 Bats, Barcelona: Lynx Edicions, pp. 227-258 : 238

28.

Griffin’s Leaf-nosed Bat

Hipposideros griffini

French: Phyllorhine de Griffin / German: Griffin-Rundblattnase / Spanish: Hiposidérido de Griffin

Other common names: Griffin's Roundleaf Bat

Taxonomy. Hipposideros griffini Thong et aL, 2012 ,

“Cat Ba National Park, Cat Ba Island, Ha Long Bay, Vietnam, 20°48’N, 107°01'E, 248 m above sea level (m a.s.l.).”

Hipposideros griffini is in the armiger species group. Monotypic.

Distribution. NE & C Vietnam, known only from Cat Ba I, Ha Long Bay (Haiphong Province) and Chu Mom Ray National Park (Kon Turn Province).

Descriptive notes. Ear 27-5-30 mm, hindfoot 14-1-15-8 mm, forearm 83-3-90 mm; weight 44 g. Pelage of Griffin’s Leaf-nosed Bat is brownish or grayish, being darker on dorsum than on ventral area; on each hair, distal part is also darker than basal portion. This species presents four pairs of supplementary lateral leaflets. Second pair of leaflets is longest and widest. Fourth pair of leaflets is shortest and least pronounced, whereas posterior part of third leaflet is merged with an excrescence. Upper edge of posterior leaf is cusp-shaped. Ears are triangular and tail is long. Males present a noticeable excrescence and a sexual sac, which become more pronounced during breeding season.

Habitat. Both primary and degraded forest. Griffin’s Leaf-nosed Bat has been reported in karstic mountain areas, as well as in lowlands.

Food and Feeding. Foraging behavior and diet are still unknown for Griffin’s Leafnosed Bat, but it probably forages in primary as well as disturbed forests; its diet may be based on insects.

Breeding. One young was captured in June. Males have been reported breeding in August at Chu Mom Ray National Park.

Activity patterns. Griffin’s Leaf-nosed Bat has been reported roosting in rock piles, crevices, caves, old mines, and hollow trees. Echolocation call frequency is c.76-6— 79-2 kHz.

Movements, Home range and Social organization. Griffin’s Leaf-nosed Bat roosts alone or in pairs.

Status and Conservation. Not assessed on 7%e IUCNRed List due to its recent recognition as a species. More research on the ecology and population size and trends of Griffin’s Leaf-nosed Bat is needed to permit the establishment of adequate conservation and management measures.

Bibliography. Thong Vu Dinh, Puechmaille, Denzinger, Dietz et al. (2012)

Figures

24. Large-eared Leaf-nosed Bat (Hipposideros megalotis), 25. Boeadi’s Leaf-nosed Bat (Hipposideros boeadii), 26. Ha Long Leaf-nosed Bat (Hipposideros alongensis), 27. Great Himalayan Leaf-nosed Bat (Hipposideros armiger), 28. Griffin’s Leaf-nosed Bat (Hipposideros griffoni), 29. Pendlebury’s Leaf-nosed Bat (Hipposideros pendleburyi), 30. Lesser Leaf-nosed Bat (Hipposideros turpis), 31. Grand Leaf-nosed Bat (Hipposideros grandis), 32. Horsfield’s Leaf-nosed Bat (Hipposideros larvatus), 33. Maduran Leaf-nosed Bat (Hipposideros madurae), 34. Sorensen’s Leaf-nosed Bat (Hipposideros sorenseni), 35. Sumban Leaf-nosed Bat (Hipposideros sumbae), 36. Shield-faced Leaf-nosed Bat (Hipposideros lylei), 37. Pratt’s Leaf-nosed Bat (Hipposideros pratti), 38. Shield-nosed Leaf-nosed Bat (Hipposideros scutinares), 39. Makira Leaf-nosed Bat (Hipposideros demissus), 40. Diadem Leaf-nosed Bat (Hipposideros diadema), 41. Fierce Leaf-nosed Bat (Hipposideros dinops), 42. Crested Leaf-nosed Bat (Hipposideros inexpectatus), 43. Amhem Leaf-nosed Bat (Hipposideros inomatus), 44. Indian Leaf-nosed Bat (Hipposideros lankadiva), 45. Large Asian Leaf-nosed Bat (Hipposideros lekaguli), 46. Peleng Leaf-nosed Bat (Hipposideros pelingensis)

Distribution. NE & C Vietnam , known only from Cat Ba I, Ha Long Bay (Haiphong Province) and Chu Mom Ray National Park (Kon Turn Province).