361.

Gilded Tube-nosed Bat

Murina rozendaali

French: Murine de Rozendaal / German: Rozendaal-Réhrennase / Spanish: Ratonero narizudo de Rozendaal

Taxonomy. Murina rozendaali Hill & Francis, 1984,

“Gomantong, Sabah [Borneo], 5°31’ N, 118 04 E).”

Phylogenetic relationship of M. rozendaali to other Murina is uncertain, but limited genetic data place it as sister to a clade including M. eleryi, M. balaensis, M. gracilis, and M. recondita . Monotypic.

Distribution. Malay Peninsula, lowland Borneo (most records from the N), and S Sumatra (Lampung).

Descriptive notes. Head-body 40-4-44- 4 mm, tail 29- 2—41 mm, ear 12- 3-15 mm, hindfoot 7-6-8- 1 mm, forearm 28-335 mm; weight 3-8- 5 g. Fursilky. Dorsal pelage is shiny yellowish brown (hairs with dark brown bases and shiny golden yellowish or golden orange reddish tips); venter is yellowish white, being more orange near chin (hair unicolored). Dorsal pelage extends sparsely onto wings, uropatagium, thumbs, and feet. Face is sparsely haired except for long protuberant naked nostrils. Ears are short, broad, and rounded, with smoothly convex anterior margins, distinct notch on posterior margins, and broadly rounded tips; tragus is long and narrow and tapers toward pointed tip. Wing attaches near base of claw on first toe. Males have very large scrotal gland below penis and additional glands that extend halfway down uropatagium. Skull has slender rostrum and slightly inflated braincase; I? is lateral to I%; C! is twice the height of P*; P* is two-thirds the height of P*; M' and M? have well-developed mesostyles, with slightly convex labial surfaces; and talonids of M| and M, are equal in size to their respective trigonids.

Habitat. Mostly lowland evergreen and dipterocarp forests form sea level up to elevations of ¢. 1500 m (most common in lowlands).

Food and Feeding. No information.

Breeding. Male Gilded Tube-nosed Bats with enlarged scrotal glands were caught in August—-October. Purpose of these glands is uncertain, but they likely are used for sexual marking. These glands secrete a clear, pungent liquid.

Activity patterns. Calls of Gilded Tube-nosed Bats have steep FM sweeps, with average start frequency of 162 kHz (146-182 kHz), end frequency of 42-1 kHz (20-4- 50-6 kHz), peak frequency of 85-4 kHz (63-9-99-7 kHz), and duration of 5-5 milliseconds (3:4-8-9 milliseconds) in Thailand.

Movements, Home range and Social organization. No information.

Status and Conservation. Classified as Vulnerable on The IUCN Red List. The Gilded Tube-nosed Bat has been considered to have a limited distribution but has been recently collected from new localities. It appears to be uncommon but is relatively widespread.

Bibliography. Francis (1997 2008a), Hill & Francis (1984), Huang, J.C.C. et al. (2014), Hutson & Kingston (2008f), Joann et al. (2011), Masmin et al. (2016), Mohd-Ridwan et al. (2018), Soisook (2013), Soisook, Thaw Win-Naing et al. (2017), Struebig, Bozek et al. (2012), Struebig, Galdikas & Suatma (2006), Struebig, Kingston et al. (2008), Suyanto & Struebig (2007).