Rhinolophus sakejiensis Cotterill 2002
Creators: name: Burgin, Connor
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Chiroptera
Rhinolophidae
Rhinolophus
Rhinolophus sakejiensis

description: 29. Sakeji Horseshoe <b>Bat</b> <i>Rhinolophus sakejiensis</i> French: Rhinolophe de la <i>Sakeji</i> / <b>German:</b> Sakeji-Hufeisennase / <b>Spanish:</b> Herradura de <i>Sakeji</i> <b>Taxonomy.</b> <i>Rhinolophus sakejiensis</i> Cotterill, 2002, “ Kavunda (11°17’ S; 24°2 <i>' E</i>) between the Sakeji and Zambezi rivers: c. 11 km north-north-east of the source of the Zambezi River in the Ikelenge Pedicle, Mwinilunga District of north-west Zambia.” <i>Rhinolophus</i> sakejiensis is in the <i>ferrumequinum</i> species group based on morphology, but its exact relationships are uncertain. Monotypic. <b>Distribution.</b> Known only from type locality in NW Zambia. Descriptive <b>notes.</b> <i>Head—body c</i>.57-58 nun, tail 29—31 mm, ear 20—22 mm, hindfoot 14—15 mm, forearm 53—55 mm; weight 19—24 g. Dorsal pelage is bright brownish orange (hairs are orange with darker tips); venter is bright yellowish orange; and <i>eyes</i> are surrounded <i>by</i> darker brown fur. No gray morph has been reported. Males seem to lack axillary tufts. Ears are short and dark brown. Noseleaf has hastate lancet; connecting process rises <i>steeply</i> to high, narrow, and rounded tip, being much higher than height of sella; sella is naked with broad, rounded tip that is angled forward and with <i>slightly</i> concave sides; and horseshoe is medium in width at <i>c</i>. 10-11 mm, does not cover entire muzzle and has lateral leaflets and wide, deep median emargination. Lower lip has one conspicuous median groove and two faint lateral grooves. <i>Wings</i> and uropatagium are dark blackish brown. Baculum is trumpet-shaped, with dorso-ventrally flattened shaft. Skull is extremely robust, with robust zygomatic arches (zygomatic width is wider than mastoid width); nasal swellings are <i>relatively</i> low and not <i>smoothly</i> rounded; frontal depression is <i>very</i> shallow and supraorbital ridges are inconspicuous; sagittal crest is well developed anteriorly but <i>weakly</i> developed <i>posteriorly</i>; and interpterygoid groove is shallow. P2 is absent, allowing C1 and P4 to touch, and P3 is absent, allowing P2 and P4 to touch. Dental formula is 11/2, C 1/1, P 1/2, M 3/3 (x2) = 28. <b>Habitat.</b> <i>Wet</i> miombo woodland mosaic at an elevation of 1388 m. <b>Food and</b> Feeding. No information. Breeding. No information. <b>Activity patterns.</b> Only known specimens of the Sakeji Horseshoe Bat were collected while roosting during the day, hanging in evergreen foliage on the underside of a branch at base of a large tree. This kind of day roost is rather unusual for a rhinolophid. <b>Movements, Home range and Social</b> organization. All known specimens of the Sakeji Horseshoe Bat <i>were</i> captured from a day roost that had a group of six individuals. <b>Status and</b> Conservation. Classified as Data Deficient on <i>The IUCNRed List.</i> The Sakeji Horseshoe Bat is known from only three specimens at a single location, and no information on its natural history and ecology is known. It might be threatened by logging and agricultural expansion, <i>but</i> additional research is needed. <b>Bibliography.</b> ACR (2018), <i>Cotterill</i> (2002a, 2008a, 2013c), Csorba et al. (2003).
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 pages 294-295, DOI: 10.5281/zenodo.3748525