Bulletin of the Natural History Museum Zoology Series
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ISSN 0968-0470 Bulletin of The Natural History Museum PKfcSfc WTED gg frgflAL UBQARY Zoology Series j VOLUME 68 NUMBER 1 27 JUNE 2002 1 The Bulletin of The Natural History Museum (formerly: Bulletin of the British Museum (Natural History) ), instituted in 1949, is issued in four scientific series, Botany, Entomology, Geology (incorporating Mineralogy) and Zoology. The Zoology Series is edited in the Museum's Department of Zoology Keeper of Zoology Prof P.S. Rainbow Editor of Bulletin: Dr B.T. Clarke Papers in the Bulletin are primarily the results of research carried out on the unique and ever-growing collections of the Museum, both by the scientific staff and by specialists from elsewhere who make use of the Museum's resources. Many of the papers are works of reference that will remain indispensable for years to come. All papers submitted for publication are subjected to external peer review before acceptance. 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Copyright © 2002 The Natural History Museum ELECTRONIC ACCESS This journal is included in the Cambridge Journals Online service which can be found at: http://journals.cambridge.org For further information on other Press titles access http://uk.cambridge.org or http://us.cambridge.org World list abbreviation: Bull. nat. Hist. Mus. Lond. (Zool.) ISSN 0968-0470 The Natural History Museum Zoology Series Cromwell Road Vol. 68, No. 1, pp. 1-50 London SW7 5BD Issued 27 June 2002 Typeset by Ann Buchan (Typesetters). Middlesex Printed in Great Britain by Henry Ling Ltd.. at the Dorset Press, Dorchester. Dorset 1 . Xx£^i:2 &c3i Bull. not. Hist. Mu.s. Loud. (Zool.) 68( 1 ): 1-1 Issued 27 June 2002 Another variation on the gymnure theme: description of a new species of Hylomys (Lipotyphla, Erinaceidae, Galericinae). nrMFSAt LIBRARY PAULINA D. JENKINS Department of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD MARK F. ROBINSON Waterway Conservation & Regeneration. British Waterways, Llanthony Warehouse, Gloucester Docks, Gloucester, GLJ 2EJ SYNOPSIS. A new species of Hylomys from Lao Peoples Democratic Republic is described, based on morphological comparisons with other members of the subfamily Galericinae. The relationships revealed by a phylogenetic analysis are discussed and compared with those of a previous published analysis. INTRODUCTION restricted to Hainan Island. PDR China and H. parvus is known only from Sumatra, Indonesia. Another geographically isolated undescribed gymnure has been discovered recently from a region of The Family Erinaceidae is divided into two subfamilies: the wide- limestone karst in the Lao PDR. While sharing many characters with spread Erinaceinae (hedgehogs) occuring in Africa, Europe and other species of Hylomys this new species also differs markedly Asia, and the Galericinae (moonrats and gymnures), which is con- from its congeners and, furthermore, shares some features with fined to southeast Asia, Indonesia and the Philippines. There has geographically remote species of Podogymnura. The new taxon has been considerable disagreement over the correct name to apply to been compared in particular with specimens of H. suillus, although the subfamily of moonrats and gymnures, summarised by Frost et al. there is no indication that the two species occur sympatrically, and (1991), who favoured the use of Hylomyinae. McKenna & Bell also with H. sinensis, H. panus and. in the absence of specimens, (1997) pointed out however, that the use of Galericini as a tribal with the original description of H. hainanensis and the figures of the name by Butler (1948) had been accepted by many subsequent skull of this species in Frost et al. ( 1991 ). In addition comparisons writers, particularly palaeontologists, and was therefore the appro- were made with the other genera of Galericinae: Echinosorex priate name to use. In this paper we follow McKenna & Bell ( 1997) gymnura (Raffles, 1822) from Malaysia and Indonesia, and in using the name Galericinae. Most authors up to and including Podogymnura truei Mearns. 1905 from the Philippines. In order to Corbet (1988), considered that the Galericinae includes five genera: assess phylogenetic relationships, both the new taxon and H. parvus Echinosorex Blainville, 1838, Hylomys Miiller, 1840, Neotetracus were analysed using the criteria employed by Frost et al. (1991). Trouessart, 1909, Neohylomys Shaw & Wong, 1959 and Podogymnura Mearns, 1905, all but the latter being monotypic. In their revision of the family Erinaceidae, Frost et <://.( 1991) con- MATERIAL AND METHODS cluded that there are only three valid genera within the Galericinae: Echinosorex, Podogymnura and Hylomys. They accepted Hylomys Comparative material was examined from the collections of the as a rather variable but nevertheless monophyletic genus, although Natural History Museum (BMNH), London (formerly the British they conceded that there was evidence to support the retention of Museum (Natural History)), the American Museum of Natural Neotetracus and Neohylomys as subgenera. History, New York (AMNH), the Museum National d'Histoire The genus Hylomys is widely distributed in southeast Asia and Naturelle, Paris (MNHN) and the Thailand Institute of Scientific Indonesia. Hylomys suillus Miiller, 1840 occurs in Malaysia, Indo- and Technological Research, Bangkok (TISTR), as listed in Table 1 nesia, Thailand. Vietnam. Cambodia, Lao Peoples Democratic All measurements are in millimetres and were taken using digital Republic (PDR), Myanmar and southern PDR China; in Lao PDR it calipers. Cranial and dental nomenclature follows Butler (1948), has been recorded from Phongsali, Xiangkhouang, Vientiane and Novacek (1986), Frost et al. (1991) and Gould (1995). Dental Dong Hua Sao National Biodiversity Conservation Area (NBCA) notations are indicated in the text in the following manner, with (Robinson, 1999). A number of different subspecies have been premaxillary and maxillary teeth denoted by uppercase letters and attributed to H. suillus and the biochemical and metrical variation mandibular teeth by lowercase: incisor (I/i), canine (C/c), premolar within this species was examined by Ruedi et al. (1994). They (P/p), molar (M/m), thus P3 refers to the third upper premolar, i2 to recognised that much of the high level of variation could be attrib- the second lower incisor. uted to the geographical and altitudinal isolation of the named forms but demonstrated that one of these taxa, H. pan'iis Robinson & Kloss, 1916, merited specific status. Hylomys sinensis (Trouessart, 1909) occurs from southern China to Myanmar and northern Viet- PHYLOGENETIC ANALYSIS nam; it has not been recorded from Lao PDR but is likely to occur in those areas adjacent to northern Vietnam, whence it is recorded by Cranial, dental, skeletal and external characters were scored for