English: Title: Bulletin of the Natural History Museum Zoology

Identifier: bulletinofnatura631nat Year: 1997 (1990s) Authors: Natural History Museum (London) Subjects: Publisher: Andover : Intercept Contributing Library: Natural History Museum Library, London Digitizing Sponsor: Natural History Museum Library, London

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Text Appearing Before Image: P.D. JENKINS, C.J. RAXWORTHY AND R.A. NUSSBAUM

Text Appearing After Image: Fig. 2 Dorsal view of skins from left to right of Microgale drouhardi (FMNH 154565), M.fotsifotsy (FMNH 154590) and M. parvula (FMNH 151620). incisors (dll anddil) respectively considerably smaller than II and il (see Figs 4 and 5). Principal cusp of dll slender, distostyle present, no anterior accessory cusp; morphology of deciduous sec- ond upper incisor (dI2) similar to 12 but smaller; deciduous third upper incisor (dI3) very small, less than height of distostyle of dI2. Deciduous upper canine (dC) subequal in height to deciduous second upper premolar (dP3), distostyle distinct, anterior accessory cusp present. Trace of anterior cuspid on deciduous first upper premolar (dP2); deciduous second upper premolar (dP3) with dis- tinct mesostyle and distostyle present. Deciduous first lower incisor (di 1) subequal in height to second deciduous lower incisor (di2) but considerably smaller in occlusal area; di2 similar in morphology to i2, with or without a small lingual cusp. Deciduous third incisor (di3) shed in all specimens examined. Deciduous lower canine (dc) and first lower premolar (dp2) similar in morphology to respective permanent counterparts but smaller, with trace of anterolingual cuspid; deciduous second lower premolar (dp3) taller than dc (un- like permanent dentition), metaconid present or indicated. Eruption sequence partially determined: i3 to 13, II to il, P2/p2, I2/i2, P4/p4; P3/p3 and C/c last teeth to erupt but sequence remains to be determined. Intraspecific variation. The known populations of this undescribed species are geographically widely separated and this is reflected in the moderately high degree of intraspecific variation. There is slight variation in pelage coloration: specimens from PN de la Montagne d'Ambre are generally paler than those from RS d'Ambatovaky, RNI de Zahamena and RNI d'Andringitra which also often have a reddish buff wash; specimens from RNI de Zahamena often show a reddish buff wash ventrally, while those from RNI d'Andringitra have a buff wash. Specimens from the RNI d'Andringitra and RNI de Zahamena populations are larger on average than either of the other populations (see Table 1), particu- larly in cranial dimensions. The two specimens from Marosohy, although geographically closer to the RNI d'Andringitra specimens in southeastern Madagascar are, however more similar to the PN de la Montagne d'Ambre specimens in size, as is the single juvenile specimen from RS d'Ambatovaky. There is some evidence of corre- lation between size and altitude; specimens from localities at lower

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