viii. Keys to subfamilies of Vespertilionidae (* denotes records in Sumatra but not in BBSL, # marks records from BBSL only)

1.1. Nostrils tubular, openings directed laterally........................................... subfamily Murininae (A)

1.2. Nostrils not tubular, openings directed frontally........................................................... 2

2.1. Ear funnel-shaped; tragus very long, thin, and sharply pointed.......................... subfamily Kerivoulinae (B)

2.2. Ear shape various but not funnel-shaped; tragus shape and length various, but never as thin as in Kerivoulinae ......... 3

3.1. Three pairs of upper premolars (two in M. ridleyi); tragus moderately pointed and only slightly bent forward........................................................................................... subfamily Myotinae (C)

3.2. One or two pairs of upper premolars; tragus usually not pointed (if pointed, then very sharply bent forward; see Scotophilus).......................................................................... subfamily Vespertilioninae (D)