. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OF BATS. 205 Teeth strictly normal and not differing in any essential features from those of Myotis and Lasionyvteris, except in the absence of both pm3 and pm „. Outer upper incisor not as large as inner, but extend- ing considerably beyond its cingulum. Inner upper incisor simple, or more often with a well-developed secondary ; Canines usually rather stout, the posterior cutting edge of upper tooth often, though not invariably, with incipient secondary cusp. Anterior upper pre- molar barely or not in toothrow.
. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OF BATS. 205 Teeth strictly normal and not differing in any essential features from those of Myotis and Lasionyvteris, except in the absence of both pm3 and pm „. Outer upper incisor not as large as inner, but extend- ing considerably beyond its cingulum. Inner upper incisor simple, or more often with a well-developed secondary ; Canines usually rather stout, the posterior cutting edge of upper tooth often, though not invariably, with incipient secondary cusp. Anterior upper pre- molar barely or not in toothrow. Other teeth with no special peculi- arities. Skull (fig. 32) essentially as in Myotis, though with a tend- ency to greater breadth. External charac- ters not essentially different from those of Myotis, but ear usually shorter and broader, and tragus less acutely pointed; in some spe- cies bent forward at tip. Species examined.—About half the known species have been examined. Remarks. — As stated by Flower and Lydekker, the coracoid in Pipistrellus is bi- fid at tip, though very slightly. It differs further from that of Myotis in its much slighter curvature. The members of the genus are recognizable by their dental for- FlG- pipistrel- mula, large outer upper incisor, unmodified skull and ears, and the normally long fifth finger. The species are all small, some of them the smallest of known bats. Genus GLISCHROPUS Dobson. 1875. Glischropus Dobson, I'roc. Zool. Soc. London, p. 472 (nanus and tylo- pus). Subgenus of Vesperugo. 1878. Vesperugo Dobson, Catal. Chiropt. Brit. Mus., p. 183 (part). Type-species.—Vesperugo tylopus Dobson. Geographic distribution.—Borneo and Batchian. Number of forms.—This genus, as here understood, contains the species tylopus Dobson and batehianus Matschie and href til Peters; nanus, although referred to it by Dobson, proves to have the teeth of true Pipistrellus. Characters.—Externally like Pipistrellus, but with the call
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbats, bookyear1907
