. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OP BATS. Genus PTEROCYON Peters. 55 1861. Pterocyon Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, I, p. 423 (paleaceus=stramineus). 1878. Cynonycteris Dobson, Catal. Chiropt. Brit. Mus., p. 70 (part). 1881. Leiponyx Jentink, Notes from the Leydeu Museum, III, p. 59. (Leiponyx buttikoferi.) 1899. Pterocyon Matschie, Flederm. des Berliner Mus. fur Naturk., p. 62. (Subgenus of Xantharpyia=Rousettus.) 1899. Leiponyx Matschie, Flederm. des Berliner Mus. ftir Naturk., p. 85. (genus.) Type-species.—Pteropus stramineus G
. The families and genera of bats . Bats; Bats. THE FAMILIES AND GENERA OP BATS. Genus PTEROCYON Peters. 55 1861. Pterocyon Peters, Monatsber. k. preuss. Akad. Wissensch., Berlin, I, p. 423 (paleaceus=stramineus). 1878. Cynonycteris Dobson, Catal. Chiropt. Brit. Mus., p. 70 (part). 1881. Leiponyx Jentink, Notes from the Leydeu Museum, III, p. 59. (Leiponyx buttikoferi.) 1899. Pterocyon Matschie, Flederm. des Berliner Mus. fur Naturk., p. 62. (Subgenus of Xantharpyia=Rousettus.) 1899. Leiponyx Matschie, Flederm. des Berliner Mus. ftir Naturk., p. 85. (genus.) Type-species.—Pteropus stramineus Geoffroy. Geographic distribution.—Arabia; Africa south of the Sahara; Madagascar. Number of forms.—Three species of Pterocyon are now known. Characters.—Dental formula 2 3. 1. 2345 6- .2 2 1 c 1. -234567 2-2' 1-1 pin 3-3 2-2 '"3^3' m 3^3 = 34. Teeth as in Rousettus ex- cept that the crowns of the lower incisors are not grooved on the anterior face, and the cutting edges are uniformly ; The skull (fig. 7), while in general closely resembling that of Rousettus is distin- guished by the remarkable development of the audital bullae, the outer portion of which is distinctly differen- tiated from the inner as a prominent lip or short tube surrounding the meatus. (Fig. 7.) Nothing compar- able to this structure occurs in the related genera or in any of the bats that I have examined Fig. "I—A, Rousettus amplexicaudatus. adult female. Caves near Maulmain, Burma. No. 37930. x2. B, Pterycyonstramineus. Adult female. Robertsport, Liberia. No. 102461. x2. External chraacters as in a In the species of Rousettus now known the crown of the first lower molar is scarcely longer than that of the second, while in Pterocyon stramineus and P. dupreanus it is about as long as the second and third together. This char- acter has been made very prominent by Matschie, but I do not consider it of special taxonomic importance, however convenient it may be as a m
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbats, bookyear1907
