. Catalogue of the Chiroptera in the collection of the ... Museum. riKuoPUs. 71 as lo be ik^ui'Ij' si]u,iris!i in /'/. hucu/iU' ([>;iil icuhirly in fJio U])pi'r jaw). All the check-teeth are reduced, especially in width, in PL suhnvjer. And the extreme of degeneiation is reached h}- J't. pgrsonittus, sca/>nh(tHS (figs. 9 1), i)', lU E, E'), and uwodfon/i, in which the cheek teeth are excessively narrow ; a perfect parallel to this peculiarity is seen in one species oIl Jiousetiux {li. lanosus) and in the Macroglossi ; in the general shu])e of the teeth Pt. personatus, aai/mhitus, and
. Catalogue of the Chiroptera in the collection of the ... Museum. riKuoPUs. 71 as lo be ik^ui'Ij' si]u,iris!i in /'/. hucu/iU' ([>;iil icuhirly in fJio U])pi'r jaw). All the check-teeth are reduced, especially in width, in PL suhnvjer. And the extreme of degeneiation is reached h}- J't. pgrsonittus, sca/>nh(tHS (figs. 9 1), i)', lU E, E'), and uwodfon/i, in which the cheek teeth are excessively narrow ; a perfect parallel to this peculiarity is seen in one species oIl Jiousetiux {li. lanosus) and in the Macroglossi ; in the general shu])e of the teeth Pt. personatus, aai/mhitus, and woodfordi bear in fact no small resemblance to Eonyder'ts It should l)e noticed that a reduction of the general size of the clieek-teeth (m length only, bieadth only, or both in length and breadth) is a character developed independently by species of entirely different groups of the genus {Pt. suhnhjer, a member of the hifpomelaaus group; Pt. moJossinus, of the loniboc- eu-tis group; Pt. ]ierso)iatHS, of the teinniiucJii group; l^t. .sOTj)M?« and woodfordi, geminate species fbrming a small natural group), and therefore far from being indicative of natural relationship. The moditication is ])robably in all cases due to adaptation to a kind of food which rcijuircs less mastication than that taken by the majority of Fig. 11. — Palale-ritlges, typical Pteropiiie number and arrangeiueMl, funiiiila 5-|-r)-l-3 (see text, infra) {Pt. hypomelanus tomesi, ^). 1. Falate-riclf/es (fig. 11).—(1) The apparently commonest formula is 5 + 5 + 3, five anterior, undivided, five middle, separated iu the median line, and three posterior, approximately wedge-shaped, situated near the hindei- border of the i)alate ; tliis formula has been observed iu Pt. alecto, inii-tiittws, cJiri/.^ca'chen. , tormosi(.s-, (jirjaiittus, i/riseus, hi/jwiiieianus, kupi/ru,t. In some of these species there is a more or less incomplete, sometimes nearly fully developed
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Keywords: ., bookcentury1900, bookdecade191, bookpublisherlondon, bookyear1912
