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Show 106 MR. K. ANDERSEN ON BATS [May 16, specimen is slightly smaller than the smallest example of himalayanus I have seen, the tibia is fully as long as (if anything, a trifle longer) than in the very largest of these latter. On the whole, I have but very little doubt that Rh. a. typicus will prove to be much more closely related to the Burmese and Himalayan forms than to any of the others. This would be an additional evidence of the closer connection between the fauna of Java and that of Indo-Cliina and the Himalayas-closer than between Java and the geographically nearer Sumatra, Malacca, and Borneo. Distribution. Java. 13 g. R h in o lo p h u s a f f in is p r in c e p s , subsp. n. (Plate III. %• 13.) Diagnosis. External characters: General size moderate; tail short; but largest in the size of the horse-shoe and ears, and the length of the tibia. Skull, nasal swellings, tooth-rows : the extreme. Type. S ad. (in alcohol). Lombok, July 1896. Collected by A. Everett, Esq. Brit. Mus. no. 97.4.18.13. Remarks. Placed side by side with Rh. a. himalayanus, this form is strikingly different; the horse-shoe is no less than | broader than the broadest in himalayanus, and the skull is distinguishable at a glance by its excessive width and the very broad nasal swellings. But it must be remembered that superans leads, not up to, but decidedly in the direction of, princeps, and we do not yet know the extreme limits of individual variation, either in superans or in princeps. When considering the geographical races* of Rh. affinis from a more general point of view-and excluding " typicus" owing to the peculiar geological history of Java, as well as nesites, owing to its having, probably, been influenced by somewhat exceptional conditions, far away on the small isolated N. Natunas,-the following rule will be observed : the more southern or south-eastern the habitat, the longer the ears, the broader the horse-shoe, the longer the tibia, the larger the skull, the broader the nasal swellings, and the longer the tooth-rows. 14. R h in o lo p h u s fe r r um - e q u in um Sclireb. (Plate IV. fisjs. 14, 15.) Diagnosis. Sella pandurate. p2 completely external or wanting. Ears more than 20 mm. Width of horse-shoe less than 10 mm. Forearm 52*8- 63 mm.t Details. The ferrum-eqxiinum type originated from a Bat in all * I am unacquainted with Dobson's Eh. andamanensis (J. A . S. B. xli. pt. ii. (1872) p. 337). The only specimen known is in the Calcutta Museum. It seems to be a local representative of the affinis type. ■{■ 1 he first and second characters, combined, are sufficient to distinguish fo'Tum-eqtiinutn from all Oriental species of this group. The others are added to prevent confusion with those Ethiopian species of the present group which also have the sella pandurate and p~ external or wanting (cfivosus, darlitigi, acrotis; augur and deckeni). |