30 KM 11 ANMEHSKN 



De/ails. — III ilircc li/i. macro/is macrolis, tVom Nepal 

 (tyjK' locality) and Masui-i , the Im-adtli ot the horsesli(je is 

 7.0-8.0 mm., in the two Wi. m. dohrnl !) and '.)..') mm. The 

 eai's in the Sumatraii race are apparently somewhat broader than 

 in Himalayan specimens, but in the former specimens they are 

 in a bad state of preservation. The tibia in Wi. m. dolimi \\on\A 

 seem to be a little shorter. The skull is similar to that of Rli. 

 m. macroUs, but a trifle larger, as are also the teeth. 



I doubt that that there is in any respect more than an arerage 

 difference l)etween Himalayan and Sumatran individuals of Rh. 

 macrotis; I therefore keep the latter distinct as a local race ordy. 



I)(Mitition as in Rh. m. macrotis: }>.. in row (in a larger 

 series of skulls p.j will, no doubt, be found occasionally more or 

 less e.\ternal in ])osition); p^ in row, with a comparatively well 

 developed cus]), })ointing inwards; a narrow interspace between 

 p'"^ and p^ (reminiscent of p"*, lost in all recent species). 



Affinities. — The most conspicuous e.xternal peculiarities of 

 Rh. macroiis are these: — the long and broad, almo.st parallel- 

 margined (tongue-shaped) sella: the rather long and dense hairing 

 on the front face of the sella; tlie low connecting process, starting 

 from a point considerably below llu^ sununit of the sella; the long 

 and (-(mvex-margined lancet : the large ears. — Some of these 

 characters very strongly recall those of the primitive species of the 

 Rh. philip-pinensis group: the sella of macrotis might properly 

 l)e descriljed as that of a jihilippinensis dej)rived of its lateral 

 expansions; the shape of the connecting process and lancet, as 

 well as the enlargement ot the ears point also towards relationship 

 with philippinensis. — The skull is of the general sha})e cha- 

 racteristic ot the most primitive species of Rhinolophus ; the 

 palatal Ijridge rather longer than usual. The dentition is (juite 

 primitive: P3 often situated in the tooth- ro w . or, if external , it 

 lias a tendency towards ihe row, or there is, at least, a distinct 

 interspace between p., and p^, reminiscent of the former })osition 

 of )).. in the row: \r with a comparatively widl developed cusp 

 and always situat(Ml in ihe looth-row : the njiper canine and p' 

 widely separated. — In short: h'/i. marrotis is a 1ype on a low 

 level of evolution , which has no closi'r rehitive, among living 

 species, than the })rimitive forms of tiie R/i. philippinensis 

 group. 



