('llIR()l'Ti:i;.\\ NOTKS 31 



l\1i. r/iacrot/s was liitlicHo only known from llic Himalayas 

 ( Masui'i. Nepal). It is therefore of much interest now to see llie 

 ran^-e of this species extended to Sumatra. After this th(n-e can, 

 of course, be no doubt that it will also be found in Indo China 

 and the Malay Peninsula. 



A second s})ecies of the macrolis type, Hh. htrsutus, K. And., 

 (littering by its still larger ears, loiig(n' tail, and slightly heavier 

 skull, inhabits the Pliilippine Islands. 



At a })eriod when the passage for Mammals from Soutlu'rn 

 Asia to Africa, owing to different physiographic conditions, was 

 much easier than now, the Rh. macrotis type spread into 1iie 

 Etliiopian region. There it is now^ represented by four species : 

 Rh. aethiops , fumigatus, I tilde brandii , eloquens (see l)elow. 

 mider /?//. fumigatus). Thus the whole area inhal)ite(l by this 

 type of bat extends from the Philippines and Sumatra in the east, 

 1o Angola and Senegambia in the w^est. 



Note on the Rhinolo^hi of Sumatra. — In December 1!)0.'). 

 when writing a geographical review of the species and subspecies 

 of Rliinoloplius (/), the following forins were known to me 

 from Sumatra: Rh. affinis superans , Rli. sumatranus , R/i. 

 trifoliatus frifoliatus. Dr. Dohrn's collections have added thre(> 

 species to this list, viz. Rh. stheno, Rh. refulgens, and Rli. 

 macrotis dohrni. Of tlie six forms now on record from Sumatra, 

 four [Rh. siheno, Rh. affinis superans, Rh. refulgens, Rh. 

 trifoliatus trifoliatus) are common to this island and the Malay 

 Peninsula; a fifth species [Rh. macrotis), as being known from 

 the Himalayas and Sumatra, will no douljt also be found in the 

 Malay Peninsula; the sixth (Rh. sumatranus) is as yet only 

 recorded from Sumatra, Ijut may, not improbal)ly, also oci-ur on 

 the adjacent continent. All this is evidence of the extremely close 

 connection between the Rhinolophus fauna of Sumatra and that 

 of the Malay Peninsula. , • 



The Rhinolojjhi inhaljiting the cliain of islands running \)n- 

 ralhd to the south coast of Sumatra are still very imperfectly 

 known; but so far as the evidence goes they seem to be more 

 peculiar. Of the two forms I have examined from Nias, the one 

 {Rh. circe) is allied to R/i. sumatranus, but apparently sutli- 



(') Ann. S; Mag. X. H. (7) XVI. p. G5() (1 Dec. 1905). 



