1905.] ON BATS OP THE GENUS RHINOLOPHTTS. 75 



3. On some Bats of the Grenus Rhinoloplms, with Remarks 

 Oil their Mutual Affinities, and Descriptions of Twentj^- 

 six new Forms. By Knud Andersen*. 



[Received May 12, 1905.] 



(Plates III. & IV.t and Text-figure 22.) 



The present paper is, chiefly, au attempt to disentangle some of 

 the more complicated groups of Eastern Rhinolophi, to make out 

 the probable interrelations of the species, aird to describe the 

 many new, imperfectly known, or hitherto confused forms. I 

 have appended some general remarks on the affinities of the 

 Ethiopian and Western Paheai'ctic species. 



The material placed at my disposal has been more extensive than 

 that of previous writers on these Bats, namely, Prof. Peters (1871) 

 and Dr. Dobson (1878) ; and I have approached the subject from a 

 difierent point of view, basing the diagnoses of the primary groups, 

 and, where possible, of the species and subspecies too, not on 

 external ancl dental charactei-s alone, but also on important 

 differences in the skulls. This may account, partly at least, for 

 the essentially difierent conclusions on many points at which I 

 have arrived. On the other hand, the following pages aflTord 

 ample proof that my material has not been complete enough to 

 enable me to venture an answer on all the difficult questions, 

 taxonomic or pliylogenetic, that occurred to me during my work. 

 1 shall feel satisfied if my paper is considered of some use as a 

 basis for further investigations. 



I owe my sincere thanks to Mr. Oldfield Thomas for entrusting 

 me with a revision of these Bats, for giving me unlimited access 

 to the recently acquired, still unregistered specimens in the British 

 Museum, especially those of the large and important " Tomes 

 Collection," and also for having favoured me with much valuable 

 information during the progress of my work. 



I also have to acknowledge the kind assistance of Mr. Gerrit 

 S. Miller, Jr., who sent me for inspection almost all the Indo- 

 Malayan Rhinolojihi preserved in the United States National 

 Museum, including many new and interesting forms, part of which 

 will be dealt with below. 



For the loan of specimens for comparison, or for information on 

 examples preserved in Continental Museums, I am indebted to 

 Geheimrath Prof. Dr. Ehlers, Gottingen ; Prof. Matschie, Berlin ; 

 Prof. Dr. Kurt Lampert, Stuttgart ; M. Ch. Mottaz, Geneva ; 

 M. A. Menegaux, Paris; and Pi'of. A. Cabrera Latorre, Madrid. 



I. The Rhinolophus simplex Group. 



Diagnosis. Basioccipital, between cochleae, not miusually nar- 

 rowed. Posterior connecting pi-ocess low and rounded ofi" (text- 

 fig. 22 rt, on p. 121). 



* Communicated by Oldfield Thomas, F.Z.S. 

 t For explanation of the Plates, see p. 145. 



