1902.] NATURAL SCIENCES OF PHILADELPHIA. 241 



OBSERVATIONS UPON GALEOPITHECUS VOLANS. 

 BY HENRY C. CHAPMAN, M.D. 



Scattered through the works of Cuvier, Meckel, Oweu, Schre- 

 ber, Waguer, Huxley, and other anatomists, are to be found here 

 and there more or less brief notices upon the anatomy of Galeo- 

 pitheciis. So far, however, as known to the author, the only 

 account of this interesting animal approaching the character of a 

 monograph is the admirable work of Leche,^ which leaves* subse- 

 quent anatomists but little more to do than confirm, or at best 

 extend, his observations. 



The opportunity having been recently afforded the author of 

 acquiring a specimen of Galeojnthecus, it is hoped, in view of the 

 scant literature of the subject and the conflicting opinions still held 

 by zoologists as to the nature of this animal, that the results of its 

 dissection as well as some reflections upon its natural afliuities may 

 prove acceptable. 



The specimen, a male measuring 6.4 cent. (16 inches) from the 

 snout to the root of the ,tail, was obtained from Sarawak, in the 

 Baram district, Borneo. The specimen had been preserved in spirit 

 for a long time, but unfortunately Avas not in a sufiiciently good state 

 of preservation to admit of thorough dissection. It is hoped, how- 

 ever, that the disposition of the parts was sufficiently made out to 

 permit of comparison with the results obtained by Leche and other 

 anatomists. The author has also had the opportunity more recently 

 of examining the viscera of a male Galeojnthecus obtained in 

 Sumatra by the distinguished travelers, Mr, Alfred C. Harrison, 

 Jr. , and Dr. H. N. Hiller, and presented by them to the Academy, 

 which did not differ essentially, however, from those of the Borneo 

 specimen. 



Skeleton. 



As the skeleton of Galeopithecus has often been described, atten- 

 tion Avill be directed only to those peculiarities which serve to show its 



• Uebei' (lie Sdugeihierrjattniiff Galeopithecus, Kougliga Sveuska Vetens- 

 kaps-Akademiens Handlingar, 1884-1885. 



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