96 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 40. 



Measurements. — The external and cranial measurements of R. 

 vittatula are all smaller than the corresponding measurements of 

 R. vitlata. (See table below.) 



Specimens examined. — Seven, all from Pulo Sebuku. 



Measurements o/ratu/as. 



1 Collector's measurements. 2 Measured by writer after relaxing feet in water. 



3 Type. 



