J 68 GYMNURA CANDIDA. 



The whole upper molar series of ' the Borneo-specimen 

 measures 27 ra.m. , while those parts in the Sumatra- 

 specimen measure 23 m.m, , and in the lower jaw re- 

 spectively 28 m.m and 24 m.m. In the upper jaw of 

 the Sumatra-skull the second and third incisors are 

 crowded together , buth in the Borneo-skull they show a 

 small interval. For the rest the form of the teeth is the 

 same in both skulls. 



There are still more points in which the very parts of 

 the skulls and skeletons differ , for instance the shoulder- 

 blades and pelvis-bones, but as easily as such differences 

 are to be seen by direct comparison as difficult it is to explain 

 them without exact figures and large and extensive des- 

 criptions. Moreover I believe that what I have said , will 

 suffice to convince Naturalists that the Borneo form is a 

 good and distinct species. I propose to call this species 

 ''Candida \ a name given by Dr. Günther, vide antea 1. c. 



Externally I find the following characters; Gymnura 

 Candida is pure white , there are only a few hairs on the 

 back which have black tips ; generally the hairs are shorter 

 and scarcer; the head is more elongate and the whole 

 habitus is stouter. 



I do not doubt that more characters are to be found 

 if fresh specimens are examined and compared. 



JSoteti Irom the Ley den M-useurn, Vol. III. 



