no. 1809. MAMMALS FROM BORNEO AND VICINITY— LYON. 109 



so much in shape and size with increasing age and present so many 

 apparent individual variations that not very much reliance can be 

 placed upon them as determining species. 



EPIMYS SATURATUS, new species. 



Type. — Skin and skull of adult male, Cat. No. 145523, collected 

 on Pulo Panebangan, off west coast of Borneo, May 17, 1907, by 

 Dr. W. L. Abbott. Original number, 5236. 



Diagnostic characters. — A medium sized member of the Epimys 

 rajah-surifer group of rats, distinguished by its dark orange-buff and 

 blackish coloration. 



Golor. — Type: Upper parts of head, neck, and body a mixture of 

 orange-buff, rather darker than Ridgway's, and blackish, the latter 

 color in excess along the back; sides of head, neck, and nearly all of 

 legs nearly clear orange-buff, only sparingly mixed with blackish; 

 under parts whitish to cream color, extending part way down inner 

 side of legs; an orange-buff collar, 10 to 15 mm. wide, between throat 

 and chest; feet whitish; ears blackish; tail dark above, cream color 

 below. 



Skull and teeth. — The skull and teeth of Epimys saturatus do not 

 appear to differ from those of the related Epimys rajah and E. 

 carimatse. 



Measurements. — See table, page 111. 



Specimens examined. — Twenty-three, six skins with skulls and 

 seventeen skulls with no skins, all from Pulo Panebangan. 



Remarks. — Epimys saturatus is one of the darkest and richest 

 colored members of the E. rajah group. Other species are as dark, 

 such as the near-by Epimys serutus from Pulo Serutu of the Karimata 

 Islands, but the darker color is produced b}' an increase in the 

 blackish elements, while in E. saturatus the lighter colors are deepened. 



EPIMYS UBECUS, new species. 



Type. — Skin and skull of adult male, Cat. No. 151931, collected 

 on Pulo Sebuku, off southeast coast of Borneo, January 3, 1908, by 

 Dr. W. L. Abbott. Original number, 5727. 



Diagnostic characters. — A member of the Epimys rajah group, 

 generally resembling rajah, but distinctly smaller. 



Color. — Type: Upper parts of head, neck, and body a mixture of 

 dark brownish and ochraceous buff, the darker color more prominent 

 in the middle area of the back; sides of head, neck, and body, and 

 outer sides of legs, ochraceous buff, nearly clear but slightly mixed 

 with brownish; under parts and inner sides of legs whitish to cream 

 color, the light color not interrupted at the throat by a darker collar; 

 feet whitish; tail dark above, whitish beneath and at the extremity. 



