92 Messrs. H. C. E-obin<?on and C. Boden Kloss on 



Spccmens examined. — Eight from the type-locality, two 

 taken in March and six in May. 



Heniarks. — This is a depanpcrated form of S.f.griseimanus 

 (]\r.-Ed\v.), inliabiting the sterile coastal phiin of Phanrang. 

 Its range inland is limited by the forested hills, 10-20 miles 

 to the west, where S.f. (iriseimanus occurs. 



For measurements see table on p. 93. 



9. Tamiops macclellandi laotum, subsp. n. 



Outer pale stripes interrupted on the shoulders, only the 

 median stripe black, under parts cream-colour. 



Above a fine grizzle of black and buify, tiie general colour 

 effect being brownish grey. A median dark stripe com- 

 mencing behind the shoulders, bordered by greyish-buffy 

 stripes more buffy than the head, these in turn bordered 

 externally by ferruginous stripes speckled with black deeper 

 than the head ; below these come buff stripes, followed below 

 by stripes the same colour as above. A buff stripe from 

 tiie muzzle along the sides of the neck. Hind feet buffy, 

 more so than the fore feet. Hairs of ears with white tips 

 and black bases. 



Below creamy, the hairs with grey bases. Tail annulated 

 black and ochraccous, the hair tipped with pale buff. 



The series varies : the most north-easterly examples are 

 darkest and have the dark dorsal stripes most intense — 

 in one instance the outer pair being almost black; the 

 southernmost specimens are palish and most buffy, one 

 especially (No. 7238/S from Ban Houei Huo Chang) 

 practically lacking any rufous suffusion above. 



Type. — Adult male (skin and skull) obtained at Pak Hin 

 Bun, Laos, on the Mekong (iat. 17° 35' N.) on 2nd March, 

 1920, by H. C. Robinson and C. Boden Kloss's collector. 

 No. 7235/S. 



Specimens e.ramined. — The type : ten specimens from be- 

 tween Pak Hin Bun and Ban Na Sao, 40 miles to the 

 north-east ; and four from between Pak Hin Bun and 

 Savanaket, 60 miles down river, from the Laos bank or 

 islands in mid-stream. 



For measurements see table on p. 93. 



10. Tamiops macclellandi moi, subsp. n. 



Like T. m. lao, but darker above ; upper parts more 

 suffused with ferrugiuous, so that, in addition to being more 



