1906.] FROM JOHORE AND SIXGAPORE. 7 



identical in all respects with the types of vitiatus, and since this 

 is the case Mr. Miller's peninsularis cannot stand. 



It should always be remembered that among truly variable 

 species, of which there are not many, but of which S . Jlnlaysoni 

 is another good example, geogiaphical forms are very unlikely to 

 be found : for the fact that it is variable means (i) that natural 

 selection does not restrict it to a pai'ticular type ; (ii) that in 

 consequence it almost certainly does not breed true. So that, 

 although the majoi'ity of individuals in any one place may show 

 a tendency to a particular form of coloration, other varieties will 

 be so frequently appearing as to prevent the fixing of any particular 

 character. Now a true geographic race, to which forms alone 

 trinomials should be restricted, should be the only race found in 

 its type locality, intermediates being found only in the countiy 

 approaching that of another race. It is therefore evident that 

 >S'. vittatics is, as regards colour, a very variable species, and as 

 such it behoves all systematists to be extremely cautious befoi'e 

 naming any races thereof. 



It is only fair to add that the type of miniatus came from the 

 hills "at an altitude of about 1000 feet, and may represent 

 a hill form ; but at present there is no evidence of this, and such 

 evidence as there is, namely the dark and light under parts being 

 found on the same individual, tends to disprove it. 



SCIURUS XIGROVITTATUS BILIMITATUS Mill. 



Sciurus bilimitatus Mill. Smithsonian Misc. Coll. vol. xlv. p. 8 

 (1903). 



Sciurihs niqrovittatus Horsf., Bonh. Ann. & Mag. ISTat. Hist. 

 (7) vii. p. 452 (1901) ; id. Fasc. Malay., Zool. vol. i. p. 23 (1903). 



a. $ . Pelepak, Johore, 24th March, 1905. 



h, c. S • Kangka Aming, Johore, 26th May, 1905. 



d. 6 . Johore Bahru, 20th Feb., 1905. 



e. $ . „ „ 18th June, 1904. 



Mr. Miller has sej)arated the Peninsula and Javaix forms 

 chiefly on account of the almost entire absence of the light stripe 

 in the latter. I have been able to examine only one specimen 

 from Java, in which the stripe is certainly almost obliterated. 

 This is, however, by no means the case Avith the Sumatran form, 

 in Avhich the stripe is very well marked. 



FUNAMBULUS INSIGXIS PENINSUL.E Miller. 



Ftonambiihis j^^ninsidce Mill. Smithsonian Misc. Coll. vol. xlv. 

 p. 25 (1903). 



a, h. (S 2- Kangka Aming, Johore, 29th May, 1905. 



I have placed these examples under Mr. Miller's name, al- 

 though his description does not exactly agree w4th specimens 

 from the Peninsula, and it is probable that his single specimen 

 is hardly typical of the Malay form. I w^as, however, in error 



