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Show 1906.] FROM JOHORE AND SINGAPORE. 7 identical in all respects with the types of vittatus, and since 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.finlaysoni is another good example, geographical 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 particular type; (ii) that in consequence it almost certainly does not breed true. So that, although the majority 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. N o w 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 country approaching that of another race. It is therefore evident that S. vittatus is, as regards colour, a very variable species, and as such it behoves all systematists to be extremely cautious before naming any races thereof. It is only fair to acid 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 NIGROVITTATUS BILIMITATUS Mill. Sciurus bilimitatus Mill. Smithsonian Misc. Coll. vol. xlv. p. 8 (1903). Sciurus nigrovittatus Horsf., Bonh. Ann. & Mag. Nat. Hist. (7) vii. p. 452 (1901); id. Fasc. Malay., Zool. vol. i. p. 23 (1903). a. 2 • Pelepak, Johore, 24th March, 1905. 6, c. $. Kangka Aming, Johore, 26th May, 1905. d. 6 • Johore Bahru, 20th Feb., 1905. e. 2 • » » 18th J u n e> 1904- Mr. Miller has separated the Peninsula and Javan 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 with the Sumatran form, in which the stripe is very well marked. FUNAMBULUS INSIGNIS PENINSULA Miller. Funambidus p>eninsidce Mill. Smithsonian Misc. Coll. vol. xlv. p. 25 (1903). a, b. 3 2 • Kangka Aming, Johore, 29th May, 1905. I have placed these examples under Mr. Miller's name, although his description does not exactly agree with specimens from"the Peninsula, and it is probable that his single specimen is hardly typical of the Malay form. I wTas, however, in error |