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Zoolog. Soc. March 11 /68/ Much struck at the oddness & distinctness of the colours of various Antelopes. Thus the white-faced antelope (Damalis albifrons?) has curious square white face — An Indian antelope has dark back with stripe of dark colour A. cervicapra running down front legs — The Gnu (one species) has zebra like strips on side of neck— good if I make out case that antelopes are sexually coloured.

Portax picta, the male is far darker than female & though both sexes have various marks in common, the square white patch on throat, 2 black spots on ears, & white marks on fetlocks &c far more conspicuously

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distinct than in female. A male stripe ridge of hair runs along spine & great length of black hair on throat under square white patch — This difference led, if we may trust the birds, study the belief that colours secondary sexual.

[in margin:] ♂