Primate surveys were conducted in isolated primary west Malagasy decidous f
orest blocks around Baly Bay, north-western Madagascar. :Eight species of p
rimate were found, including Microcebus c.f myoxinus, Hapalemur,griseus occ
identalis and Phaner furcifer. Two species were found only in Namoroka Stri
ct Nature Reserve, which may mean that other forest blocks in the area have
experienced primate extinctions. The record of M. c.f. myoxinus came from
mangrove, the first confirmed record of a lemur from this habitat. The pela
ge of female Eulemur fulvus rufus was atypical.