Four facultative marine fungi (Aspergillus nidulans, A. versicolor, Paecilomyces variotii and Pencillium citrinum), isolated from Bhavnagar coast were examined for cellulase production using four different media. All the test isolates produced exoglucanase, endoglucanase and bglucosidase and showed complete cellulase activity in all the four media. Mandels & Sterberg medium supported highest enzyme production and the least preferred media for enzyme production were Park's and Zobell.