Introduction The mud crab (Scylla spp.) is an important fisheries commodity in Indo-Pacific countries In the Philippines, mud crab culture is an important source of income among small-scale fishermen in coastal communities (Millamena, 1999). Until recently only one species in the genus Scylla was recognized namely Scylla serrata. In 1998, Clive P. Keenan and his team clearly showed using morphological, DNA and alloenzyme data that there are 4 different species of Scylla (Ng, 1999). Different Species Of Mud Crab Scylla tranquebarica (Purple Mud Crab)

Scylla serrata (Giant mud crab)

Scylla olivacea (Orange mud crab)

Scylla paramamosain (Green Mud Crab)

CLASSIFICATION

Phylum : Arthropoda Class : Crustacea Sub class : Malacostraca Series : Eumalacostraca Super Order : Eucarida Order : Decapoda Infraorder : Brachyura Family : Portunidae Genus : Scylla Species : olivacea Authority : Herbst Year : 1796