e-course Materials for all Courses This blog is to help the Bachelor of fisheries graduates to make use of ICAR e-course materials on the go. The entire material was taken from ICAR e-courses website . FS 209-Anatomy and Biology of Shellfish 2(1+1) (ICAR e-course material) PART I-Anatomy ARTHROPODA 12.1. General characters of Arthropoda · Arthropods are triploblastic, bilaterally symmetrical, metabolically segmented animals. · Body is covered with a thick chitinous cuticle forming an exoskeleton. · Body segments usually bear paired lateral and jointed appendages. · Musculature is not continuous but comprises separate 'striped muscles. · Body cavity is haemocoel. The true coelom is reduced to the spaces ...