Two New Species of the Genus Anisomysis (Crustacea: Mysidacea) from Northern Australia

Nine species and subspecies of Anisomysis have been recorded from Australian waters to date. These are A. bipartoculata, A. gracilis, A. hispida, A.incisa, A. laticauda, A. mixta australis, A. mullini, A. pelewensis and A. robustispina. The present two new species, therefore, are the tenth and eleventh species of Anisomysis, and their occurrence is the first record from Northern Territory waters. Anisomysis spatulispina n. sp. is distinguished from other species of the genus by the shape and armature of the telson. Anisomysis nana n. sp. is distinguished from allied species by having a rounded rostrum and the telson with a deep, U-shaped cleft.