THE FAMILIES CALLIANIDEIDAE AND THALASSINIDAE, WITH THE DESCRIPTION OF TWO NEW SUBFAMILIES, ONE NEW GENUS AND TWO NEW SPECIES

In the family Callianideidae, Thotnassinia, Crosniera, and Mictaxius defined as the Thomassiniinae, CaUianidea and Paracallianidea gen. nov. as the Callianideinae, Afjc/tefeo as the Michelelnae suborn, nov., and Meticonaxius, and Marcusiaxius as the Meticonaxiinae subfam. nov. are included. Paracallianidea gen. nov, is separated from CaUianidea, and Meticonaxius torbeni sp. nov. from the west coast of Malay Peninsula, and Marcusiaxius soelae sp. nov, from the Coral Sea, eastern Australia are described. Bristly setal rows on the carapace, abdominal pleura, and pereopods 2-4 are firstly noticed in Thalassinidae not as plumose setal rows in Callianideidae