Pontoniine shrimps (Decapoda: Caridea: Palaemonidae) inhabiting boring sponges (Porifera: Demospongia) from Nhatrang Bay, Vietnam, with description of three new species

Some further investigations on symbiotic fauna of shallow-water boring demosponges in Nhatrang Bay, Vietnam are given. Three species of pontoniine shrimps are described as new: Onycocaridella antokha spec. nov., Periclimenaeus pachyspinosus spec. nov., and Poripontonia cornuta spec. nov. Four species, Apopontonia falcirostris Bruce, 1976, Onycocaris amasukensis Fujino & Miyake, 1969, Periclimenaeus djiboutensis Bruce, 1970 and Periclimenaeus rastrifer Bruce, 1980, are recorded from Vietnam for the first time.