A new kinorhynch genus from the Antarctic deep sea and a new species of Cephalorhyncha from Hawaii (Kinorhyncha: Cyclorhagida: Echinoderidae)

Cephalorhyncha liticola sp. nov. was collected in the intertidal zone of a high energy beach on the northeast coast of Oahu, Hawaii. The species is characterized by the sternal plate of segment 2 being incompletely separated anteriorly by a midventral fissure. Middorsal spines are present on segments 4-8, ventrolateral spines on segment 2, lateroventral spines on segments 5-9, lateral accessory spines on segment 8, and laterodorsal spines on segment 10. In addition, there are special sensory spots with conspicuous marginal cuticular hairs on segments 1-3, and very long pectinate fringes on the sternal plates of segments 3-10. The partly subdivided sternal plates on segment 2 show the species to belong to the echinoderid genus Cephalorhyncha.