A new species of Pycnogonum (Arthropoda : Pycnogonida : Pycnogonidae) from Hong Kong

摘要

A new species of pycnogonid, of the genus Pycnogonum, is described from the sandy- mud benthos at 17m depth in a submarine cave off eastern Hong Kong. It belongs to a limited group of small species which have no auxiliary claws, a barrel-shaped proboscis and a male oviger of seven articles. It is distinct in the disposition of dorsal trunk tubercles: only trunk segment three has a midline tubercle, while lateral process tubercles are present only on the third and fourth segments.