Cutler, Edward B.; Schulze, Anja; Dean, Harlan K. (2004). The Sipuncula of sublittoral New Zealand, with a key to all New Zealand species. Zootaxa. 525(1): 1-19.
Fourteen species of the unsegmented marine worms known as Sipuncula are reported from sublittoral waters from recent collections of 519 specimens around New Zealand. Five are new to the New Zealand Exclusive Economic Zone (EEZ). A taxonomic key to all 26 known New Zealand species is provided. All six families and nine of the 17 genera of Sipuncula are represented.