Abstract
Tetrameres (Tetrameres) tarapungae n.sp. is described from specimens from the proventriculus of juvenile red-billed gulls from Kaikoura, New Zealand. The male is characterised by having two short rows of lateral cervical cuticular spines that do not extend beyond the middle of the oesophagus, a body length of 2.2–2.6 mm, and the larger spicule longer than half the body length. The male tail bears four pairs of subventral papillae and two pairs of lateral papillae. The pathology of the infections is described briefly.