Haliotrema minutospirale Yamaguti, 1968

Type host.

Parupeneus cyclostomus ( Lacépède) ( Mullidae).

Other host and localities.

Yamaguti (1968) recorded this species from gills of P. cyclostomus, P. pleurostigma (Bennett) and P. multifaciatus (Quoy and Gaimard) for Hawai’i . Palm and Bray (2014) also recorded this species from P. cyclostomus in the same locality (all Mullidae).

Current host.

Mulloidichthys flavolineatus ( Mullidae) (New host).

Site infection.

Gills.

Prevalence and mean intensity.

19,2 and 27 ± 18 (n=52).

Specimens deposited.

CHCM No. 539 (paratypes) (1 slide, 1 specimen), USNM No. 1459850 (voucher) (1 slide, 1 specimen)

Remarks.

The morphology of the copulatory complex is a relevant characteristic for its identification. Its MCO consists of an anterior, spiral, flanged portion and a posterior, cylindrical portion, enclosed in a sheath of circular muscular fibres. The presence of H. minutospirale on the gills Mulloidichthys flavolineatus from Palmyra Atoll represents both a new host and a new geographical record.