Euryhaliotrema grandis (Mizelle & Kritsky, 1969) Kritsky, 2012

Vidal-Martinez, Victor Manuel, Soler-Jimenez, Lilia Catherinne, Aguirre-Macedo, Ma. Leopoldina, Mclaughlin, John, Jaramillo, Alejandra G., Shaw 2, Jenny C., James, Anna, Hechinger, Ryan F., Kuris, Armand M. & Lafferty, Kevin D., 2017, Monogenea of fishes from the lagoon flats of Palmyra Atoll in the Central Pacific, ZooKeys 713, pp. 1-23 : 5-6

Euryhaliotrema grandis (Mizelle & Kritsky, 1969) Kritsky, 2012

Type host.

Chaetodon auriga ( Chaetodontidae )

Other host and localities.

Gills of several species of Chaetodontidae . Chaetodon auriga and C. lunula in Hawai’i (as Parahaliotrema grandis ) ( Mizelle and Kritsky 1969); Chaetodon chrysurus (= C. paucifasciatus ) Ahl in the Red Sea (as Haliotrema grandis ) ( Paperna 1972). Plaisance and Kritsky (2004) recorded E. grandis on gills of Chaetodon auriga and Chaetodon citrinellus Cuvier from the coral reefs of Micronesia, French Polynesia, Wallis, Australia and New Caledonia; Chaetodon ephippium Cuvier from Wallis and Lizard Island, Australia; Chaetodon kleinii Bloch from off Wallis, Australia and Micronesia; Chaetodon lineolatus Cuvier from off Heron Island, Australia; C. lunula from off French Polynesia, Wallis and Micronesia; Chaetodon ornatissimus Cuvier from French Polynesia and Wallis; Chaetodon trifasciatus Park from Wallis; C. vagabundus from the coral reefs of Micronesia, French Polynesia, Wallis, Australia and New Caledonia; and Heniochus chrysostomus Cuvier from off Moorea, French Polynesia. Only one chaetodontid host was found parasitised at Palmyra Atoll.

Current host.

Chaetodon auriga and Chaetodon lunula .

Site infection.

Gills.

Prevalence and mean intensity.

Chaetodon auriga 30.8 and 17 ± 19 (n = 13).

and Chaetodon lunula 35.7 and 28 ± 19 (n = 14).

Specimens deposited.

CHCM No. 544 (paratypes) (1 slide, 1 specimen), USNM No. 1459843 (voucher) (1 slide, 2 specimen).

Remarks.

Euryhaliotrema grandis was described by Mizelle and Kritsky (1969) as Parahaliotrema grandis and subsequently transferred to Haliotrema by Paperna (1972) as Haliotrema grandis . Plaisance and Kritsky (2004) erected the genus Euryhaliotrematoides and transferred several species of Haliotrema to this genus, including Euryhaliotrematoides grandis . Recently, Kritsky (2012) proposed the synonymy of Euryhaliotrematoides with Euryhaliotrema . As a consequence, Euryhaliotrematoides grandis was transferred to Euryhaliotrema as Euryhaliotrema grandis . Euryhaliotrema grandis presents a delicate MCO, comprising approximately two rings. Accessory piece variable, serving as a guide for the distal portion of the MCO and is articulated to the base of MCO. Anchors lacking hinged bases. Ventral anchor with flattened base supporting a short deep root, moderately long superficial root, short shaft and point extending to the level of the tip of the superficial root. Dorsal anchor with a short deep root, elongate superficial root, broad base, short shaft, point extending to the level of the superficial root. Ventral bar V-shaped, with an anteromedial concavity having a straight anterior margin and a posterior rounded expansion. Dorsal bar, rod shaped, straight. New geographical record for Palmyra Atoll.