Haliotrema longihamus Zhukov, 1976

Mendoza-Franco, Edgar F., Tun, Mariela del Carmen Rosado, Anchevida, Allan de Jesus Duarte & Rodriguez, Rodolfo E. del Rio, 2018, Morphological and molecular (28 S rRNA) data of monogeneans (Platyhelminthes) infecting the gill lamellae of marine fishes in the Campeche Bank, southwest Gulf of Mexico, ZooKeys 783, pp. 125-161 : 125

Haliotrema longihamus Zhukov, 1976

Haliotrema longihamus Zhukov, 1976: 35, fig. 2; Kritsky et al. 2009b: 42 (transferred to Haliotrematoides ).

Type host.

Lutjanus synagris

Present study.

L. synagris

Locality/prevalence, mean abundance and intensity range.

San Francisco: 15 fish (mean TL 28.2 cm; range 20-35.7) infected of 70 examined (21.4 %); abundance, 3; intensity of infection, 2-14 worms. Seyba Playa: 9 fish (TL 28.4; 19.2-30.5) infected of 79 examined (11.4 %); abundance, 1; intensity of infection, 2-6. Champoton: 2 fish (TL 28.2; 24.7-30.5) infected of 75 examined (2.6 %); abundance, 0.04; intensity of infection, 1-2.

Supplementary observations

(measurements based on ten specimens). Body 475 (390-560; 9) long; greatest width 84 (70-93; 5). Haptor 66 (58-72; 8) wide. Pharynx 25 (24- 30; 7) wide. MCO 48 (40-53; 11) long. Ventral anchor 75 (71-78; 17) long; dorsal anchor 77 (74-80; 17) long. Ventral bar 38 (37-40; 3) long; dorsal bar 39 (37-44; 4) long. Hook 12 (11-12; 10) long.

Comments.

Haliotrema longihamus Zhukov, 1976 was transferred to Haliotrematoides by Kritsky et al. (2009) based on the original figures of the anchor/bar complex and MCO of this species [see Zhukov (1976: fig. 2) and Bosques Rodríguez (2004: fig. 30)]. Haliotrematoides longihamus is characterized by having a longer and convoluted shaft of its MCO and inner blades on the distal portions of the ventral, and dorsal anchor shafts. Currently, H. longihamus has been reported on L. synagris , L. mahogoni , L. analis , and L. griseus from Bay of Campeche (Area Havana) and Puerto Rico ( Zhukov 1976, Bosques Rodríguez 2004, Kritsky et al. 2009). Recently, Montoya-Mendoza et al. (2016) reported E. longihamus (voucher CNHE 10219), from L. synagris from Santiaguillo Reef, Veracruz (Gulf of Mexico). Examination of that voucher allowed us to confirm the species identity.

Specimens deposited.

Ten reference specimens in the CNHE (10599).