Haliotrema paracanthi 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 paracanthi Zhukov, 1976

Haliotrema paracanthi Zhukov, 1976: 42-43, fig. 9; Kritsky and Boeger 2002: 32 (transferred to Euryhaliotrema ); Kritsky 2012: 239-240, figs 18-23 (redescribed).

Type host.

Lutjanus apodus

Present study.

L. griseus

Locality/prevalence, mean abundance and intensity range.

San Francisco: 6 fish (mean TL 28.1cm; range 21.6-39) infected of 65 examined (9 %); abundance, 0.09; intensity of infection, 1 worm. Seyba Playa: 2 fish (TL 28.5; 23-37) infected of 45 examined (4 %); abundance, 0.06; intensity of infection, 1-2; Champoton: 1 fish (TL 28.3; 25.2-37) infected of 37 examined (2.7 %); abundance, 0.02; intensity of infection, 1.

Supplementary observations

(measurements based on seven specimens). Body 348 (295-445; 6) long; greatest width 70 (70-92; 3). Haptor 71 (62-82; 4) wide. MCO 28 (25-34; 8) long. Proximal ring of the MCO 17 (13-20; 7) diameter. Ventral anchor 24 (23-25; n = 12) long; dorsal anchor 24 (24-25; n = 11) long. Ventral bar 31 (27-38; 7) long; dorsal bar 23 (23-24; 4) long. Hook 13 (12-14; 8) long.

Comments.

This species was originally described as Haliotrema paracanthi by Zhukov (1976) from L. apodus from the Area Havana (off Cuba) and later transferred to Euryhaliotrema by Kritsky and Boeger (2002) based on the drawings presented in the original description of Zhukov (1976). Subsequently, Kritsky (2012) redescribed E. paracanthi based on specimens collected from L. jocu and other lutjanids ( L. argentiventris and L. griseus ) from Florida and off Taboga Island, and Perlas Archipielago (both from Panama). Euryhaliotrema paracanthi is differentiated from other species of Euryhaliotrema infecting lutjanids by possessing a subterminal spine or hook on the accessory piece. The morphometrics of the present specimens did not differ from those reported in the redescription of E. paracanthi .

Specimens deposited.

Seven reference specimens in the CNHE (10613).