Haliotrema striatohamus Zhukov, 1981

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 striatohamus Zhukov, 1981

Haliotrema striatohamus Zhukov, 1981: 179, fig. 1; Mendoza-Franco et al. 2009: 1360-1362, figs 1-8 (redescribed and transferred to Haliotrematoides ).

Type host.

Haemulon aurolineatum Cuvier, 1830

Present study.

H. plumieri

Locality/prevalence, mean abundance and intensity range.

San Francisco: 80 fish (mean TL 28.8 cm; range 22-34) infected of 90 examined (88.8 %); abundance, 20; intensity of infection, 4-41 worms. Seyba Playa: 88 fish (TL 28.9; 21.5-31.3) infected of 90 examined (97.7%); abundance 136; intensity of infection, 30-417. Champoton: 90 fish (TL 28.8; 19.3-33.3) infected of 90 examined (100 %); abundance, 91; intensity of infection, 36-166.

Supplementary observations

(measurements based on twelve specimens). Body 378 (312-450; 12) long; greatest width 78 (62-95; 8). Haptor 68 (55-75; 11) wide. Pharynx 18 (17-20; 5) wide. Copulatory complex 44 (40-55; 9) long. MCO base 20 (20-22; 4) long. Ventral anchor 40 (35-43; 10) long; dorsal anchor 45 (39-47; 12) long. Ventral bar 35 (33-38; 7) long; dorsal bar 42 (40-48; 7) long. Testis 50 (45-55; 3) long, 33 (30-35; 3) wide.

Comments.

Haliotrema striatohamus Zhukov, 1981 was redescribed and transferred to Haliotrematoides Kritsky, Yang & Sun, 2009 by Mendoza-Franco et al. (2009) as Hal. striatohamus based on specimens collected from the haemulids, H. aurolineatum , H. plumieri , and Haemulon sciurus (Shaw, 1803) from the southern coast of Quintana Roo, Mexico. This species is characterized in part, in having two accessory sclerites [4 (4-5; 6) long], at the tip of the superficial root of each the ventral anchor.

Molecular data.

In the present study, partial molecular sequences (726-746 bp) of the 28S rRNA gene (D1-D3) of Hal. striatohamus are provided for the first time. These sequences shows that Hal. striatohamus collected from Campeche is a sister species of the clade containing Hal. guttati and Haliotrematoides spinatus Kritsky & Mendoza-Franco, 2009 (see Figure 1) from L. guttatus off Taboga Island (type locality) and Perlas Archipielago in Pacific waters of Panama ( Kritsky et al. 2009b).

Specimens deposited.

Twelve reference specimens (CNHE 10612).

Two slides, each containing a haptor of a specimen of Hal. striatohamus used to amplify its DNA are deposited in the CNHE (10623).

Representative DNA sequence.

GenBank accession number MG586869, MG586870.