Rhinoxenus bulbovaginatus Boeger, Domingues & Pavanelli, 1995

Domingues, Marcus V. & Boeger, Walter A., 2005, Neotropical Monogenoidea. 47. Phylogeny and coevolution of species of Rhinoxenus (Platyhelminthes, Monogenoidea, Dactylogyridae) and their Characiformes hosts (Teleostei, Ostariophysi) with description of four new species, Zoosystema 27 (3), pp. 441-467 : 451

Rhinoxenus bulbovaginatus Boeger, Domingues & Pavanelli, 1995

Rhinoxenus bulbovaginatus Boeger, Domingues & Pavanelli, 1995: 696-698 , figs 1-8.

HOST AND LOCALITY. — Nasal cavities of Salminus brasiliensis (Characidae) , Rio Paraná, near Porto Rico, Paraná, Brazil.

MATERIAL EXAMINED. — Brazil. Rio Miranda, Passo do Lontra, Mato Grosso do Sul, from Salminus brasiliensis (Characidae) , 5.VIII.1998, voucher specimens ( INPA 421 a-c; MNHN 155 HG-T 1 197-197 bis-198; MZUSP 5934 a-b; USNPC 95223).

MEASUREMENTS. — Copulatory organ ring diameter 27 (21-37; n = 5); ventral anchor 121 (117-122; n = 5) long, 32 (30-32; n = 5) wide; dorsal anchor 129 (125- 132; n = 5) long; 5 (n = 5) wide; ventral bar 64 (60-67; n = 5) long; 12 (n = 5) wide; hook pair 1 37 (36-38; n = 2); hook pair 2 33 (30-35; n = 4); hook pair 3 48; hook pair 4 52; hook pair 5 45; hook pair 6 51; hook pair 7 49 (47-52; n = 3).

REMARKS

Rhinoxenus bulbovaginatus is characterized by possessing the point of the ventral anchor in the shape of a “fish-hook”; posterolateral expansions in the ventral bar for articulation to the ventral anchor; and vagina sclerotized with cup-shape vestibule.