In this work, some of the feature measurements of gyrodactylids species are similar in size to those reported by (Garcia-Vasquez et al., 2007; Mousavi et al., 2013) but differ in having a smaller haptor
, total length marginal hook and total length dorsal bar.
bilobed, 138 (132-140, n=10) long, 97 (94-99, n=10) wide.
Uniciliated, non-ciliated and various other types of presumed sensory receptors have been described on the body surface and haptor
of monogeneans and other Platyhelminthes [19,23,33,34].
Para la identificacion de monogeneos se observaron las estructuras esclerotizadas del haptor
y del complejo copulatorio y se utilizo la clave para monogeneos neotropicales de aguas dulces descrita por Thatcher (1991).
Peduncle short; haptor
Peduncle broad and short; Haptor
subhexagonal, 61 (39-74; n = 9) long, 85 (71-108; n = 9) wide.
La denominacion y la numeracion de las piezas escleroticas del haptor
estan definidas por Euzet & Prost, 1981, con modificaciones de Pariselle & Euzet (1995) para los ganchos dorsales y ventrales.
Light microscopy revealed that the haptor
of adult D.
1.3 mm-2.2 (1.6 mm) in diameter, with peripheral papilliform ornamentation, pedunculated, concave; with 17 septa, two of them bifid, and other two incomplete; two central loculi of unequal size.
(86) M cirrus spinose (87) M cirrus ovate (88) M single egg filament (89) La no anchors on oncomiracidium (90) La 16 marginal hooks on oncomiracidium (91) La haptor
disk-shaped (92) N 16 marginal hooks in adult (93) N dactylogyrid hook shape (94) N anchors present in at least one stage of development
It can move quickly, feed on epithelial cells and has a haptor
that forms a single fixing unit.
Perforated gill filaments were observed as a result of haptor
attachment and epithelial perforation and dislodged tissue (Figure 3A) and loss of linear structure of the gill lamellae (Figure 3B).