INVESTIGADORES
VIOZZI gustavo Pedro
artículos
Título:
Two new species of Cryptocephalum n. gen. (Monogenoidea: Dactylogyridae) from the cephalic lateral line of Percichthys trucha (Perciformes: Percichthyidae) in Patagonia, Argentina
Autor/es:
VEGA, ROCÍO; VIOZZI, GUSTAVO; BRUGNI, NORMA
Revista:
JOURNAL OF PARASITOLOGY
Editorial:
AMER SOC PARASITOLOGISTS
Referencias:
Lugar: Lawrence, Kansas; Año: 2011 vol. 97 p. 245 - 250
ISSN:
0022-3395
Resumen:
Two new species of Monogenoidea were found parasitizing the cephalic lateral line canals ofPercichthys trucha (Valenciennes) (Perciformes: Percichthyidae). These species are described asmembers of a newly proposed genus of Dactylogyridae. Cryptocephalum n. gen., is haracterized by the site of infection and the combination of the next features: ventral and dorsal anchor/bar complexes, anchors with strongly elongated shaft and recurved point, shaft and point of dorsal anchors protruding laterally from haptor, hooks with 2 subunits and pair 5 smaller than the others; gonads overlapping; coiled male copulatory organ with counterclockwise rings, accessory piece formed by 2 distinct parts, and a tubular, sclerotized ventral vagina. Cryptocephalum petreum n. sp. is characterized by having both anchors pairs protruding laterally from haptor, male copulatory organ with a coil of 2 1/2 rings, accessory piece tweezers-shaped, and sclerotized vaginal vestibule. Cryptocephalum spiralis n. sp. has ventral anchors protruding ventrally and dorsal ones protruding laterally, male copulatory organ with a coil of 1 1/2 rings, the antero-dorsal part of the accessory piece saddle-shaped, vaginal vestibule not present and coiled vagina. This is the first record of Dactylogyridae species parasitizing the cephalic lateral line of fishes