New species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 (Monogenea: Dactylogyridae: Ancyrocephalinae) from the gills of Prochilodus lineatus (Osteichthyes: Prochilodontidae) from the upper Paraná River floodplain, Brazil.
Two new species of Tereancistrum Kritsky, Thatcher & Kayton, 1980 are described from the gills of Prochilodus lineatus (Prochilodontidae) collected from the upper Paraná River floodplain, Brazil. T. toksonum n. sp. is characterised by a slim ventral bar with a sclerotised membrane along the anterior margin. Another characteristic is the dorsal anchor with an elongated deep root. T. curimba n. sp. is similar to T. ornatus Kritsky, Thatcher & Kayton, 1980 but possesses a sclerotised structure between the accessory sclerites of the ventral anchors. Moreover, the accessory anchor sclerites of this new species are longer than those described for T. ornatus.
Lizama
Maria de los Angeles P
Mde L
State University of Maringá - Postgraduate Course in Ecology of Continental Aquatic Environments (PEA), Bloco G-90, Av. Colombo, 5790, 87020-900, Maringá, PR, Brazil.
Takemoto
Ricardo M
RM
Pavanelli
Gilberto C
GC
D000818:Animals; D001938:Brazil; D005260:Female; D005399:Fishes / Q000469:parasitology*; D005880:Gills / Q000469:parasitology; D008297:Male; D014200:Trematoda / Q000033:anatomy & histology*