On some family related parasites (Nematoda, Cucullanidae) from the marine fish Paralonchurus brasiliensis (Steindachner, 1875) (Pisces, Ostraciidae)

Abstract

Dichelyne (Cucullanellus) elongatus (Tornquist, 1931) Petter, 1974 and Cucullanus pulcherrimus Barreto, 1918, from Paralonchurus brasiliensis (Steind., 1875) are redescribed and two specimens of Dichelyne (Cucullanellus) sp. are also reported in this host, despite lack of previously, was again identified in Brazil since its original description and posterior illustration. The present findings represent also a new host record for the referred genera: Dichelyne Jagerskiold, 1902 and Cucullanus Mueller, 1777. D. (C.) elongatus is also referred in Brazil for the first time

A new species ofCucullanus(Nematoda: Cucullanidae) parasite ofGenypterus blacodesandG. brasiliensis(Pisces: Ophidiidae) in the South West Atlantic

“…Other South American freshwater species reported by Petter (1995) differ from the species herein described either in not having a precloacal sucker, either in having lateral alae or different male body lengths and spicule lengths. In relation to the South American marine species, the new species differs from C. pulcherrimus, parasite of Perciformes (Barreto, 1922;Pinto et al, 1992), from C. dodsworthi, parasite of Tetraodontiformes (Barreto, 1922), from C. carioca, parasite of Perciformes (Vicente and Fernandes, 1973) and from C. rougetae, parasite of Perciformes (Vicente and Santos, 1974), in the smaller size of all the Brazilian species. Furthermore in C. pulcherrimus, C. dodsworthi and C. rougetae the papillae 4 are situated between papillae 6 and 7.…”

“…pinnai Travassos, Artigas andPereira, 1928 in pimelodid catfishes from Parana river. In marine fishes, five species have been reported from Brazil and French Guiana (Barreto, 1922;Vicente and Fernandes, 1973;Vicente and Santos, 1974;Petter, 1974 b;Pinto et al, 1992). The new species described above can be distinguished from the freshwater South American species as follows.…”

“…The genus Cucullanus Mueller, 1777 is also widely distributed; in South America, species of this genus have been reported mainly from freshwater fishes (Fortes and Hoffman, 1995;Petter, 1995). From marine fishes of the South West Atlantic Ocean, there are only four records of members of this genus, ail from Brazil: Cucullanuspulcherrimus Barreto, 1918, described from Caranx lugubris by Barreto (1922) and from Paralonchurus brasiliensis by Pinto et al (1992), C. dodsworthi Barreto, 1922, described from Sphoeroides testudineus by Barreto (1922), C. carioca Vicente and Fernandes, 1973, described from Pinguipes brasilianus by Vicente and Fernandes (1973) and C. rougetae Vicente and Santos, 1974, described from Plagioscion auratus by Vicente and Santos (1974), The aim of this paper is to describe a new species of the genus Cucullanus, a parasite of two species of kingclips: Genypterus blacodes Schneider, 1801 and G. brasiliensis Reagan, 1903 (Pisces: Ophidiidae) from the Argentinean Sea. The relationships between parasite and both host length and sex, and the geographical distribution pattern of these nematode species in the study area are described and discussed.…”

A new species of Dichelyne (Nematoda, Cucullanidae) parasitizing sciaenid fishes from off the South American Atlantic coast

“…These nematodes were firstly identified as Dichelyne (Cucullanellus) elongatus (Törnquist, 1931), a species commonly reported from M. furnieri in South American Atlantic waters (Vicente et al 1989;Pinto et al 1992;Sardella et al 1995;Pereira and Costa 1996;Alves and Luque 1999, 2000a, b, 2001Pereira et al 2002). However, other species of Dichelyne have so far been reported from M. furnieri from the same area; Pinto et al (1970) described D. (C.) rodriguesi (Pinto, Fábio et Noronha, 1970) and Pereira and Costa (1996) revalidated D. (C.) amaruincai (Freitas, Vicente et IbaZez, 1969) and described D. (Dichelyne) micropogonii Pereira et Costa, 1996 from the same sample of this host species.…”

“…from Río de Janeiro, Brazil (Pinto et al 1970). Dichelyne (C.) elongatus (Törnquist, 1931): CHIOC # 32,499 a-k and 32,356 from M. furnieri from Gulf of Venezuela (Vicente et al 1989); CHIOC # 32,700 a-b from Paralonchurus brasiliensis (Steindachner) from Rio de Janeiro, Brazil (Pinto et al 1992); CHIOC # 33,647 and # 33,648 from M. furnieri from Rio Grande do Sul, Brazil (Pereira and Costa 1996). Dichelyne (Dichelyne) micropogonii Pereira et Costa, 1996: CHIOC # 33,651, # 33,652, # 33, 653 a-b and # 33,654 from M. furnieri from Rio Grande do Sul, Brazil (Pereira and Costa 1996).…”