DISTRIBUCIÓN GEOGRÁFICA Y HOSPEDEROS DE ANCYLOSTOMA PLURIDENTATUM (ALESSANDRINI, 1905) (NEMATODA, ANCYLOSTOMATIDAE) EN LAS AMÉRICAS

To date there were no reports of the history of Ancylostoma pluridentatum that was described in Italy, on the basis of Brazilian specimens in 1905. The only two further autochthonous references of the species occurred in 1910 and 2008, respectively, with no previous historical data during those 98 years in which the species was ignored in Brazil; in the present note, the occurrence of A. pluridentatum in the Americas is briefly accounted, on what concerns geographical distribution and hosts. In South America, A. pluridentatum is referred in the southeast (Atlantic Forest) and north (Amazon rain forest) regions of Brazil, in Argentina (Formosa Province) and in Colombia (Choco, Nariño); in Central America is cited in Panama (Achiote, Colon) and in North America in north, southern and south regions of Florida.Hasta el momento no hay registros de la historia de Ancylostoma pluridentatum que fue descripta en Italia con base en especimenes brasileños en 1905. Solo dos referencias autóctonas son disponibles, una de 1910 y otra de 2008, sin datos históricos durante los 98 años en que la especie ha sido ignorada en Brasil. En la presente nota la ocurrencia de A. pluridentatum en las Américas es compendiada con brevedad en lo que se refiere a su distribución geográfica y huéspedes. En América del Sur, A. pluridentatum es citada en las regiones Sudeste (Mata Atlántica) y Norte (Floresta Amazónica) de Brasil, en Argentina (provincia de Formosa) y en Colombia (Choco, Nariño); en América Central es referida en Panamá (Achiote, Colon) y en América del Norte en Norte, Sudeste y Sur de Florida

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

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

Remarks on Neoechinorhynchus Curemai Noronha, 1973 (Eoacanthocephala, Neoechinorhynchidae)

Data on the host and dimentions of hooks and eggs of N. curemai Noronha, 1973, are retified.<br>Dados sobre o hospedeiro de N. curemai Noronha, 1973, bem como medidas referentes ás dimensões de ganchos e ovos, são retificados

On Machadosentis travassosi n. g., n. sp. (Eoacanthocephala: Quadrigyridae) parasite of a moray Gymnothorax ocellatus in Brazil

Machadosentis travassosi n. g., n. sp. an acanthocephalan parasite of a moray are proposed after comparison with the related genera in Quadrigyridae VVan Cleave, 1920. The new genus differs from the other related by the arrangement of proboscis hooks (five circles of rows with five hooks each, with well developed roots) besides the distribution of cuticular spines

Procamallanus brasileiros (Nematoda, Camallanoidea): considerações finais, com chave para determinação das espécies Brazilian Procamallanus (Nematoda, Camallanoidea): final remarks on the subject, with a key to the species

Encerrando uma série de observações em nematódeos do gênero Procamallanus Baylis, 1923, que ocorrem no Brasil, reunimos no presente trabalho a descrição de uma nova espécie: Procamallanus (Spirocamallanus) paraensis, a redescrição de Procamallanus (S.) hilarii vaz & Pereira, 1934 e as descrições originais de Procamallanus (S.) barroslimai Pereira, 1935 e Procamallanus (S.) macaensis vicente & Santos, 1972, modificadas e adaptadas. Quanto a barroslimai, colocamos em dúvida sua validade e somente não a tomamos sinônima a Procamallanus (S.) inopinatus Travassos, Artigas & Pereira, 1928, devido à falta absoluta de material, impossibilidade de acesso ao tipo e dados concretos que justificassem tal procedimento, no que somos apoiados por Kloss (1966). Relacionamos amostras de material parcialmente danificado que não nos permitiu uma diagnose específica. Referências são feitas a Procamallanus (S.) iheringi Travassos, Artigas & Pereira, 1928. Para Procamallanus (S.) inopinatus é assinalado um novo hospedador. Como a maioria do material observado provinha de necrópsias realizadas em peixes dulcícolas caracídeos, fizemos um estudo comparativo entre os Procamallanus anteriormente referidos nesses hospedadores a fim de estabelecermos possíveis afinidades entre os caracteres morfológicos considerados distintivos quando da proposição das diversas espécies. Desta forma, pudemos ratificar as afirmações de Kloss (1966), com relação aos Procamallanus, quando do estudo dos parasitos de espécies simpátricas de Astyanax. Finalmente, incluímos uma chave para a determinação dos Procamallanus brasileiros.<br>With this work, we went through the Brazilian Procamallanus, all of them but one recovered from freshwater fishes. We describe Procamallanus (Spirocamallanus) paraensis n. sp., which is related to Procamallanus (S.) pexatus pinto, Fabio, Noronha & Rolas, 1976 and to Procamallanus (S.) inopinatus Travassos, Artigas & Pereira, 1928. Procamallanus (Spirocamallanus) hilarii Vaz & Pereira, 1934 is redescribed. The adapted and modified original descriptions of Procamallanus (Spirocamallanus) macaensis Vicente & Santos, 1972 and Procamallanus (Spirocamallanus) barroslimai Pereira, 1935 are included. The latter should be considered a synonym of P. (S.) inopinatus, but the lack of the type sample or fresh material and substantial data prevented us to do so. Therefore, its validity is rather doubtful as also suggested by Kloss (1966), and for this reason it was not included in the key to the species. All the Brazilian Procamallanus species recovered from characid fishes were discussed in order to let one knows what are the really valid ones up to now. We also list the unidentified damaged material which was put only under the genus, as well as the hosts' scientific and common names and their geographical distribution