Revisão do gênero Ophidascaris Baylis, 1921 (Nematoda, Ascaridoidea)

Freitas, J. F. Teixeira de

doi:10.1590/s0074-02761968000100001

Cited by 16 publications

(20 citation statements)

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“…The revision of Freitas (1968) tended to emphasise these features and the number of species was increased to 32. In the present revision many features previously regarded as significant are considered to be within the limits of intraspecific morphological variation.…”

Section: Jfa Sprent 167mentioning

confidence: 99%

Ascaridoid nematodes of amphibians and reptiles: Ophidascaris Baylis, 1920

Sprent

1988

Syst Parasitol

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The genus Ophidascaris is revised and divided into five groups of species. A key for the species groups is provided. Group 1 (' filaria' group) occurs in pythons and a key is provided for differentiating eight species based on fresh and preserved specimens and on developmental patterns. 0. papillifera (Linstow, 1898) is redescribed from the type-specimens and is considered to be close or identical to 0. niuginiensis, for which Candoia carinatus is recorded as a new host. A key for the differentiation of species in Groups 2 to 5 is based on preserved specimens only. Group 2 (' obconica' group) contains (i) 0. obconica and 0. trichuriformis [ = caballeroi] in South American colubrids (further investigation will probably show that 0. trichuriformis is a synonym of 0. obconica); new host records are Xenodon severus, X. neuwiedii, X. colubrinus, Leptodeira annulata, Thamnodynastes pallidus, Leimadophis poecilogyrus and Boa constrictor; (ii)O. ashi n. sp. (new species name for ' 0. labiatopapillosa' ) in North American colubrids, new host records are Nerodia valida, Heterodon nasicus and Storeria occipitomaculata; (iii) 0. mombasica in African colubrids; new host records are Psammophis phillipsii and P. sibilans; (iv) 0. solenopoion in Madagascan colubrids; (v) 0. pyrrhus in Australian elapids; new host records are Cacophis squamulosus, Cryptophis nigrescens, Demansia atra, D. olivacea, Hemiaspis signata, Hoplocephalus bitorquatus, H. stephensi, H. bungaroides and Tropedechis carinatus, it is also recorded in Australia in the colubrid Styporhyncus mairii (new host record) and in Demansia papuensis papuensis and D. olivacea papuensis in Papua New Guinea; (vi) 0. piscatori in Asian colubrids; (vii) 0. excavata [? = schikhobalovi] in Agkistrodon spp. and possibly other aquatic snakes in Asia; new host record is Agkistrodon halys blomhoffi. Group 3 (' radiosa' group) in African viperids contains 0. radiosa [= intorta] in Bitis spp. Specimens from Atheris nitschei, Causus rhombeatus and the colubrid Boaedon lineatus were similar, but showed differences indicating possibility of other species in this group. Group 4 (' najae' group) in African elapids and Asian elapids and colubrids contains 0. najae [ = daubaylisi]; new host records are Ophiophagus hannah, Boiga cyanea, Elaphe carinata. Group 5 (' arndti' group) in South American crotalids and colubrids contains 0. arndti [ = travassosi and sprenti] in Crotalus spp. and Bothrops spp.; new host record is B. atrox in Panama. No morphological differentiation except size could be detected between 0. arndti in crotalines and 0. sicki in colubrids, but in view of difference in the feeding habits of their host, both species names were tentatively sustained; new host records for 0. sicki are Xenodon neuwiedii, Leimadophis poecilogyrus, Pseudoboa cloelia, Philodryas patagoniensis and Micrurus frontalis; 0. ochoteranai was regarded as a species inquirenda.

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Section: Jfa Sprent 167mentioning

confidence: 99%

Ascaridoid nematodes of amphibians and reptiles: Ophidascaris Baylis, 1920

Sprent

1988

Syst Parasitol

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“…Ophidascaris obconica (Baird, 1860) Baylis, 1921 redescribed by FREITAS (1968), based on specimens recovered from Helicops angulatus (Linnaeus, 1758) in Brazil, is similar to O. tuberculatum in the length of the spicules; nevertheless, it can be distinguished from the new species by presenting the vulvar aperture located in the posterior middle third of the body, whereas in the specimens studied here, the vulvar opening is at the anterior middle third region.…”

Section: Discussionmentioning

confidence: 62%

Description of a new ascaridoid parasite of Bothrops jararaca Wied (Reptilia, Ophidia) in Brazil

Siqueira¹,

Panizzutti

Muniz-Pereira³

et al. 2005

Rev. Bras. Zool.

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A new species of Ophidascaris Baylis, 1920 is described on the basis of specimens recovered from the pit viper Bothrops jararaca Wied, 1824 in Brazil. The new species referred here was compared to other of the genus that are the closest. The differentiation was based on reliable morphological characters, mainly on what refers to the spicular length, number and distribution of caudal papillae, location of the vulvar opening, eggs size and aspect of the labial indentations. Moreover, female specimens are the only to possess a most prominent and characteristic post-anal tubercle-like structure and when analyzed together with the males, that show a great number of pre-cloacal papillae, the presence of an unpaired papilla and also of a less conspicuous post-cloacal tubercle-like structure, permit the prompt identification of the new species.

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“…La observación de los helmintos se hizo con ayuda de un microscopio compuesto con objetivos de 10x y 40x, debidamente calibrados. Para la identificación se utilizó claves para trematodos (Travassos et al, 1969) y nematodos de reptiles (Vicente et al, 1993), además de reportes de la literatura (Costa, 1961;Alho, 1965;Costa et al, 1968;Freitas, 1968;Sprent, 1980;Bursey y Flanagan, 2002).…”

Section: Procesamiento De Las Muestrasunclassified

DESCRIPCIÓN ANATOMOPATOLÓGICA DE LESIONES POR HELMINTOS GASTROINTESTINALES EN TORTUGAS MOTELO (Chelonoidis denticulata)

Julca

Casas

Chavera

et al. 2014

Rev. investig. vet. Perú

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RESUMENEl trabajo tuvo por objetivo identificar y describir las lesiones ocasionadas por helmintos en tortugas motelo (Chelonoidis denticulata). Se colectaron 40 tractos gastrointestinales de tortugas en el mercado de Belén, Iquitos, Perú, donde esta especie es comercializada como carne de consumo. El análisis macroscópico mostró que el 42.5, 70.0 y 100% de los estómagos, intestino delgado e intestino grueso, respectivamente, se encontraban parasitados o presentaban cambios patológicos de posible origen parasitario como nódulos, áreas de coloración negruzca, úlceras, perforaciones, engrosamiento, congestión y focos hemorrágicos. Se identificaron 11 especies de helmintos: Labiduris gulosa, Labiduris zschokkei, Labiduris irineuta, Atractis marquezi, Klossinemella travassosi, Sauricola sauricola, Chapiniella variabilis, Angusticaecum holopterum y Ophidascaris arndti (Nematoda), y Halltrema avitellina y Helicotrema spirale (Trematoda). Histológicamente, se evidenció la invasión de las cuatro túnicas gastrointestinales por estructuras parasitarias compatibles con H. avitellina (y sus huevos), C. variabilis, S. sauricola y una especie no determinada de atractídeo, rodeadas principalmente por exudados inflamatorios compuestos de eosinófilos, células gigantes, linfocitos y tejido conjuntivo. Asimismo, se observó la presencia de infiltrado eosinofílico en la mucosa como respuesta al contacto con O. arndti y H. spirale. Los resultados indican que todos los individuos presentaron lesiones parasitarias en intestino grueso, siendo la mayoría de grado severo, mientras que las lesiones en estómago e intestino delgado fueron mayormente de grado moderado y leve.

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Revisão do gênero Ophidascaris Baylis, 1921 (Nematoda, Ascaridoidea)

Cited by 16 publications

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Ascaridoid nematodes of amphibians and reptiles: Ophidascaris Baylis, 1920

Ascaridoid nematodes of amphibians and reptiles: Ophidascaris Baylis, 1920

Description of a new ascaridoid parasite of Bothrops jararaca Wied (Reptilia, Ophidia) in Brazil

DESCRIPCIÓN ANATOMOPATOLÓGICA DE LESIONES POR HELMINTOS GASTROINTESTINALES EN TORTUGAS MOTELO (Chelonoidis denticulata)

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