Concepts in Animal Parasitology, Chapter 60: Monogenea (Class)

Chapter 60 in Concepts in Animal Parasitology on the class Monogenea by Griselda Pulido-Flores. 2024. S. L. Gardner and S. A. Gardner, editors. Zea Books, Lincoln, Nebraska, United States. doi: 10.32873/unl.dc.ciap06

Distribution Extension of \u3ci\u3eAspiculuris americana\u3c/i\u3e Parasite of \u3ci\u3ePeromyscus difficilis\u3c/i\u3e in Hidalgo, Mexico

English: As a part of an ongoing project to inventory the helminth parasites of rodents in Mexico, 30 individuals of Aspiculuris americana were collected inhabiting the intestine from three specimens of the rock mouse Peromyscus difficilis, collected from Cerro Xihuingo, Municipality of Tepeapulco, Hidalgo State, Mexico. This species of nematode parasite different species of the genus Peromyscus (P. gossypinus, P. leucopus, P. maniculatus, and P. floridanus) distributed from Yukon Territory in Canada to Florida in the United States of America. This is the first report of Aspiculuris americana in a Mexican endemic rodent, widening the known distribution of the species to the southern portion of the country. Español: Como parte de un proyecto para inventariar los parásitos helmintos de roedores en México, se recolectaron 30 individuos de Aspiculuris americana que parasitan el intestino de tres especímenes del ratón de las rocas Peromyscus difficilis, recolectados en Cerro Xihuingo, Municipio de Tepeapulco, Estado de Hidalgo, Mexico. Esta especie de nematodo parasita diferentes especies del género Peromyscus (P. gossypinus, P. leucopus, P. maniculatus y P. floridanus) distribuidas desde el territorio de Yukon en Canadá hasta Florida en los Estados Unidos de América. Este es el primer informe de Aspiculuris americana en un roedor endémico mexicano, ampliando la distribución conocida de la especie a la parte sur del país

\u3ci\u3eNeonchocotyle violantei\u3c/i\u3e n. sp. (Monogenea, Hexabothriidae) from \u3ci\u3ePseudobatos lentiginosus\u3c/i\u3e (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico = \u3ci\u3eNeonchocotyle violantei\u3c/i\u3e n. sp. (Monogenea, Hexabothriidae) do \u3ci\u3ePseudobatos lentiginosus\u3c/i\u3e (Rhinopristiformes, Rhinobatidae) de Yucatán, Golfo do México

Abstract Neonchocotyle violantei n. sp. (Monogenea: Hexabothriidae) infects the gill of the Atlantic guitarfish, Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) from littoral waters of Celestún, Yucatán, Mexico. It is assigned to Neonchocotyle because it has, among other features, an asymmetrical haptor, a seminal receptacle, a smooth oötype, and an egg with two elongate filaments. It differs from Neonchocotyle pastinacae, the only congener, by having a small body (821 long by 315 wide, length to width = 2.6:1), two pairs of microhooks between the haptoral appendix suckers, extracaecal (submarginal) vaginal pores, and 5-9 testes. This is the first record of a species of Neonchocotyle in the Gulf of Mexico, the first monogenean reported from P. lentiginosus in Mexico and the second species of Hexabothriidae reported from Mexico. Resumo Neonchocotyle violantei n. sp. (Monogenea: Hexabothriidae) infecta brânquia de Pseudobatos lentiginosus, (Rhinopristiformes, Rhinobatidae) de águas litorâneas ao largo da costa de Celestún, Yucatán, México. É atribuído a Neonchocotyle porque tem, entre outras características, um haptor assimétrico, um receptáculo seminal, um tipo oótipo liso e um ovo com dois filamentos alongados. Difere de Neonchocotyle pastinacae, o único congênere, por ter um corpo pequeno (821 de comprimento por 315 de largura, comprimento a largura = 2,6: 1), dois pares de microganchos entre as ventosas do apêndice haptoral, poros vaginais extracaecais (submarginal) e 5-9 testículos. Este é o primeiro registro de uma espécie de Neonchocotyle no Golfo do México, o primeiro monogenético registrado em P. lentiginosus no México e a segunda espécie de Hexabothriidae relatada no México

Distribution Extension of \u3ci\u3eEscherbothrium molinae\u3c/i\u3e Berman and Brooks, 1994 (Cestoda: Tetraphyllidea: Triloculariidae) in \u3ci\u3eUrotrygon\u3c/i\u3e sp. from the Pacific Coast of Mexico

Cestodes collected from the spiral valves of the stingray Urotrygon sp. from the Pacific coast of Mexico were identified as Escherbothrium molinae Berman and Brooks, 1994. The first report of the species was from the Gulf of Nicoya and the Guanacaste coast, Costa Rica; this work represents the second report of the species since the original description and extends its distribution north to Acapulco, Guerrero, Mexico

Host relationships and geographic distribution of species of Blanchard, 1848 (Onchoproteocephalidea, Onchobothriidae) in elasmobranchs: a metadata analysis

Species of Acanthobothrium have been documented as parasites of the spiral intestine of elasmobranchs. Results of a metadata analysis indicate that 114 species of elasmobranchs have been reported as hosts of 200 species of Acanthobothrium. The metadata analysis revealed that 3.7% of species of sharks and 14.9% of species of rays that have been reported as hosts to date; some species are parasitized by more than one species of Acanthobothrium. This work provides a Category designation, as proposed by Ghoshroy and Caira (2001), for each species of Acanthobothrium. These Category designations are a tool to facilitate comparisons among members of Acanthobothrium for descriptions of new species in the future

A new species of \u3ci\u3eAcanthobothrium\u3c/i\u3e (Eucestoda: Onchobothriidae) in \u3ci\u3eAetobatus\u3c/i\u3e cf. \u3ci\u3enarinari\u3c/i\u3e (Myliobatidae) from Campeche, México = Uma nova espécie de \u3ci\u3eAcanthobothrium\u3c/i\u3e (Eucestoda: Onchobothriidae) em \u3ci\u3eAetobatus\u3c/i\u3e cf. \u3ci\u3enarinari\u3c/i\u3e (Myliobatidae) de Campeche, México

Abstract The helminthological examination of nine individuals of Aetobatus cf. narinari (spotted eagle ray; raya pinta; arraia pintada) revealed the presence of an undescribed species of cestode of the genus Acanthobothrium. The stingrays were collected from four locations in México: Laguna Términos, south of Isla del Carmen and the marine waters north of Isla del Carmen and Champotón, in the State of Campeche, and Isla Holbox, State of Quintana Roo. The new species, nominated Acanthobothrium marquesi, is a category 3 species (i.e, the strobila is long, has more than 50 proglottids, the numerous testicles greater than 80, and has asymmetrically-lobed ovaries); at the present, the only category 3 species that has been reported in the Western Atlantic Ocean is Acanthobothrium tortum. Acanthobothrium marquesi n. sp. can be distinguished from A. tortum by length (26.1 cm vs. 10.6 cm), greater number of proglottids (1,549 vs. 656), a larger scolex (707 µm long by 872 µm wide vs. 699 µm long by 665 µm wide), larger bothridia (626 µm long by 274 µm wide vs. 563 µm long by 238 µm wide). This is the first report of a species of Acanthobothrium from the Mexican coast of the Gulf México. Resumo O exame helmintológico do trato digestivo de nove espécimes de Aetobatus cf. narinari (arraia pintada) revelou a presença de uma nova espécie de cestódeo do gênero Acanthobothrium. As arraias foram coletadas de quatro locais no México: Laguna Términos, ao sul de Isla del Carmen e nas águas marinhas ao norte de Isla del Carmen e Champotón, no estado de Campeche, e Isla Holbox, estado de Quintana Roo. A nova espécie foi denominada Acanthobothrium marquesi, pertencente a uma espécie da categoria 3 (estrobilo longo, tendo mais de 50 proglotes, numerosos testículos, superiores a 80, e ovários assimetricamente lobados). Apenas outra espécie deste gênero, Acanthobothrium tortum pertence a categoria 3, no Oceano Atlântico Ocidental. Acanthobothrium marquesi n. sp. se distingue de A. tortum por ser mais longo (26,1 cm vs. 10,6 cm), possuir maior número de proglotes (1.549 vs. 656), ter um escolex maior (707 µm de comprimento por 872 µm de largura vs. 699 µm de comprimento por 666 µm de largura), e botridias maiores (626 µm de comprimento por 274 µm de largura vs. 563 µm de comprimento por 238 µm de largura). Este é o primeiro relato de uma espécie de Acanthobothrium do Golfo do México

IV Foro de Investigadores por la Conservación y II Simposio de Areas Naturales Protegidas del Estado de Hidalgo

Ecofisiología de Echinocadus platyacanthus (Región Los Venados), en la reserva de la biosfera Barranca de Metztitlán, Hidalgo. • Hernández-Aguilar, A, G. Ramírez-Ramírez y M. Collazo-Ortega. Banco de semillas de Echinocadus platyacanthus Link y Otto (Cactaceae) y especies asociadas en una región semiárida de la reserva de la biosfera Barranca de Metztitlán, Hidalgo • López-López, J. v., y M. Collazo-Ortega. Estimación de balance de humedad para la cuenca Amajac que incluye la reserva de la biosfera Barranca de Metztitlán bajo condiciones actuales y escenarios de cambio climático. • Lucio Hernández, M., J. D. Gómez Díaz y A Monterroso Rivas. Eficiencia de trasmisión de virus fitopatógenos por afidos en jitomate (Lycopersicon esculentum Mili) en la Vega de Metztitlán, Hidalgo. • Ordóñez Xahuentitla, A., M. P. Rodríguez Guzmán, R Peña Martínez y D. Ochoa Martínez. Epidemiología y manejo regional de enfermedades virales, virus fitopatógenos y sus insectos vectores. • Rodríguez-Guzmán, M. P., R Peña-Martínez, G. Negrete-Fernández, H. C Álvarez-Solís, y G. Lucho-Constantino. Los servicios ambientales hidrológicos bajo escenarios de cambio climático en el parque Nacional El Chico. • Tinoco Rueda, J. A., A. 1. Monterroso Rivas y J. D. Gómez Díaz. Cambio climático y vegetación en la reserva de la biosfera Barranca de Metztitlán. • Tinoco Rueda J. A., A I. Monterroso Rivas y J. D. Gómez Díaz. Determinación de metales pesados en Cyprinus carpio de la laguna de Metztitlán, Hidalgo, México. • Lozada-Zarate, E. J., S. Monks, G. Pulido-Flores, A. J. Gordillo-Martínez y F. Prieto-García. Presencia de Spauligodon sp. (Nematoda: Pharyngodonidae) en algunas especies de Sceloporus (Sauria: Prhynosomatidae) de la reserva de la biosfera Barranca de Metztitlán, Hidalgo, México. • Escorcia-Ignacio, R, G. Pulido-Flores, y S. Monks. Evaluación de los efectos tóxicos y genotóxicos de extractos metanólicos de dos especies de macromicetes, con base en estudios etnomicológicos relacionados con su toxicidad de diferentes regiones del Estado de Hidalgo. • Gaytán-Oyarzún J. C, L. Romero-Bautista, M. Muñoz-Domínguez y R Villagomez-Ibarra. Evaluación de la capacidad morfogenética en explantes longitudinales de Astrophytum ornatum (De Candolle) (Cactaceae), para incrementar su micropropagación. • Crisóstomo Simón Miriam y López Escamilla Ana Laura

Distribution extension of Acanthobothrium cartagenensis Brooks & Mayes, 1980 (Tetraphyllidea: Onchobothriidae) in Urobatis jamaicensis (Cuvier, 1816) (Myliobatiformes: Urotrygonidae) from Quintana Roo, México

The collection of eight specimens of Acanthobothrium cartagenensis on the coast of Quintana Roo, México extends the geographic distribution of the species from the original locality (Cartagena, Colombia) to at least the northeastern limit of the Mexican coast of the Caribbean Sea.  The species is a parasite of Urobatis jamaicensis, a common stingray of the tropical western Atlantic.  This species has not been reported since the original description in 1980

A new species of Spauligodon (Nematoda: Pharyngodonidae) in Sceloporus (Squamata: Phrynosomatidae) from the Reserve of the Biosphere Barranca de Metztitlán

Abstract. A new species of Spauligodon collected from the digestive tract of Sceloporus minor and Sceloporus grammicus is described. The species is assigned to Spauligodon because the caudal alae start at the level of the precloacal papillae and embed the adcloacal papillae. The species described herein is most similar to S. garciaprietoi, S. goldbergi, and S. mearnsi because all of them present spicules; diagnostic traits include having male worms with 1-5 spines in the tail, tripartite lateral alae with 5 ridges, females with spines in the tail and eggs that are fusiform. Spauligodon lamothei n. sp. was found in 4 of 9 individuals of S. minor and 1 of 5 individuals of S. grammicus. This species is the tenth recorded in the neotropics and the third from Mexico. Key words: Spauligodon lamothei n. sp., Sceloporus grammicus, Sceloporus minor, description, Hidalgo, Mexico. Resumen. Se describe una especie nueva de Spauligodon colectada del tubo digestivo de Sceloporus minor y Sceloporus grammicus. La especie fue asignada a Spauligodon porque el ala caudal inicia al nivel de la papila precloacal y la papilla adcloacal está embebida en la misma. La especie que se describe es similar a S. garciaprietoi, S. goldbergi, y S. mearnsi porque todas presentan espículas, los machos presentan de 1-5 espinas en la cola, ala lateral tripartita con 5 crestas, las hembras presentan espinas en la cola, y huevos fusiformes. Spauligodon lamothei n. sp. se encontró en 4 de 9 ejemplares de S. minor y en 1 de 5 individuos de S. grammicus. Esta especie representa el décimo registro en el neotrópico y el tercero de México

Distribution extension of Dasyonchocotyle dasyatis (Yamaguti, 1968) Boeger & Kritsky, 1989 (Monogenea: Hexabothriidae) in Dasyatis longa (Garman, 1880) (Myliobatiformes: Dasyatidae) from Sinaloa, México

The collection of 13 specimens of Dasyonchocotyle dasyatis (Yamaguti, 1968) Boeger & Kritsky, 1989 on the coast of Sinaloa, México extends the geographic distribution of the species from the original locality (Hawaii, U.S.A.) eastward to at least the Pacific Coast of Mexico. The species is a parasite of Dasyatis longa (Garman, 1880), a common stingray of the tropical eastern Pacific. This species has not been reported since the original description in 1968