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Santillán LA, Cruces CL, Sáez GM, Martínez-Rojas R, Mondragón-Martínez A, Murrieta Morey GA, Quiñones M, Luque JL, Chero JD. An Annotated Checklist of Monogeneans (Platyhelminthes, Monogenea) from Aquatic Vertebrates in Peru: A Review of Diversity, Hosts and Geographical Distribution. Animals (Basel) 2024; 14:1542. [PMID: 38891589 PMCID: PMC11171260 DOI: 10.3390/ani14111542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/03/2024] [Accepted: 05/07/2024] [Indexed: 06/21/2024] Open
Abstract
Monogeneans are flatworm parasites that infest fish gills primarily but can also infect various other vertebrates, including amphibians, aquatic reptiles, mammals like hippos, and occasionally invertebrates like copepods, isopods, and cephalopods. Despite their remarkable diversity, our knowledge of monogenean parasites in Peru remains significantly limited, resulting in substantial gaps in our comprehension of their taxonomic identities, host associations, and geographic distribution. To address these knowledge deficits, we present an extensively curated checklist of monogeneans associated with aquatic vertebrates in Peru. This comprehensive compilation is derived from meticulous literature surveys, the examination of specimens deposited in both international and national collections, and the inclusion of additional freshly collected specimens. The checklist offers a thorough repository of data encompassing the diversity, host associations, and geographical distribution of these parasites. Taxonomic discrepancies are addressed through a critical review of the existing literature, supplemented by the direct examination of specimens, including type or voucher specimens, deposited within scientific collections. Additionally, we provide data on the DNA sequences of individual taxa. The compiled list comprises records of 358 monogenean species, including 270 valid species and 88 taxa identified at the family or generic level, all reported across 145 host species in Peru. Predominantly, these parasitic species exhibit associations within fish, with 335 infecting teleosts and 20 affecting chondrichthyans. Three monogenean species have been documented as infecting amphibians, namely Mesopolystoma samiriensis, Polistoma sp. and Wetapolystoma almae. Among the monogeneans reported, 141 were found in marine environments and 214 in freshwater environments. The most diverse families were Dactylogyridae and Diplectanidae, comprising 217 and 24 species, respectively. The hosts that harbored the highest number of monogeneans were Pygocentrus nattereri (with 23 species), followed by Stellifer minor (13 spp.) and Triportheus angulatus (11 spp.). We detected many species that do not have any material deposited in a scientific collection due to the loss or deactivation of the collection. These findings represent only a fraction of the potential diversity, considering the wide variety of aquatic vertebrate hosts inhabiting the tropical and subtropical regions of Peru.
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Affiliation(s)
- Luis Angel Santillán
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria Cruce con Av. Venezuela Cuadra 34, Lima 15081, Peru;
| | - Celso Luis Cruces
- Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440 Santiago de Surco, Lima 15039, Peru; (C.L.C.); (M.Q.)
| | - Gloria M. Sáez
- Laboratorio de Parasitología General y Especializada, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), Lima 15007, Peru;
| | - Rosa Martínez-Rojas
- Laboratorio de Parasitología de Fauna Silvestre y Zoonosis, Departamento Académico de Microbiología y Parasitología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela Cuadra 34, Lima 15081, Peru; (R.M.-R.); (A.M.-M.)
| | - Aarón Mondragón-Martínez
- Laboratorio de Parasitología de Fauna Silvestre y Zoonosis, Departamento Académico de Microbiología y Parasitología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria cruce con Av. Venezuela Cuadra 34, Lima 15081, Peru; (R.M.-R.); (A.M.-M.)
| | - Germán Augusto Murrieta Morey
- Laboratorio de Parasitología y Sanidad Acuícola, Instituto de Investigaciones de la Amazonía Peruana (IIAP), Iquitos 16001, Peru
- Programa de Pós-Graduação em Ciência Animal (PPGCA), Universidade Estadual do Maranhão (UEMA), São Luis 65055-970, Brazil
| | - Mauro Quiñones
- Facultad de Ciencias Biológicas, Universidad Ricardo Palma (URP), Av. Alfredo Benavides 5440 Santiago de Surco, Lima 15039, Peru; (C.L.C.); (M.Q.)
| | - José Luis Luque
- Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Seropédica 23890-000, Brazil;
| | - Jhon Darly Chero
- Laboratorio de Zoología de Invertebrados, Departamento Académico de Zoología, Facultad de Ciencias Biológicas, Universidad Nacional Mayor de San Marcos (UNMSM), Av. Universitaria Cruce con Av. Venezuela Cuadra 34, Lima 15081, Peru;
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Chero JD, Cruces CL, Sáez G, Luque JL. Six new species of Rhamnocercus Monaco, Wood & Mizelle, 1954 (Monogenea: Diplectanidae) infecting the gills from South American sciaenid fishes. Syst Parasitol 2022; 99:571-585. [PMID: 35711031 DOI: 10.1007/s11230-022-10047-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 05/20/2022] [Indexed: 11/27/2022]
Abstract
A parasitological survey searching diplectanids (Monogenea: Diplecatnidae) infesting the gills of marine fishes from South America was carried out during the 2019-2020 period. The gills of four sciaenid species, 2 Cheilotrema fasciatum Tschudi, 1 smalleye croaker Nebris microps Cuvier, 2 royal highhat Pareques lanfeari (Barton), and 1 minor stardrum Stellifer minor (Tschudi), were sampled. Six new species of Rhamnocercus Monaco, Wood & Mizelle, 1954 were described: Rhamnocercus chacllae n. sp. and Rhamnocercus chaskae n. sp. from P. lanfeari, Rhamnocercus fasciatus n. sp. from C. fasciatum, Rhamnocercus microps n. sp. from N. microps, and Rhamnocercus rimaci n. sp. and Rhamnocercus tantaleani n. sp. from S. minor. Rhamnocercus chacllae n. sp. can be differentiated from its congeners by its L-shaped male copulatory organ (MCO) and by having an anteromedial slight notch at ventral bar. Rhamnocercus chaskae n. sp. differs from the other species of the genus by its long and straight MCO with bifid distal end and by having haptoral accessory spines at level of ventral bar with quadrifid distal portion. Rhamnocercus fasciatus n. sp. is characterized by possessing a straight and long MCO with truncated distal end, haptoral accessory spines at level of ventral bar with bifid distal portion, dorsal bars with a knob at lateral extremity, and a large vagina with bell-shaped. Rhamnocercus microps n. sp. differs from all congeners mainly by having a short and straight MCO with the distal end of internal tube spatulate and uncovered by external tube. Rhamnocercus rimaci n. sp. is can be distinguished from all other species of Rhamnocercus by having an almost J-shaped MCO with the distal end of external tube slight expanded and the distal end of internal tube narrow and uncovered by external tube. Rhamnocercus tantaleani n. sp. is mainly characterized by its MCO, which is tubular and straight, having the distal end of external tube bifurcated (right branch well-expanded and left branch narrow) and the distal end of internal tube enveloped by left branch of the external tube. This is the first data on the parasites of P. lanfeari, a little known, but popular fish in local markets from Peru. Rhamnocercus microps n. sp. is the first described species of Rhamnocercus in Brazil. The present finding brings to 12, the number of known species of Rhamnocercus. A key to Rhamnocercus species is provided.
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Affiliation(s)
- Jhon D Chero
- Departamento de Protozoología, Helmintología e Invertebrados afines, Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Av. Arenales 1256, Jesús María, 15072, Lima, Peru.
- Programa de Pós-Graduação em Biologia Animal da, Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7, Seropédica, Rio de Janeiro, CEP, 23890-000, Brazil.
| | - Celso L Cruces
- Programa de Pós-Graduação em Biologia Animal da, Universidade Federal Rural do Rio de Janeiro, BR 465, Km 7, Seropédica, Rio de Janeiro, CEP, 23890-000, Brazil
| | - Gloria Sáez
- Laboratorio de Parasitología General y Especializada, Facultad de Ciencias Naturales y Matemática, Universidad Nacional Federico Villarreal (UNFV), El Agustino, Código postal 15007, Lima, Peru
| | - José L Luque
- Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, 23851-970, Brazil
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Euryhaliotrema dolichodrilus n. sp. and Euryhaliotrema mimulus n. sp. (Monogenoidea: Dactylogyridae) infecting the gill lamellae of porgies, Calamus spp. (Perciformes: Sparidae) from the Gulf of Mexico off Florida, U.S.A. Syst Parasitol 2022; 99:31-39. [PMID: 34988852 DOI: 10.1007/s11230-021-10014-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
Two new species of Euryhaliotrema Kritsky & Boeger, 2002 (Monogenoidea: Dactylogyridae) were described from the gill lamellae of porgies, Calamus spp. (Perciformes, Sparidae), collected from the Gulf of Mexico off Florida: Euryhaliotrema dolichodrilus n. sp. from littlehead porgy Calamus proridens Jordan & Gilbert (type host), knobbed porgy Calamus nodosus Randall and Caldwell, grass porgy Calamus arctifrons Good & Bean, sheepshead porgy Calamus penna (Valenciennes), and jolthead porgy Calamus bajonado (Bloch & Schneider); and Euryhaliotrema mimulus n. sp. from jolthead porgy. The two new species along with Euryhaliotrema amydrum Kritsky & Bakenhaster, 2011, Euryhaliotrema carbuncularium Kritsky & Bakenhaster, 2011, Euryhaliotrema carbunculus (Hargis, 1955) Kritsky & Boeger, 2002, Euryhaliotrema luisae Cruces, Chero & Luque, 2018, Euryhaliotrema magnopharyngis Cruces, Chero & Luque, 2018, and Euryhaliotrema spirulum Kritsky & Bakenhaster, 2011 appeared to form a subgroup of species that developed secondarily within Euryhaliotrema.
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Bicentenariella n. g. (Monogenea: Dactylogyridae) including descriptions of three new species and two new combinations from serranid fishes (Actinopterygii: Serranidae: Anthiinae) in the South American Pacific Ocean. Syst Parasitol 2021; 98:357-367. [PMID: 34086169 DOI: 10.1007/s11230-021-09983-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 05/04/2021] [Indexed: 10/21/2022]
Abstract
Bicentenariella n. g. is proposed to accommodate three new species of dactylogyrid monogeneans found on the gills of the threadfin bass Pronotogrammus multifasciatus Gill (Perciformes: Serranidae) from the Southeastern Pacific Ocean off Peru: Bicentenariella claudiae n. sp. (type-species), B. sinuosa n. sp. and B. puertopizarroensis n. sp. Bicentenariella n. g. is mainly characterised by possessing a broadly X-shaped dorsal bar, which has the anterior arms longer than posterior ones and by having a ventral bar with two medial projections. Bicentenariella n. g. is also characterised by having: (i) anchors equal, each with elongate superficial root and short deep root; (ii) an haptor with bilaterally paired lobes, lacking haptoral reservoirs; (iii) hooks with protruded obtuse thumb and undilated shank; (iv) a tubular tapered-shaped male copulatory organ with basal flap bifurcated or not (MCO), lacking accessory piece; (v) a delicate membrane associated with the shaft of the MCO present or absent; (vi) a muscular trumpet-shaped vagina, vaginal aperture dextrolateral; (vii) eyespots absent, accessory chromatic granules present; and (viii) a not lobulated testis. Bicentenariella claudiae n. sp. is characterised by having a MCO with whip-shaped distal end and a rod-shaped ventral bar with hatchet-shaped lateral ends. Bicentenariella sinuosa n. sp. is typified by possessing a MCO with an irregular filamentous membrane surrounding its shaft and a dumbbell-shaped ventral bar. Bicentenariella puertopizarroensis n. sp. can be differentiated from its congeners by having a tubular-shaped MCO with twisted distal end and a narrow W-shaped ventral bar. Parancylodiscoides peruensis Cruces, Chero, Sáez & Luque, 2017 from Hemanthias peruanus (Steindachner) and P. signiferi Cruces, Chero, Sáez & Luque, 2017 from H. signifer (Garman), are transferred to Bicentenariella n. g. as B. peruensis n. comb and B. signiferi n. comb., respectively.
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A new genus and three new species of dactylogyrids (Monogenea), gill parasites of the threadfin bass, Pronotogrammus multifasciatus Gill (Perciformes: Serranidae) in the Southeastern Pacific Ocean off Peru. Syst Parasitol 2020; 97:121-131. [PMID: 31970628 DOI: 10.1007/s11230-019-09900-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Accepted: 10/14/2019] [Indexed: 10/25/2022]
Abstract
Pronotogrammella n. g. is erected to accommodate Pronotogrammella boegeri n. sp. (type-species), Pr. scholzi n. sp. and Pr. multifasciatus n. sp. (Monogenea: Dactylogyridae). The new species are gill parasites of the threadfin bass Pronotogrammus multifasciatus Gill (Perciformes: Serranidae), a demersal teleost collected from off the coastal zone of Puerto Pizarro, Tumbes, Peru. Pronotogrammella n. g. is mainly characterised by having broadly fork-shaped dorsal anchors, which have an accessory anchor sclerite articulated to the tip of the superficial roots. Pronotogrammella n. g. is also characterised by having: (i) a tubular tapered-shaped male copulatory organ (MCO), filamentous distally, with a clockwise coil at distal end or not, lacking accessory piece; (ii) a dorsal bar with an anteromedial delicate umbelliform membrane supported by two processes; (iii) hooks with upright blunt thumb and uniform shank; (iv) a vaginal aperture dextrolateral; (v) a subquadrangular haptor, with inconspicuous lateral flaps and lacking haptoral reservoirs; and (vi) eye-spot or chromatic granules absent. Pronotogrammella boegeri n. sp. is characterised by its crosier-shaped MCO having a clockwise coil at distal end and by its dorsal bar with a straight anteromedial processes. Pronotogrammella scholzi n. sp. is typified by possessing of a dorsal bar with the anteromedial processes like cow horns, hoof-shaped deep roots of the dorsal anchors and a broader shaft of the MCO. Pronotogrammella multifasciatus n. sp. differs from all congeners by having a tubular MCO with twisted shaft and a base with a short and broad arm and by having an almost dumbbell-shaped ventral bar.
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Euryhaliotrema spp. (Monogenoidea: Dactylogyridae) Parasitic on the Gill Lamellae of Perciform Fishes in Moreton Bay, Queensland, Australia, with the Description of Euryhaliotrema solenophallus sp. nov. from the Silver Moony Monodactylus argenteus (Linnaeus) (Monodactylidae). Acta Parasitol 2019; 64:223-227. [PMID: 30671770 DOI: 10.2478/s11686-019-00025-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2018] [Accepted: 01/02/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND The present paper represented the third installment on the monogenoidean parasites collected during a workshop exploring the diversity of the parasites of fishes in Moreton Bay, Queensland, Australia. Previous reports on monogenoids collected during the workshop included species parasitizing beloniform and gerreid fishes. PURPOSE During January 2016, the author, having responsibility for the identification and description of monogenoids, participated in a workshop supported by an Australian Biological Resources Study Grant to Drs. Thomas Cribb and Scott Cutmore, University of Queensland, to explore the diversity of parasites infecting the fishes of Moreton Bay, Queensland, Australia. METHODS Approximately 100 species of marine fishes were necropsied for parasites. Standard procedures for collecting, mounting, drawing, and measuring of monogenoids were employed. RESULTS A new species of Euryhaliotrema was collected and described from the silver moony Monodactylus argenteus (Monodactylidae) and the first recording of Euryhaliotrema spirotubiforum on the dory snapper Lutjanus fulviflamma and Russell's snapper Lutjanus russellii (both Lutjanidae) in Moreton Bay was reported. CONCLUSION The results suggested that the diversity of dactylogyrids off eastern Australia is under estimated in the literature.
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