A phylogenetic analysis and revised classification of the Monocotylidae Taschenberg, 1879 (Monogenea)

Chisholm, Leslie A.; Wheeler, Terry A.; Beverley‐Burton, Mary

doi:10.1007/bf00008827

Cited by 71 publications

(59 citation statements)

References 18 publications

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“…Despite the increase in the number of studies of the phylogenetic relationships of monogeneans using morphological features (BOEGER & KRITSKY, 1989, 1993CHISHOLM et al, 1995;WHITTINGTON, 2004), there still exist confusion between characters (morphological features) and the states (derived forms) of those characters. All of the states of a particular character are homologous.…”

Section: Remarks and Discussionmentioning

confidence: 99%

Neonchocotyle violantei n. sp. (Monogenea, Hexabothriidae) from Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico

Quiterio-Rendon

Monks

Pulido-Flores

2018

Rev. Bras. Parasitol. Vet.

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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.Keywords: Neonchocotyle sp. n., Pseudobatos lentiginosus, helminth, key. ResumoNeonchocotyle 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.Paravras-chave: Neonchocotyle sp. n., Pseudobatos lentiginosus, helminto, chave.

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Section: Remarks and Discussionmentioning

confidence: 99%

Neonchocotyle violantei n. sp. (Monogenea, Hexabothriidae) from Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico

Quiterio-Rendon

Monks

Pulido-Flores

2018

Rev. Bras. Parasitol. Vet.

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“…In the revision of Monocotylidae, Chisholm et al (1995) combined Monocotylinae with Dendromonocotylinae into a single subfamily defined by the uniquely derived and easily visible septal and papillary haptoral sclerites. This decision has supported by molecular analysis (Chisholm et al 2001).…”

Section: Discussionmentioning

confidence: 99%

“…A Chisholm, 1995 from Dasyatis fluviorum by its morphology and size of the anchors (525) which show a long and striated handle, but differs from it by the number of loops of the MCO (12 vs 6). However, according to Chisholm et al (1995), the two available specimens of this species "are not in good condition and the haptor and anatomy are unknow".…”

Section: Classmentioning

confidence: 99%

Redescription of Monocotyle myliobatis (Monogenea, Monocotylidae) from the type host Myliobatis aquila (Elasmobranchii, Myliobatidae) off the Algerian coast

Tazerouti

Neifar

Euzet

2011

Acta Parasitologica

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Monocotyle was proposed by Taschenberg (1878) to accommodate M. myliobatis Taschenberg, 1878 from the gills of Myliobatis aquila (Linnaeus) caught at the Aquarium of the Zoological Station of Naples (Italy). There have been three descriptions of this species: the original one by Taschenberg (1878) and two which are incomplete by Perugia and Parona (1890) and Palombi (1942). Illustrations by these authors are poor and sometimes conflicting. We have rediscovered M. myliobatis on the gills of the type host Myliobatis aquila caught near Algiers, Tamentfoust (36°47'N, 3°12'E) (Algeria). We provide new illustrations of this monogenean, based on new specimens. We also redescribe the anatomy, with special attention to the male and female reproductive systems, and we provide additional data regarding the morphology, the number and arrangement of the septal sclerites of the haptor and the haptoral marginal papillae. We indicate the similarity between Monocotyle myliobatis and Monocotyle sp. Euzet et Maillard, 1967 collected from Pteromyleus bovinus, Geoffroy Saint Hillaire (Elasmobranchii, Myliobatidae) by J. Cadenat off Dakar (Senegal).

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“…Calicotyle is a somewhat unusual monogenean in that it is endoparasitic, found in the cloaca, rectum, rectal gland, spiral valve, or oviducts of its hosts (Sproston, 1946;Yamaguti, 1963;Chisholm et al, 1995Chisholm et al, , 2001). In the past, this parasite has attracted attention of numerous investigators and various aspects of biology of Calicotyle were studied using molecular and morphological methods, including electron microscopy.…”

Section: Introductionmentioning

confidence: 99%

“…Within the Monocotylidae, spermiogenesis and spermatozoon ultrastructure of 9 species from 5 of the 6 subfamilies identifi ed by Chisholm et al (1995) were studied (see Bruňanská et al, 2017). These data include two species of the genus Calicotyle, namely Calicotyle kroyeri and Calicotyle australiensis (Tappenden & Kern, 1991;Watson & Rohde, 1994).…”

Section: Introductionmentioning

confidence: 99%

Spermiogenesis and sperm ultrastructure inCalicotyle affinisScott, 1911 (Platyhelminthes, Monogenea, Monopisthocotylea, Monocotylidae)

Bruňanská

Poddubnaya

2017

Helminthologia

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Summary Spermatological characteristics of Calicotyle affi nis Scott, 1911, an endoparasitic monocotylid monogenean from the cloaca of a holocephalan fi sh Chimaera monstrosa L, have been investigated by means of transmission electron microscopy for the fi rst time. Spermiogenesis exhibits features basically similar to those of the congeneric Calicotyle kroyeri and Calicotyle australiensis, but there are some new fi ndings with respect to the formation and fi ne structure of the spermatozoon including the remarkable complex end-piece (EP). Morphogenesis of the EP, which is located at the anterior (proximal) region of the late spermatid, includes two stages: (1) the centriolar region is continuous with a cytoplasmic mass of the zone of differentiation, the electron-dense surface of the spermatid undergoes signifi cant changes in the sculpturing and the inner core of developing spermatid is electron-lucent; (2) after central fusion of the arching membranes a defi nitive structure of the EP is subsequently evolved, fi nally comprising 3 -4 electron-dense discs attached to a central common electron-lucent column. The EP is considered as a synapomorphy of the genera Calicotyle + Dictyocotyle. The mature spermatozoon of C. affi nis comprises the EP, two parallel axonemes of almost equal lengths with the 9 + "1" trepaxonematan pattern, mitochondrion, nucleus, and a reduced number of parallel cortical microtubules (1 -3). The posterior (distal) extremity of the mature spematozoon contains a single tapering axoneme. Ultrastructural characteristics of the mature spermatozoon of C. affi nis coincide mostly with those of congeneric C. australiensis. Variations of the spermatological characters within the genus Calicotyle, between Calicotyle and enigmatic Dictyocotyle as well as other monocotylid monogeneans are discussed.

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A phylogenetic analysis and revised classification of the Monocotylidae Taschenberg, 1879 (Monogenea)

Cited by 71 publications

References 18 publications

Neonchocotyle violantei n. sp. (Monogenea, Hexabothriidae) from Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico

Neonchocotyle violantei n. sp. (Monogenea, Hexabothriidae) from Pseudobatos lentiginosus (Rhinopristiformes, Rhinobatidae) of Yucatán, Gulf of Mexico

Redescription of Monocotyle myliobatis (Monogenea, Monocotylidae) from the type host Myliobatis aquila (Elasmobranchii, Myliobatidae) off the Algerian coast

Spermiogenesis and sperm ultrastructure inCalicotyle affinisScott, 1911 (Platyhelminthes, Monogenea, Monopisthocotylea, Monocotylidae)

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