Two new species of Clestobothrium (Cestoda: Bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: Merlucciidae) from the Patagonian shelf of Argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819)

Pertierra, Alicia A. Gil de; Incorvaia, Inés S.; Arredondo, Nathalia J.

doi:10.14411/fp.2011.012

Cited by 5 publications

(13 citation statements)

References 22 publications

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“…The apical disc in C. cristinae and C. splendidum forms two lip-like structures (see Gil de Pertierra et al 2011). This is the same appearance as observed in the present study of C. crassiceps when specimens were fixed in hot formaldehyde (see Fig.…”

Section: Resultssupporting

confidence: 84%

“…Therefore, for many years, C. crassiceps, as well as C. gibsoni and C. neglectum, have been considered as lacking this stucture (Lühe 1899;Blend 2003, 2005). However, the presence of an apical disc was reported in both of the recently described species belonging to Clestobothrium (C. cristinae and C. splendidum) by Gil de Pertierra et al (2011). The latter work also pointed out the existence of this apical structure in C. crassiceps where, based on the observation of Figure 1K in the revision of Kuchta et al (2008a), it was described as a "Weekly developed apical disk" [sic].…”

Section: Resultsmentioning

confidence: 91%

“…The latter work also pointed out the existence of this apical structure in C. crassiceps where, based on the observation of Figure 1K in the revision of Kuchta et al (2008a), it was described as a "Weekly developed apical disk" [sic]. Unfortunately, the orientation of the scanning electron micrograph presented in Kuchta et al (2008a) does not permit the recognition of an apical disc as demonstrated in both of the other species by Gil de Pertierra et al(2011). Moreover, Kuchta et al (2008a), in the diagnosis of Clestobothrium, remarked on the absence of an apical disc.…”

Section: Resultsmentioning

confidence: 98%

“…To date, this genus comprises only five valid species: (1) C. crassiceps, (2) C. gibsoni, (3) C. neglectum (see Kuchta et al 2008b), and two recently erected new species (4) C. cristinae and (5) C. splendidum (see Gil de Pertierra et al 2011). Species of Clestobothrium are prevalent mainly among the Gadiformes and the type-species of the genus, C. crassiceps (Rudolphi, 1819), is usually encountered parasitizing the European hake M. merluccius but has been reported from other fishes (Gil de Pertierra et al 2011). It has a wide distribution, including the Mediterranean Sea, the North Sea, and both Atlantic and Pacific Oceans (Schmidt 1986, Bray et al 1994, Kuchta et al 2008a, Gil de Pertierra et al 2011.…”

Section: Resultsmentioning

confidence: 99%

“…Species of Clestobothrium are prevalent mainly among the Gadiformes and the type-species of the genus, C. crassiceps (Rudolphi, 1819), is usually encountered parasitizing the European hake M. merluccius but has been reported from other fishes (Gil de Pertierra et al 2011). It has a wide distribution, including the Mediterranean Sea, the North Sea, and both Atlantic and Pacific Oceans (Schmidt 1986, Bray et al 1994, Kuchta et al 2008a, Gil de Pertierra et al 2011.…”

Section: Resultsmentioning

confidence: 99%

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SEM evidence for existence of an apical disc on the scolex of Clestobothrium crassiceps (Rudolphi, 1819): comparative results of various fixation techniques

Miquel¹,

Świderski²,

Marigo³

et al. 2012

Acta Parasitologica

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The scolex of the bothriocephalidean cestode Clestobothrium crassiceps was studied by means of scanning electron microscopy (SEM). The comparative results of various fixation procedures and techniques are presented. The scolex of C. crassiceps is oval to globular and exhibits two deep bothria which appear in the form of two lobes separated by a longitudinal groove. At the apex of the scolex, resembling a beret, an apical disc is present (oval, flattened and with a sinuous edge). Our results are compared with those previously reported in other species of Clestobothrium. This study represents the first report which highlights the presence of an apical disc in the scolex of C. crassiceps. It describes the effects of different procedures applied to our material during preparation and a comparative analysis results obtained using these various methods.

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Section: Resultssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 91%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 3 more Smart Citations

SEM evidence for existence of an apical disc on the scolex of Clestobothrium crassiceps (Rudolphi, 1819): comparative results of various fixation techniques

Miquel¹,

Świderski²,

Marigo³

et al. 2012

Acta Parasitologica

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Ultrastructure of the scolex of Orygmatobothrium schmittii (Cestoda: Phyllobothriidea)

Mutti

Ivanov

2019

Journal of Morphology

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The ultrastructure of the scolex of Orygmatobothrium schmittii (Cestoda: Phyllobothriidae) was studied using histochemistry, scanning, and transmission electron microscopy. The central bothridial structure resulted in a glandulomuscular organ formed by a mass of syncytial glands and radial muscles, with glycoprotein secretions potentially adhesive. Among the sensory receptors found on the scolex, a particular type was found surrounding the glandulomuscular organ, which might be related in the regulation of the secretions. The internal structure of the microtriches revealed a diversity of configurations according to their morphotype and distribution on the scolex. Microtriches with larger caps are thought to be useful for attachment purposes. In addition, the thick bounding membranes of the attachment organs and the circular musculature in the bothridia, seem to aid to the attachment of the scolex to the mucosa of the host.

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A new species of Bothriocephalus Rudolphi, 1808 (Eucestoda: Bothriocephalidea) from the channel bull blenny Cottoperca gobio (Günther) (Perciformes: Bovichtidae) on the Patagonian shelf off Argentina

et al. 2015

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Bothriocephalus timii n. sp. is the first tapeworm species reported from a bovichtid fish. The new species was commonly found (prevalence 85%) in the intestine of Cottoperca gobio (Günther) collected on the Patagonian shelf off Argentina. It is characterised by a strobila with segments and proglottides usually longer than wide, having posterolateral wing-like expansions with a medial notch on both the dorsal and ventral surfaces; a scolex with an apical disk; elongate bothria opening posteriorly, with laterally and longitudinally extended convex lappets; testes 42-185 in number, in one layer, arranged in two lateral continuous bands along the strobila; an elongate cirrus-sac, situated obliquely, with the proximal part curved anteriolaterally; and an ovary which is usually butterfly-shaped. The new species is morphologically similar to B. bengalensis Devi, 1975 from Carangoides plagiotaeniata Bleeker, B. branchiostegi Yamaguti, 1952 from Branchiostegus japonicus Houttuyn, B. carangis Yamaguti, 1968 from C. ferdau Forsskål and B. gadellus Blend & Dronen, 2003 from Gadella imberbis (Vaillant) based on the presence of posterolateral wing-like expansions with a medial notch on dorsal and ventral surfaces of segments and proglottides along the strobila. Bothriocephalus timii n. sp. differs from B. bengalensis, B. branchiostegi and B. carangis in the absence of a vaginal sphincter and from B. gadellus in the number of testes and the size of scolex. Unpublished molecular data suggest that B. timii is most closely related to B. australis Kuchta, Scholz & Justine, 2009 from Platycephalus spp. and B. scorpii (Müller, 1776) from Myoxocephalus scorpius (Linnaeus). The genus Indobothrium Sedova & Gulyaev, 2009 is herein considered a junior synonym of Bothriocephalus Rudolphi, 1808.

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Two new species of Clestobothrium (Cestoda: Bothriocephalidea), parasites of Merluccius australis and M. hubbsi (Gadiformes: Merlucciidae) from the Patagonian shelf of Argentina, with comments on Clestobothrium crassiceps (Rudolphi, 1819)

Cited by 5 publications

References 22 publications

SEM evidence for existence of an apical disc on the scolex of Clestobothrium crassiceps (Rudolphi, 1819): comparative results of various fixation techniques

SEM evidence for existence of an apical disc on the scolex of Clestobothrium crassiceps (Rudolphi, 1819): comparative results of various fixation techniques

Ultrastructure of the scolex of Orygmatobothrium schmittii (Cestoda: Phyllobothriidea)

A new species of Bothriocephalus Rudolphi, 1808 (Eucestoda: Bothriocephalidea) from the channel bull blenny Cottoperca gobio (Günther) (Perciformes: Bovichtidae) on the Patagonian shelf off Argentina

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