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At least 307 records · Page 17Linked to original sources
PubMed2003

Taxonomic revision of Joyeuxilepis Spassky, 1947 (Cestoda: Amabiliidae): redescriptions of J. biuncinata (Joyeux & Baer, 1943), J. decacantha (Fuhrmann, 1913) and J. pilatus Borgarenko & Gulyaev, 1991.

Two species of Joyeuxilepis Spassky, 1947 are redescribed from Tachybaptus ruficollis in Bulgaria: J. biuncinata (Joyeux & Baer, 1943) and J. pilatus Borgarenko & Gulyaev, 1991. The syntypes of J. decacantha (Fuhrmann, 1913) from Podiceps cristatus in Sweden and voucher specimens of J. pilatus (identified as 'Tatria decacantha') from T. ruficollis in England (new geographical record) from the British Museum (Natural History) Collection are also re-described. The voucher specimens and cysticercoids of Tatria spp. from dragonfly nymphs in Wales recorded by Rees (1973) were re-examined. Previous records of J. biuncinata, J. decacantha and J. pilatus are critically analysed in view of the present results. The major reliable diagnostic characters for species of Joyeuxilepis are presented and the distinguishing criteria for the three species studied are re-evaluated.

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PubMed2003

Resurrection of Proteocephalus sagittus (Grimm, 1872) (Cestoda: Proteocephalidea) based on morphological and molecular data.

This paper presents a redescription of the proteocephalidean cestode Proteocephalus sagittus (Grimm, 1872) based on freshly collected specimens from the type-host, the stone loach Barbatula barbatula (L.) (family Balitoridae), from the Czech Republic. This species has recently been synonymised with P. torulosus (Batsch, 1786), a parasite of cyprinid fishes in the Holarctic Region, but it differs in the following characters: (i) scolex morphology (scolex rounded, with more apically situated suckers and lacking longitudinal wrinkles in P. sagittus versus large and club-shaped, with more laterally situated suckers and longitudinal wrinkles in P. torulosus); (ii) position of the vagina (opens anterior to the cirrus-sac in P. sagittus versus overlapping its distal region dorsally in P. torulosus); (iii) length of the cirrus-sac (shorter in P. sagittus); (iv) osmoregulatory canals (more distinct and situated more laterally, but almost indistinguishable and more medial in P. torulosus); and (v) sequences of the partial 18S rRNA (V4 region - 96.9% similarity) and 5.8S-ITS2 genes (65.9% similarity). P. pamirensis Dzhalilov & Ashurova, 1971, a poorly described species from the Tibetan stone loach Noemacheilus stoliczkai[= Tryplophysa stoliczkae (Steindachner)] in Tadjikistan, is synonymised with P. sagittus.

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PubMed2003

Clestobothrium neglectum (Lönnberg, 1893) n. comb. (Cestoda: Bothriocephalidae) from the tadpole fish Raniceps raninus (L.) (Gadidae) from Sweden.

Clestobothrium neglectum (Lönnberg, 1893) n. comb. is redescribed from specimens previously deposited in The Natural History Museum, London, UK by Dr David I. Gibson obtained from the intestine of the tadpole fish Raniceps raninus (Gadidae) collected from off the western coast of Sweden, near Kristineberg. C. neglectum resembles C. crassiceps (Rudolphi, 1819), the type- and only species currently recognised in the genus, but differs in having fine spiniform-like structures that are likely microtriches covering the posterior fourth of the scolex and all proglottids, a highly folded tegument forming numerous longitudinal ridges on both the dorsal and ventral surfaces of the proglottids giving them a scalloped appearance, a somewhat smaller egg (68 x 35 vs 75 x 40 microm), a U-shaped rather than H-shaped ovary and more testes (70-85 vs 40-50 per proglottid). C. neglectum is also compared to two species with similar scoleces that were previously assigned to Clestobothrium, Bothriocephalus acheilognathi Yamaguti, 1934 and B. kivuensis Baer & Fain, 1958 (considered to be synonymous with B. acheilognathi by Pool, 1987). This is the first report of a species of Clestobothrium Lühe, 1899 (Bothriocephalidae) from a gadid fish.

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PubMed2003

Taxonomic revision of Joyeuxilepis Spassky, 1947 (Cestoda: Amabiliidae): redescriptions of J. acanthorhyncha (Wedl, 1855) and J. fuhrmanni (Solomon, 1932), a key and a new generic diagnosis.

Two species of Joyeuxilepis Spassky, 1947 with 14 rostellar hooks are redescribed: J. acanthorhyncha (Wedl, 1855) on the basis of specimens from Tachybaptus ruficollis in Bulgaria and J. fuhrmanni (Solomon, 1932) on the basis of the holotype from 'coot' (= ? Podicipedidae) in Kenya. The critical analysis of the previous records of J. acanthorhyncha reveals that the host-range of this species includes T. ruficollis, Podiceps nigricollis and P. grisegena. The reliable diagnostic characters of Joyeuxilepis are re-evaluated. J. biuncinata (Joyeux & Baer, 1943), J. acanthorhyncha, J. decacantha (Fuhrmann, 1913), J. pilatus Borgarenko & Gulyaev, 1991, J. fuhrmanni, J. uralensis Gulyaev, 1989, J. decacanthoides Borgarenko & Gulyaev, 1991, J. octacantha (Rees, 1973), J. azerbaijanica (Matevosyan & Sailov, 1963) and J. fimbriata (Borgarenko, Spasskaya & Spassky, 1972) are recognised as valid species of Joyeuxilepis. A new generic diagnosis for this genus and an identification key to its constituent species are presented.

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PubMed2004

The genus Biuterina Fuhrmann, 1902 (Cestoda, Paruterinidae) in the Old World: redescriptions of three species from Palaearctic Passeriformes.

The syntypes of Biuterina passerina Fuhrmann, 1908 from Alauda arvensis and Galerida cristata (Passeriformes, Alaudidae) from an unknown locality are redescribed. B. fuhrmanni Schmelz, 1941 is redescribed on the basis of its syntypes from Emberiza aureola from China; its type-material contains, in addition to a scolex and pre-gravid and gravid fragments of Biuterina, fragments of mature proglottides from a dilepidid cestode, which were erroneously used in the original description. Specimens, which correspond morphologically to B. clerci Spasskii, 1946, from Miliaria calandra, E. citrinella and E. cirlus from Bulgaria and from E. citrinella from the Czech Republic, are studied. The synonymy of B. clerci with B. passerina is rejected; however, it is recognised as a synonym of B. fuhrmanni. Available data suggest that B. passerina is a specific parasite of birds of the family Alaudidae, while B. fuhrmanni is specific to the Emberizidae. B. collurionis Matevosyan, 1950 is considered a species inquirenda, pending confirmation of apparent differences from B. passerina and B. fuhrmanni based on further material. Biuterina cordifera Murai & Sulgostowska, 1983 is redescribed on the basis of specimens, previously identified by Rysavý (1965) as B. triangula (Krabbe, 1869), from Acrocephalus scirpaceus (Muscicapidae, Sylviinae) in the Czech Republic (new geographical record) and from Erithacus megarhynchos (Muscicapidae, Turdinae) in Bulgaria (new host and geographical records).

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PubMed2004

A taxonomic study of species of Bothriocephalus Rudolphi, 1808 (Cestoda: Pseudophyllidea) from eels in Japan: morphological and molecular evidence for the occurrence of B. claviceps (Goeze, 1782) and confirmation of the validity of B. Japonicus Yamaguti, 1934.

A taxonomic study of specimens of Bothriocephalus from eels ( Anguilla spp.) in Japan has demonstrated the occurrence of two species, B. claviceps (Goeze, 1782) and B. japonicus Yamaguti, 1934. The former species is a parasite of eels ( A. anguilla and A. rostrata ) in the Holarctic Region and was recently reported from A. marmorata in Japan. The conspecificity of tapeworms newly found in an eel ( A. ? japonica ) from Lake Biwa, central Japan, with B. claviceps has been confirmed by the great similarity of their ITS-2 gene sequences (similarity 95.3% and 95.2%). However, the sequences of worms identified as B. claviceps from A. marmorata differed considerably from those of B. claviceps from two populations of A. anguilla from Europe and the above-mentioned one from Japan (similarity 66.3%, 67.1% and 65.1 %, respectively), thus indicating that the former cestodes may have been misidentified. This assumption was confirmed by morphological evaluation of a voucher specimen from A. marmorata. The morphology of this cestode, as well as those from A. japonica from two localities in Japan (Lakes Biwa and Suwa), indicates their conspecificity with B. japonicus. The validity of this taxon has been confirmed on the basis of a re-examination of the type-specimens. The two taxa, B. japonicus and B. claviceps, differ from each other in the shape and length of the scolex (619-730 microm in B. japonicus versus 1,180-2,100 microm in B. claviceps ), the relative position of the cirro-vaginal and uterine pores (opposite each other in relation to the median line of the body in B. japonicus versus tandem or slightly offset along the median line in the latter species), and the size of the eggs (41-52 x 28-35 microm in B. japonicus versus 50-70 x 31-43 microm in B. claviceps ).

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PubMed2004

On Branchiopodataenia n. g., parasitic in gulls, and its type-species, B. Anaticapicirra n. sp. (Cestoda: Hymenolepididae).

Branchiopodataenia n. g. is established for hymenolepidid cestodes characterised by the presence of a specific morphological feature, a latch-like structure in the copulatory part of the vagina. Their life-cycles involve branchiopod crustaceans (Branchiopoda) as intermediate hosts and gulls as definitive hosts. The type-species of the genus, B. anaticapicirra n. sp. from gulls of Chukotka (Chaun lowlands) and Alaska (River Yukon, Cape Barrow), is described. It is established that B. arctowskii (Jarecka & Ostas, 1984) n. comb. (originally Hymenolepis ) has a bipolar distribution and is not endemic to the Antarctic. A description of B. arctowskii from the northern hemisphere and the principal characters of other known species of this genus, B. gvozdevi (Maksimova, 1988) n. comb. (originally Wardium ), B. haldemani (Schiller, 1951) n. comb. (originally Hymenolepis ) and B. pacifica (Spassky & Jurpalova, 1968) n. comb. (originally Wardium ), are included. A key to the species of Branchiopodataenia is also presented.

Alaska↗
PubMed2004

Redescription of Electrotaenia malopteruri (Fritsch, 1886) (Cestoda: Proteocephalidae), a parasite of Malapterurus electricus (Siluriformes: Malapteruridae) from Egypt.

The proteocephalidean cestode Electrotaenia malopteruri (Fritsch, 1886) (Proteocephalidae: Gangesiinae), the type- and only species of Electrotaenia Nybelin, 1942 and specific to the electric catfish Malapterurus electricus Gmelin (Siluriformes: Malapteruridae), is redescribed on the basis of freshly collected material from the River Nile in Egypt. The validity of Electrotaenia is confirmed and some unique characters of this genus, observed in extensive material from different host specimens from Egypt, Sudan, Sierra Leone and Nigeria are first reported or described in detail. Such details include the internal morphology of a rostellum-like apical organ which is disc-shaped with a flat or slightly concave apex, the structure of the ovary which is follicular to reticulate, the structure of the cirrus-sac, the presence of a medio-dorsal band of muscle fibres, and the morphology of the vagina and eggs.

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PubMed2004

Life-cycles of cestodes of the genus Branchiopodataenia Bondarenko & Kontrimavichus, 2004 (Cestoda: Hymenolepididae) from gulls in Chukotka.

Data are presented on the life-cycles and the postembryonal development of four species of Branchiopodataenia Bondarenko & Kontrimavichus, 2004, B. anaticapicirra Bondarenko & Kontrimavichus, 2004, B. arctowskii (Jarecka & Ostas, 1984), B. haldemani (Schiller, 1951) and B. pacifica (Spassky & Jurpalova, 1968), which are specific parasites of gulls. The investigation was carried out in Chukotka (Chaun Bay) between 1971 and 1981 under natural and experimental conditions. Branchiopod crustaceans were exclusive natural and experimental intermediate hosts of all of the species studied; this fact provided additional evidence for the erection of Branchiopodataenia. The metacestodes exhibit a pattern of postembryonal development and a typical larval form, termed a 'cercocyst', which is a modification of a cysticercoid. This modification of the metacestode does not occur in species of Wardium Mayhew, 1925, the genus with which species of Branchiopodataenia had previously been affiliated.

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PubMed2004

Aploparaksis mackoi n. sp. (Cestoda: Hymenolepididae), a parasite of the common snipe Gallinago gallinago (L.) from the Slovak Republic.

Aploparaksis mackoi n. sp. is described from a charadriiform bird, Gallinago gallinago (L.), collected from the central Carpathian Region of the Slovak Republic. The new species differs from all previously known species of Aploparaksis Clerc, 1903 by having a very large conical cirrus with a maximum length up to 1.5 times the proglottis width. The species is characterised by 10 aploparaksoid hooks, 19 microm long, with long, thin blades. The position of the vitellarium, with respect to the ovary, varies within the same strobila from median to aporal.

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PubMed2004

A new species of Rhinebothroides Mayes, Brooks & Thorson, 1981 (Cestoda: Tetraphyllidea) from the ocellate river stingray in Argentina, with amended descriptions of two other species of the genus.

A new species of the tetraphyllidean genus Rhinebothroides Mayes, Brooks & Thorson, 1981 is described from the spiral intestine of specimens of the ocellate river stingray Potamotrygon motoro (Müller & Henle) collected in the Río Colastiné, Argentina. R. campbelli n. sp. can be distinguished from its congeners particularly in worm size (up to 7 mm long), the number of segments (5-7), the number of testes per segment (26-41), the extension of the ovarian lobes and the absence of darkly-staining cells surrounding the distal end of the cirrus-sac. Comparison of tapeworms matching the original description of R. mclennanae Brooks & Amato, 1992 with the type-specimens of R. glandularis Brooks, Mayes & Thorson, 1981 showed that these are two distinct species. Consequently, R. mclenannae is considered a valid species rather than a synonym of R. glandularis, as suggested by Marques & Brooks (2003). R. mclennanae can be distinguished from R. glandularis by the morphology of the ovary, the number of medial loculi in the bothridia, the number of testes per mature segment and cirrus-sac size. It is concluded that variation in microthrix form and density may prove to be of taxonomic utility for distinguishing species of Rhinebothroides. Some comments on characters noted by Marques & Brooks (2003) in their revision of the genus are also provided, such as the absence of an external seminal vesicle in R. mclennanae and R. glandularis, the absence of microtriches in the genital atrium, intraspecific variation of bothridial shape and ovarian shape.

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PubMed2004

Anthobothrium lesteri n. sp. (Cestoda: Tetraphyllidea) in Carcharhinus melanopterus from Heron Island, Australia, with comments on its site, mode of attachment, reproductive strategy and membership of the genus.

Anthobothrium lesteri n. sp. in Carcharhinus melanopterus from Heron Island, Australia is described and figured. A combination of characters, namely the number of testes, a weakly laciniate strobila and mature proglottis which is conspicuously longer than wide distinguishes it from other species that appear to be consistent with van Beneden's original concept of Anthobothrium . The scolex and the peduncle are relatively small and frail when compared with the rest of the strobila and with the detached proglottis. A myzorhynchus is absent and the stalked, undivided, simple bothridia have thickened margins. Two circular areas of muscles, which resemble accessory suckers, occur in the centre of each bothridium. There is a distinct cephalic peduncle with spiniform blade-like microtriches followed by craspedote proglottides which have a posterior four-lobed velum. Apolysis is well developed and the oncosphere has a polar filament and a dense covering of spines. Comments are made on the site, the mode of attachment, an aspect of the reproductive strategy of the new species in relation to intestinal eversion in some sharks, and membership of the genus.

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PubMed2003

Phylogeography of the circumpolar Paranoplocephala arctica species complex (Cestoda: Anoplocephalidae) parasitizing collared lemmings (Dicrostonyx spp.).

The Paranoplocephla arctica complex (Cyclophyllidea, Anoplocephalidae), host-specific cestodes of collared lemmings Dicrostonyx, include two morphospecies P. arctica and P. alternata, whose taxonomical status now must be considered ambiguous. The genetic population structure and phylogeography of the P. arctica complex was studied from 83 individuals sampled throughout the Holarctic distribution range using 600 bp of the mitochondrial cytochrome c oxidase subunit I gene (COI). The mitochondrial DNA (mtDNA) phylogeny divides the species complex into one main Nearctic and one main Palaearctic phylogroup, corresponding to the main phylogenetic division of the hosts. In the Palearctic phylogroup, the parasite clades correspond to the host clades although the parasites from Wrangel Island form an exception as the host on this island, D. groenlandicus, belongs to the Nearctic phylogroup. In the Nearctic, northern refugia beyond the ice limit of the Pleistocene glaciations are proposed for the hosts. All reconstructions of parasite phylogeny show a genetically differentiated population structure that in the Canadian Arctic lacks strict congruence between phylogeny and geography. The parasite phylogeny does not show complete congruence with host relationships, suggesting a history of colonization and secondary patterns of dispersal from Beringia into the Canadian Arctic, an event not proposed by the host phylogenies alone.

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PubMedDate not supplied

[Hymenolepis nana var. fraterna (Cestoda: Hymenolepididae) in Leucophaea maderae (Dictyoptera: Blattidae): crossing of the intestinal wall].

Attempts to infect Leucophaea maderae by feeding them with matured proglottids of Hymenolepis nana var. fraterna, show that only a few embryos are able to go through the midgut wall. During this passage, the parasites induce in the host a cellular reaction into the epithelium and an hemocytic reaction outside. Further development does not occur and embryos cannot reach the cysticercoïd stage.

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