Abstract:
:Numerous specimens of Calydiscoides spp. from Lethrinus nebulosus and L. harak, and fewer specimens from L. lentjan, L. ravus and L. obsoletus, collected off New Caledonia, South Pacific, were examined. Three species of Calydiscoides were recognized. Calydiscoides difficilis (Yamaguti, 1953) Young, 1969 was generally the most abundant species on the five hosts. Specimens of C. difficilis were measured and compared to the type specimens (from Indonesia) and museum vouchers (from Australia and the Arabian Gulf). The morphology of the massive male copulatory organ and of haptoral sclerotized parts was similar, but specimens from the same host and from different hosts showed wide morphometric variations; it is concluded that C. difficilis has a high degree of variability, although the possibility of a species complex remains. Calydiscoides duplicostatus (Yamaguti, 1953) Young, 1969 was found on L. nebulosus, L. harak and L. lentjan; specimens were homogeneous in the three hosts and similar to the type specimens. Calydiscoides terpsichore sp. n. is described from L. nebulosus (type host) and L. harak and was uncommon in both fish. The new species, a member of the 'australis group', is characterized by its Y-shaped male copulatory organ, with the left branch bearing a trifurcated secondary branch. Lethrinus nebulosus and L. harak shared the 3 species of Calydiscoides studied here, a fact probably related with their close phylogenetic relationships. Among the 15 species of Lethrinus present in New Caledonia, 11 were examined and 9 species harboured 1-3 species of Calydiscoides each. Only 7 species of Calydiscoides were found, due to their stenoxenous specificity. Each species of Calydiscoides has 1 to 5 hosts.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Rascalou G,Justine JLdoi
10.14411/fp.2007.026subject
Has Abstractpub_date
2007-09-01 00:00:00pages
191-202issue
3eissn
0015-5683issn
1803-6465journal_volume
54pub_type
杂志文章abstract::The Capsalidae are monogeneans parasitizing 'skin', fins and gills of marine fishes. Some capsalids are pathogenic to cultivated fish and a few have caused epizootic events. It is a cosmopolitan family with broad host associations (elasmobranchs and teleosts, including sturgeons). Approximately 200 capsalid species ar...
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更新日期:1985-01-01 00:00:00
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doi:10.14411/fp.2000.046
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journal_title:Folia parasitologica
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更新日期:2003-12-01 00:00:00
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journal_title:Folia parasitologica
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journal_title:Folia parasitologica
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journal_title:Folia parasitologica
pub_type: 杂志文章,评审
doi:
更新日期:1998-01-01 00:00:00
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journal_title:Folia parasitologica
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更新日期:1996-01-01 00:00:00
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更新日期:2003-06-01 00:00:00
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journal_title:Folia parasitologica
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更新日期:2003-09-01 00:00:00
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journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2002.010
更新日期:2002-01-01 00:00:00
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journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
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journal_title:Folia parasitologica
pub_type: 杂志文章
doi:10.14411/fp.2017.021
更新日期:2017-07-10 00:00:00
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journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::One thousand three hundred seventy three fish specimens of eight different species from the vicinity of Kyiv, Ukraine, were examined for the presence of trypanosomes and 921 individuals were found to be infected. The prevalence of infection ranged from 24% in freshwater bream, Abramis brama (Linnaeus), to 100% in spin...
journal_title:Folia parasitologica
pub_type: 杂志文章
doi:
更新日期:2014-12-01 00:00:00