Abstract：
:Margaritaella gracilis gen. n. et sp. n. (Proteocephalidea: Proteocephalinae) found in the intestine of Callichthys callichthys (Linnaeus) from the Paraná River basin is described. The new genus is placed in the Proteocephalinae because of the medullary position of the genital organs. It differs from all known genera included in the Proteocephalinae by the following combination of characters: 1) scolex with a conspicuous cluster of drop-shaped gland cells posterior to suckers; 2) strobila with a low number of proglottides, all much longer than wide; 3) testes arranged in one field, composed of two parallel rows of testes separated by the uterus; 4) ovary delicate, H-shaped, with branches slender and deeply folliculate at the edges, located at 25-35% from the posterior end; 5) uterus largely extended posterior to the ovary but not reaching the end of proglottis; and 6) vitelline follicles in two narrow lateral bands, largely extended posterior to the ovary. Scanning electron microscopy revealed three types of microtriches on the tegument surface: acicular and capiliform filitriches and gladiate spinitriches. The relative size of the ovary, a character recently used in the systematics of the proteocephalidean cestodes, was calculated for the new species and compared with other species of the group. M. gracilis is the first record of a proteocephalidean cestode parasitizing a callichthyid catfish.
journal_name
Folia Parasitol (Praha)journal_title
Folia parasitologicaauthors
Arredondo NJ,Gil de Pertierra AAdoi
10.14411/fp.2012.015subject
Has Abstractpub_date
2012-06-01 00:00:00pages
99-106issue
2eissn
0015-5683issn
1803-6465journal_volume
59pub_type
杂志文章abstract：:In the course of the study "Toxoplasmosis and Prematurity" 330 blood samples from twins were examined. Our findings in a series of 21 premature twins (maternal sera were also examined) are reported in this paper. Toxoplasma antibodies were detected by the Sabin-Feldman test and specific IgM antibodies by the Remington...
journal_title：Folia parasitologica
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更新日期：1986-01-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：1977-01-01 00:00:00
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journal_title：Folia parasitologica
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journal_title：Folia parasitologica
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更新日期：1977-01-01 00:00:00
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journal_title：Folia parasitologica
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journal_title：Folia parasitologica
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更新日期：2014-12-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：1987-01-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：1978-01-01 00:00:00
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更新日期：2000-01-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章,评审
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更新日期：2005-05-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章,评审
doi：10.14411/fp.2004.016
更新日期：2004-06-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
doi：10.14411/fp.2001.045
更新日期：2001-01-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1982-01-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：2010-11-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1985-01-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：2015-01-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
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更新日期：2016-06-13 00:00:00
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journal_title：Folia parasitologica
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doi：
更新日期：1991-01-01 00:00:00
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journal_title：Folia parasitologica
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doi：
更新日期：1993-01-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
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更新日期：2016-09-26 00:00:00
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journal_title：Folia parasitologica
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doi：
更新日期：1992-01-01 00:00:00
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journal_title：Folia parasitologica
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更新日期：2005-09-01 00:00:00
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journal_title：Folia parasitologica
pub_type： 杂志文章
doi：
更新日期：1993-01-01 00:00:00
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journal_title：Folia parasitologica
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journal_title：Folia parasitologica
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doi：
更新日期：2001-01-01 00:00:00
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journal_title：Folia parasitologica
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doi：10.14411/fp.2003.041
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：
更新日期：1984-01-01 00:00:00
