ASTIOTREMA BIRMANII N.SP. (DIGENEA: PLAGIORCHIIDAE) IN FROG (RANA TIGRINA DAUD.) FROM KARACHI, PAKISTAN

Depending on the assessment and significance of various criteria for the delineation of species in the genus Astiotrema many species were reduced to synonyms. [...]no consensus has been established for either the species composition of Astiotrema belonging to the family Plagiorchiidae Luhe, 1901. Lo...

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Bibliographic Details
Published inFUUAST jounral of biology Vol. 11; no. 1; pp. 17 - 21
Main Authors Khan, Aly, Gul-E-Lala, Ghazi, Rafia Rehana, Khatoon, Nasira, Waheed, Samina, Khan, M S
Format Journal Article
LanguageEnglish
Published Karachi Federal Urdu University of Arts, Science and Technology 01.06.2021
Subjects
Acetabulum
Esophagus
Frogs
Life history
Ovaries
Parasites
Species composition
Testes
Uterus
Pakistan
Karachi Pakistan
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Summary:Depending on the assessment and significance of various criteria for the delineation of species in the genus Astiotrema many species were reduced to synonyms. [...]no consensus has been established for either the species composition of Astiotrema belonging to the family Plagiorchiidae Luhe, 1901. Looss (1900) attributed cirrus pouch large, reaching to ovary, genital pore preacetabular, vitellaria terminating at level of anterior or posterior testis as the main characters of the genus.Thus we should rely on adult morphological characters and ecology with some more study on those groups whose life history is unknown. A. trituri Grabda, 1959 being the first species of the genus recorded from amphibian differ from the present specimens in having testes posterior to caecal endings; the present specimens differ from A.turneri Bray et al., 2006 in which vitellaria start anterior to intestinal bifurcation, ovary round and acetabulum in anterior half of the body and the position of cirrus pouch from A.mehrai Tiwari, 1958 which have equal size of oral sucker and acetabulum; from A.giganticum Tiwari, 1958 which have more deeply lobed testis at the anterior face. [...]the present specimens are considered new to science and named A. birmanii n. sp. in
ISSN:2222-0356
2616-8758