The following species are described, figured and/or recorded from regions of the southern Indian Ocean: Dinurus longisinus from Coryphaena hippurus, Cape Province and Western Australia and immature in Carangoides gymnostethoides, Western Australia; Ectenurus trachuri from Trachurus declivis, Tasmania, Erilepturus tiegsi from Platycephalus endrachtensis, Pomatomus saltator and Arripis georgianus, Western Australia and Sphyraena novaehollandiae, Tasmania; Tubulovesicula angusticauda (with eight new synonyms) from Trachichthodes gerrardi, South Australia and Gymnothorax woodwardi, Saurida undosquamis and Argyrops spinifer, Western Australia; Elytrophalloides oatesi from Meuschenia freycineti and Aldrichetta forsteri, South Australia; Elytrophalloides humerus n. sp. from Trachinotus botla, Natal; Lecithocladium angustiovum (with four new synonyms) from Rastrelliger kanagurta, Natal; Glomericirrus amadai from Hoplostethus atlanticus, Tasmania; Plerurus digitatus (with 17 new synonyms) from Euthynnus affinis, Scomberomorus commerson, Thunnus albacares, Scomberoides commersonianus, Alectis ciliaris, Pomatomus saltator, Saurida undosquamis, Rachycentron canadum, Natal and Lichia amia and Pomatomus saltator, Cape Province and Carangoides gymnostethoides, Western Australia; Synapto-bothrium sp. from Pomatomus saltator, Western Australia.

Hemiuridae (Digenea) from marine fishes of the southern Indian Ocean: Dinurinae, Elytrophallinae, Glomericirrinae and Plerurinae.

Digenetic trematodes of Indian marine fishes. , Digenetic trematodes of Indian marine fishes. , کتابخانه‌های دانشگاه کردستان

Digenetic Trematodes of Indian Marine Fishes

Nine species of digenetic trematodes are reported: Lintonium vibex (LINTON, 1900) STUNKARD et NIGRELLI, 1930 from Lagocephalus lunaris (Tetraodontidae), Complexobursa vjetnamensis OSHMARIN et MAMAEV, 1963 from Terapon theraps (Teraponidae); Monascus filiformis (RUDOLPHI, 1819) LOOSS, 1907 (new synonyms: M. americanus AMATO, 1982, M. mediolongiusculus DING, 1993) from Selaroides leptolepis (Carangidae); Tergestia pauca FREITAS et KOHN, 1965 from Alepes djedaba (Carangidae); Transverstotrema licinum MANTER 1970 from Diplodus noct (Sparidae); Treptodemus latus MANTER, 1961 from Hemiramphus marginatus (Hemiramphidae); Prosogonotrema bilabiatum PÉREZ VIGUERAS, 1940 from Epinephelus areolatus (Serranidae); Hexangium sigani GOTO et OZAKI, 1929 from Siganus canaliculatus (Siganidae) and Diphterostomum brusinae (STOSSICH, 1899) STOSSICH, 1903 from Argyrops spinifer (Sparidae). All those species except Tergestia pauca and Hexangium sigani represent new geographic records.

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Digenetic trematodes from marine fishes off the coast of kuwait, arabian gulf: fellodistomidae and some smaller families, new host and geographic records

~~~\:All~~~ J ~.)l~l~l.,.,~ 4J~J ~ ~ ~al:z..Q.• J ~~) ~ "":!~L. ..J.>-£:! ~ d~~~ &o d ,:iC. ~~ ':F,>-All ~~ ~ • • • ~ ~~~~ ~"' ~~ 0 1~..111 0"41 ~ t,.ull (S.l-o ~411 ~ .u, 0 1~..111 dt eli~~~ ABSTRACT Biodiversity of the fish fauna in the Arabian Gulf is remarkable with more than 450 species known to date in this offshoot from the Indian Ocean. The present status of our knowledge on helminth parasites of fishes in the Arabian Gulf is reviewed in the light of the results of a recent investigation on fishes caught from Qatari waters. Biodiversity of digenetic trematodes and cestodes at the generic level in both bony and cartilaginous fishes of the Arabian Gulf is more remarkable. So far 36 genera of digenetic trematodes have been recorded from 61 species of bony fishes. Infections with one genus of digenetic trematodes are known from 26 species of fish. Infections with two genera of these parasites are reported from 16 species of fish hosts while three genera of digeneans occur in II species of fish. Four- ten genera of digenetic trematodes are reported from another 8 species of fish in the Gulf. On the other hand, 14 species of cartilaginous fishes have infections with 9 genera of adult cestodes, distributed throughout the cestode orders Diphyllidea, Tetraphyllidea and Lecanicephallidea, in addition to some unidentified trypanorhynchans. Variations in the prevalence and the generic diversity of digenetic trematodes and cestodes in fishes of the Arabian Gulf are presented together with a discussion on certain aspects of the relationships between these helminths with their respective fish hosts.

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Biodiversity Of Helminth Parasites Of Fishes In The Arabian Gulf, With Special Reference To Digenetic Trematodes And Cestodes

Examination of the humpback red snapper, Lutjanus gibbus (Perciformes: Lutjanidae), from Lizard Island off the Great Barrier Reef and Rasdhoo Atoll, Maldives revealed the presence of a new species of Lobosorchis (Digenea: Cryptogonimidae), L. polygongylus n. sp. Lobosorchis polygongylus n. sp. is distinguished from the type- and only other species, L. tibaldiae by the combination of body size, oral spine number (60–81 in L. polygongylus, 47–56 in L. tibaldiae) and number of testes (13–25 in L. polygongylus, 9 in L. tibaldiae). Bayesian inference analysis using data from the internal transcribed spacers 1 and 2 (ITS1 and ITS2), 5.8S and the large subunit (LSU) nuclear ribosomal DNA of L. polygongylus, L. tibaldiae and species of Beluesca, Caulanus, Chelediadema, Neometadena, Latuterus, Retrovarium and Siphoderina was performed to explore phylogenetic relationships of species of Lobosorchis with other cryptogonimid taxa. Despite the significant morphological differences between Lobosorchis polygongylus and L. tibaldiae, these two species differed consistently by only 5 base pairs (bp) over the entire ITS region (3 bp in ITS1, 0 bp in 5.8S and 2 bp in ITS2) and 1 bp in the LSU rDNA regions examined. The ITS2 rDNA region was sequenced from metacercariae obtained from the fins, flesh or body cavities of a number of fishes belonging to the Blenniidae, Pomacentridae and Tetraodontidae and analysed using minimum evolution analysis with L. polygongylus and L. tibaldiae. This revealed the presence of two additional genotypes (putative Lobosorchis sp. A and B), which consistently differed from L. polygongylus by 1 and 4 bp, L. tibaldiae by 1 and 4 bp and from each other by 3 bp over the ITS2 dataset. Although these genetic differences are relatively small, when evaluated in light of the differences observed between L. polygongylus and L. tibaldiae (which are morphologically quite distinct) and differences seen in other congeneric cryptogonimid taxa, the ITS2 rDNA data alone suggest that at least two more species of Lobosorchis are present at Lizard Island. These data also suggest that the ITS2 rDNA region alone is suitable for resolving operational taxonomic units (OTUs) at the species level within the Cryptogonimidae based on what was observed in this and other cryptogonimid systems. A morphological description of metacercariae of L. tibaldiae obtained from two species of Pomacentridae at Heron Island, off the Great Barrier Reef is also provided.

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Morphological disparity despite genetic similarity; new species of Lobosorchis Miller & Cribb, 2005 (Digenea: Cryptogonimidae) from the Great Barrier Reef and the Maldives

Two species of monorchiids are described from marine fishes of the Kuwaiti coast of the Arabian Gulf: Proctotrematoides kuwaiti sp. n. from Synaptura orientalis and Pseudorhombus arsius differs from all others in the genus by the absenc e of a prepharynx and esophagu s and by the arrangemen t and position of the vitelline follicles. Opisthodiplomonorchis elongatus Madhavi, 1974, is reported from Polydactylus sextarius and Plectorhynchus sp., both new locality records and the latter a new host record. Opisthodiplomonorchis differs from all monorchii d gener a with diagonal or tandem testes by the following combination of characteristics : vitellaria in 2 lateral groups of preand postovarian follicles, multilobed ovary, tandem testes at the posterior extremity, and unipartite seminal vesicle and terminal organ. Keys to the species of Proctotrematoides and monorchiids with 2 testes are included. Pseudomonorcheid.es Zhukov, 1983, nee Pseudomonorcheides Wang, 1982, is renamed Zlmkovtrema.

O. Sey

Papers

Digenetic trematodes of marine fishes from the Kuwaiti coast of the Arabian Gulf: family Monorchiidae Odhner, 1911.