Genetic characterization and phylogenetic relationships of Phyllodistomum parasites in Indian subcontinent: insights from freshwater fish and shrimp hosts.

Phyllodistomum is the large digenean group of fish parasites, with 25 species described so far in the Indian subcontinent. Here, we redescribed two adult species of Phyllodistomum (P. srivastava Rai 1964 and P.

Characterization of Clinostomum (Digenea: Clinostomidae) spp. in India.

Platyhelminths belonging to the family Clinostomidae (Digenea) have a worldwide distribution and are known to infect piscivorous birds through their intermediate hosts, usually fish species. In the present study, clinostome metacercariae were collected from fish hosts, including Channa punctata (Bloch 1793) (n = 25) and Trichogaster fasciata Bloch and Schneider 1801 (n = 25), from a freshwater system in India. The experimental infection of cattle egrets, Ardea (Bubulcus) ibis Linnaeus 1758, with some of the live metacercariae found in the present study was successful.

Morphological and molecular characterization of six Indian Tetracotyle type metacercariae (Digenea: Strigeidae Railliet, 1919), using ribosomal and mitochondrial DNA.

Strigeids have a cup-shaped fore body, containing a holdfast organ with two lobes and hind body. The species diversity of strigeids remains incomplete, especially in the Indian sub-continent. Here, we described six Tetracotyle type metacercariae (T.

Morphological and molecular characterisation of three Indian Neascus-type metacercariae (Digenea: Diplostomidae).

Diplostomid digeneans are important parasites whose larval stages infect freshwater snails and fish as first and second intermediate hosts respectively. Diplostomid digeneans as adults are parasitic in many fish-eating birds and mammals. Our understanding of the species diversity of diplostomid digeneans remains incomplete, especially in the Indian sub-continent.

Threading: A novel insilico indagation method for genetic characterization of some diplostomoid metacercariae (Digenea:Diplostomidae Poirier, 1886).

The protein encoding zone of Mitochondrial DNA region (inherited from single lineage) seems most suitable and effective for taxonomic, systematic, ecological, evolutionary, DNA barcoding, cryptic species and population studies, exploiting nucleotide/amino acid datasets (1D/2D/3D conformational level). Nowadays, expeditious computerized methods are in trend for analyzing genetic material to demonstrate variations at various levels of protein structures. Structural proteomics have implemented here for genetic identification, differentiation and relationship of species from information rich data of mt COI gene of the family Diplostomidae with inclusion of molecular tools.

A new species of an interesting amphistome Pseudodiplodiscoides Murty, 1970 in Bellamya bengalensis Lamarck, 1882 from water bodies near district Barabanki, U.P.

A new species of an interesting trematode genus Pseudodiplodiscoides (Murty, Zool Anz 185:312-317, 1970), is described from the gut of the snail Bellamya bengalensis Lamarck, 1882, collected from the fresh water bodies near district Barabanki, U.P. After careful examination of several freshly collected specimens, the genus is validated and another species described under the genus Diplodiscus viz.

A taxonomic revision of some previously described species of monogenoideans found on Indian Siluriform fishes.

A Taxonomic revision of. Bychowskyella bagariusi Sharma, 1983 and Bychowskyella singhi Rajeshwari & Kulkarni, 1983 Jain, 1952 found on Indian Siluriform fishes is being done in the present work. These species were considered as species inquirenda or nomen nudum, (Lim et al.

One known and an unknown species of the genus Thaparocleidus Jain, 1952, infecting Sperata aor (Hamilton, 1822): comparison with species from China, on molecular basis.

Sperata aor commonly called as long- whiskered cat fish or "Bada Tengan" in local fish markets harboured one new and one previously known species of genus Thaparocleidus Jain, 1952, along with two species of Cornudiscoides Kulkarni, 1969, infesting gills. Thaparocleidus aori (Rizvi, 1971) Lim, 1996, was earlier described by Rizvi therefore was briefly recorded in the present study, except the egg. The newly found species Thaparocleidus susanae n.

Microhabitat distribution of some monogenoideans, parasitizing the gills of Wallago attu (Bl. and Sch., 1801) and their seasonal variation.

The parasitic microhabitat distribution of the monogenoideans Thaparocleidus wallagonoius Jain, 1952, Mizelleus indicus Jain, 1957and T. gomtius Jain, 1957 parasitizing the gills of a fresh-water demersal Wallago attu and their seasonal variations were investigated in the present study. The microhabitat preferences of these species were observed.

A redescription of Sundanonchus behuri (Agrawal & Singh, 1982) n. comb. (Monogenoidea: Dactylogyridea: Sundanonchidae) from the gills of the freshwater Gangetic leaffish, Nandus nandus (Perciformes: Nandidae) in India.

Urocleidus behuri [Agrawal N., Singh H.S.

Discriminant analysis: A supportive tool for monogenoidean taxonomy.

Data on the measurements of haptoral parts of 47 parasite species of Bychowskyella (1), Cornudiscoides (2) and Thaparocleidus (3), found on Indian freshwater catfish, were gathered from previously reported studies. Based on six morphometric variables concerning haptors, these species were subjected to discriminant analysis in order to more accurately distinguish their generic placement. This paper describes a comparative study of several classification models.

The status of Quadriacanthus Paperna, 1961 and Anacornuatus Dubey et al., 1991 (Monogenoidea: Dactylogyridae) with redescription of Q. kobiensis Ha Ky, 1968, new geographical records for Q. bagrae Paperna, 1979 and Q. clariadis Paperna, 1961 from India and a note on speciation in Monogenoidea.

Quadriacanthus Paperna, 1961 is revised and emended. Q. kobiensis Ha Ky, 1968 is redescribed from Clarias batrachus, and Q.

Monogeneans from the gills of glassfishes (Teleostei: Perciformes: Ambassidae) in India, with the proposal of Chandacleidus n. g. (Monogenea: Dactylogyridae).

Chandacleidus n. g. (Monogenea, Dactylogyridae) is proposed to include three species collected from the gills of Indian glassfishes (Ambassidae): Chandacleidus recurvatus (Jain, 1961) n.

Spicocleidus namae n. g., n. sp. (Monogenea: Dactylogyridae) on Chanda nama (Hamilton) from Lucknow, India.

Spicocleidus n. g. is proposed for S.

Monogenoids from the gills of spiny eels (Teleostei: Mastacembelidae) in India and Iraq, proposal of Mastacembelocleidus gen. n., and status of the Indian species of Actinocleidus, Urocleidus and Haplocleidus (Monogenoidea: Dactylogyridae).

Mastacembelocleidus gen. n. (Monogenoidea: Dactylogyridae) is proposed to include two species collected and redescribed from spiny eels (Mastacembelidae) in India and Iraq: Mastacembelocleidus bam (Tripathi, 1959) comb.

Redescription of some Indian species of Thaparocleidus Jain, 1952 (Monogenea), with aspects of the developmental biology and mode of attachment of T. pusillus (Gusev, 1976).

Thaparocleidus wallagonius Jain, 1952, the type-species of the genus, is redescribed from the type-host and locality. T. gomtius (Jain, 1952), T.