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Corpus Christi, TX, United States

Jaiswal N.,Allahabad University | Upadhyay S.K.,Allahabad University | Malhotra A.,Allahabad University | Malhotra A.,Emory University | And 3 more authors.

Neolebouria capoori n. sp. (Opecoelidae: Plagioporinae) is described from the whitecheek monocle bream, Scolopsis vosmeri (Bloch) (Perciformes: Nemipteridae) from the Panjim coast on the central west coast of India at Goa. The new species differs from both Neolebouria cantherhini (Li, Qiu & Zhang, 1988) as originally described from Thamnaconus modestus (Günther) (syn. Cantherines modestus Günther) and Neolebouria confusum (Overstreet, 1969) as originally described from Ocyurus chrysurus (Bloch) by having the cirrus sac surpassing the ventral sucker posteriorly in N. cantherhini and being entirely preacetabular in N. confusum compared to terminating near the midlevel of the ventral sucker in N. capoori n. sp. The new species is most similar to N. confusum, but it further differs from this species by having the vitelline fields terminating near the level of the esophageal bifurcation compared to terminating near the level of the posterior margin of the pharynx, a larger sucker ratio (1:1.7-1:2.0 compared to 1:1.4-1:1.7), a somewhat shorter cirrus sac relative to body length (160-448, representing 9-18% of the body length compared to about 367, representing 22%), and the egg of the new species has a boss at the anopercular end that is not present in N. confusum. This study represents the first report on an opecoelid from S. vosmeri. A review of the parasites reported from S. vosmeri is included. Copyright © 2014 Magnolia Press. Source

Keys to the six subfamilies, 22 genera within subfamilies and 128 species recognized within the Cyclocoelidae are provided. Lists of species in each genus are provided, along with taxonomic summaries that include type host, type locality, additional hosts, additional localities, previously proposed synonyms, and remarks for each species. The following synonymies are proposed: Cyclocoelum mutabile (Zeder, 1800)-Syn. C. microstomum (Creplin, 1929); Cyclocoelum leidyi Harrah, 1922-Syn. C. cuneatum Harrah, 1922; Cyclocoelum mehrotrai Sinha & Sahay, 1975-Syn. C. mathuri Jain, 1984; Selfcoelum allahabadi (Khan, 1935) n. comb.-Syns. Cyclocoelum agamprasadi Jain, 1983, Cyclocoelum erythropis Khan, 1935 and Cyclocoelum indicum Khan, 1935; Selfcoelum obliquum (Harrah, 1921) n. comb.-Syn. Cyclocoelum mehrii Khan, 1935; Uvitellina adelphus (Johnston, 1917)-Syn. Cyclocoelum (Uvitellina) dollfusi Tseng, 1930; Uvitellina kaniharensis (Gupta, 1958)-Syn. U. indica Siddiqi & Jairajpuri, 1962; Uvitellina simile (Stossich, 1902) n. comb.- Syn. U. magniembria Witenberg, 1923; Uvitellina vanelli (Rudolphi, 1819)-Syns. U. keri Yamaguti, 1933 and U. tageri Yamaguti, 1933; Wardianum triangulare (Harrah, 1922)-Syn. Wardianum catoptrophori Dronen, 2007; Haematotrephus limnodromi Dronen, Gardner & Jiménez, 2006-Syn. H. selfi Dronen, Gardner & Jiménez, 2008; and Hyptiasmus arcuatus (Brandes, 1892 of Stossich, 1902)-Syn. H. coelonodus Witenberg, 1923. Based on the lack of adequate descriptive information, Cyclocoelum cornu (Zeder, 1800); Cyclocoelum crenulatum (Rudolphi, 1809); Haematotrephus nigropunctatum (von Linstow, 1883) n. comb.; Haematotrephus robustus Ukoli, 1968; Hyptiasmus californicus (Wootton, 1966); and Hyptiasmus vigisi Savinov, 1960 are considered to be species inquirendae. Hyptiasmus witenbergi Tret'iakova, 1940 (described in a dissertation) is considered to be a nomen nudum. Comparative tables containing measurements, morphometric percentages and morphometric ratios for species in the family are provided and the comparative characteristics used to distinguish species in the Cyclocoelidae are discussed. © 2015 Magnolia Press. Source

Helicometra Odhner, 1902 (Digenea: Opecoelidae) is one of the largest genera within Plagioporinae Manter, 1947. All 34 nominal species possess a single polar filament on the egg, a unique, conspicuous helical uterus, and they parasitize the intestinal tract of 75 families, 172 genera, and 296 species of mostly marine piscine hosts from shallow to deep waters and from equatorial to polar latitudes. This study describes a new species of Helicometra from the cusk-eel Luciobrotula corethromycter Cohen, 1964 (Ophidiiformes: Ophidiidae) collected from 1,280 m depth in the northwestern Gulf of Mexico, and it represents the first report of a parasite from the genus Luciobrotula Smith and Radcliffe in Radcliffe, 1913. A key is presented for Helicometra, all species of which are placed into one of four groups based on oral sucker shape, cirrus-sac length, and vitelline follicle distribution. Analyses and conclusions are given for trends observed in zoogeography, life history, and host families (definitive and intermediate) of Helicometra as well as the presence of this parasite in the deep sea and in Ophidiidae Rafinesque, 1810. A prospective life cycle for the new species includes a gastropod as first intermediate host, a caridean shrimp as second intermediate host, and an ophidiid cusk-eel as a definitive host. We provide a comprehensive historical faunal review of all species of Helicometra with information presented on taxonomic status (synonymies, validity of species), definitive and intermediate hosts, infection sites, geographic localities, and museum accession numbers for deposited specimens. © 2014, Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg. Source

Blend C.K.,58 Rock Creek Dr. | Dronen N.O.,Texas A&M University | Gardner S.L.,University of Nebraska - Lincoln | Racz G.R.,University of Nebraska - Lincoln | Armstrong H.W.,Texas A&M University

Tellervotrema Gibson & Bray, 1982 (Digenea: Opecoelidae) was erected for Podocotyle-like species that possess a symmetrical pair of isolated groups of vitelline follicles in the posterior forebody, lack them dorsal to the caeca and parasitize archybenthal macrourid fishes. Tellervotrema armstrongi Gibson & Bray, 1982 is redescribed from the type host, the common Atlantic grenadier, Nezumia aequalis (Günther), N. cyrano Marshall & Iwamoto, and from an unidentified macrourid collected from the northern Gulf of Mexico. Tellervotrema beringi (Mamaev, 1965) is redescribed from the giant grenadier, Albatrossia pectoralis (Gilbert), and Coryphaenoides sp. obtained from off Oregon. The following six features are suggested to distinguish T. armstrongi and T. beringi: egg size; position of the genital pore; posterior extent of the cirrus-sac relative to the ventral sucker; testes volume relative to hindbody size; anterior extent of the paired vitelline groups in the forebody; and geographic locality. The generic diagnosis of Tellervotrema is amended o include circumcaecal vitelline follicles, and the presence of the vitelline gap itself was found to be a more consistent diagnostic generic character than the location of the resulting pair of distinct, isolated groups of vitelline follicles created by the gap. A neotype and paraneotypes are designated for T. beringi. The following new host and locality records are established: first original report of T. armstrongi from N. cyrano; first report of a member of Tellervotrema from the giant grenadier, A. pectoralis; and the waters off Oregon are a new locality record for Tellervotrema, a genus in the North Pacific Ocean known only from the Bering Sea and off Japan. A comprehensive listing of all parasites previously reported from the four macrourid species examined herein is given and intermediate hosts are postulated through which species of Tellervotrema may complete their life cycles in the deep. Copyright © 2012·Magnolia Press. Source

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