58 Rock Creek Dr.

Corpus Christi, TX, United States

58 Rock Creek Dr.

Corpus Christi, TX, United States
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Blend C.K.,58 Rock Creek Dr. | Dronen N.O.,Texas A&M University | Racz G.R.,University of Nebraska - Lincoln | Gardner S.L.,University of Nebraska - Lincoln
Acta Parasitologica | Year: 2017

Pseudopecoelus mccauleyi n. Sp. (Opecoelidae: Opecoelinae) is described from the intestine of the bigfin eelpout, Lycodes cortezianus (Gilbert, 1890) (Perciformes: Zoarcidae), collected at 200-800 m depths in the Northeastern Pacific Ocean off Oregon and Vancouver Island, British Columbia. The new species is distinguished by possessing a unique combination of the following diagnostic characters: vitelline fields that extend to the posterior margin of the ventral sucker; a slender, tubular and sinuous seminal vesicle that extends some distance into the hindbody; an unspecialized, protuberant ventral sucker; a genital pore at pharynx level; lobed to deeply multilobed testes; a lobed ovary; and an egg size of 68-80 μm × 30-46 μm. A single specimen of Podocotyle Dujardin, 1845 (Digenea: Plagioporinae) is also described from the intestine of an individual Coryphaenoides sp. (Gadiformes: Macrouridae) collected at 2,800 m depth off Oregon. A listing of parasites from the bigfin eelpout as well as observations of parasite diversity within relevant hosts are offered, new host and locality records are noted, and a brief discussion of Pseudopecoelus von Wicklen, 1946 in the deep sea is presented taking note of the low level of host specificity recorded (i.e. Spp. of Pseudopecoelus are now known to parasitize deep-water fish from at least 20 piscine families). A new dichotomous key to the 39 recognized species of Pseudopecoelus is introduced. © 2017 W. Stefański Institute of Parasitology, PAS.


Podocotyle bathyhelminthos n. sp. (Opecoelidae: Plagioporinae) is described from the cusk-eel, Luciobrotula corethromycter Cohen, 1964 (Ophidiiformes: Ophidiidae), collected at depths of 622-1,280 m in the northern Gulf of Mexico and Caribbean Sea off Colombia. The new species is distinguished by possessing a combination of the following features: an elongate oval body shape, a sucker width ratio of 1:1.4-1.9, deeply lobed and irregularly-shaped testes, a cirrus-sac that extends just in to the hindbody, a trilobed ovary and vitellarium that extend to the ventral sucker level. Several unique features in P. bathyhelminthos n. sp. were not present in all, or almost all, recognized species of Podocotyle including a conspicuous deep cleft at the posterior end of the worm, a small transverse ridge on the ventral surface immediately anterior to the ventral sucker, uterine loops extending ventral to the caeca and, at times, lateral to the caeca, a thick-walled metraterm extending 1/3 to 1/2 the length of the cirrus-sac and P. bathyhelminthos n. sp. parasitizes a deep water piscine host. Podocotyle etheostomae Aliff, 1973 is declared a nomen nudum. A brief discussion of Podocotyle Dujardin, 1845 in deep waters is presented, and a gastropod, caridean shrimp and cusk-eel are hypothesized as hosts in the life cycle of P. bathyhelminthos n. sp. in the deep sea. © 2015 W. Stefański Institute of Parasitology, PAS.


Dronen N.O.,Texas A&M University | Blend C.K.,58 Rock Creek Dr. | Ostrowski de Nunez M.C.,University of Buenos Aires | Malhotra S.K.,Allahabad University | Jaiswal N.,Allahabad University
Systematic Parasitology | Year: 2014

Three keys to the species of Neolebouria Gibson, 1976, representing three body types, are provided based on the location of the genital pore relative to the intestinal bifurcation. These are: the lanceolata body type, where the genital pore is clearly prebifurcal; the diacopae body type, where the genital pore is located at or near the level of the intestinal bifurcation; and the maorum body type, where the genital pore is clearly postbifurcal. Fifteen species were assigned to the lanceolata body type; eight species to the diacopae body type; and four species to the maorum body type. Neolebouria truncata (Linton, 1940) is redescribed and N. georgiensis Gibson, 1976 is reinstated as a valid species. Neither N. georgiensis, nor N. antarctica Szidat & Graefe, 1967 (syn. Crassicutis antarcticus Szidat & Graefe, 1967), as described by Zdzitowiecki et al. (1993), represent N. antarctica, as originally described, and N. georgiensis and N. antarctica, as described by Zdzitowiecki et al. (1993), may be conspecific. © 2014 Springer Science+Business Media Dordrecht (outside the USA).


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.


Jaiswal N.,Allahabad University | Upadhyay S.K.,Allahabad University | Malhotra A.,Allahabad University | Malhotra A.,Emory University | And 3 more authors.
Zootaxa | Year: 2014

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.


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.


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
Zootaxa | Year: 2012

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.


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 & Jimnez, 2006-Syn. H. selfi Dronen, Gardner & Jimnez, 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 Tretiakova, 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.

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