Helminth and arthropod parasites of the brown pelican, Pelecanus occidentalis , in Puerto Rico, with a compilation of all metazoan parasites reported from this host in the Western Hemisphere

  title={Helminth and arthropod parasites of the brown pelican, Pelecanus occidentalis , in Puerto Rico, with a compilation of all metazoan parasites reported from this host in the Western Hemisphere},
  author={William G. Dyer and Ernest H. Williams Jr and Antonio A. Mignucci-Giannoni and Nilda M. Jim{\'e}nez-Marrero and Lucy Bunkley-Williams and Debra P. Moore and Danny B. Pence},
  journal={Avian Pathology},
  pages={441 - 448}
Seven species of helminths and six species of arthropods are reported from 23 of 40 brown pelicans, Pelecanus occidentalis , collected from various localities in Puerto Rico. Helminth parasites include three nematodes ( Contracaecum multipapillatum , Contracaecum mexicanum , and Eustrongylides sp.), three trematodes ( Galactosomum darbyi , Mesostephanus appendiculatoides , and Ribeiroia ondatrae ), and one cestode ( Tetrabothrium sulae ). Arthropod parasites include Colpocephalum occidentalis… 

Endohelminths from the Brown Pelican, Pelecanus occidentalis, and the American White Pelican, Pelecanus erythrorhynchus, from Galveston Bay, Texas, U.S.A., and Checklist of Pelican Parasites

Hypotheses for the recent infection of pelicans with species of Bursacetabulus and Bursatintinnabulus along the Gulf coast are discussed.

Parasitic Helminths of the American White Pelican, Pelecanus erythrorhynchos, from Florida, U.S.A

Thirty-three species of helminths were recovered from 29 American white pelicans, Pelecanus erythrorhynchos, collected in Florida, U.S.A., between 1982 and 2001, and three species of Contracaecum were the most prevalent and abundant.

Parasites of the digestive tract in free‐ranging birds in Greece

A total of 136 digestive tracts and faecal samples were collected from free‐ranging birds originating from different parts of Greece and were evaluated for the presence of gastrointestinal parasites, finding 6 protozoan, 11 trematode, 5 cestode, 19 nematode and 7 acanthocephalan species found.

Two new species of Contracaecum Railliet & Henry, 1912 (Nematoda: Anisakidae), C. fagerholmi n. sp. and C. rudolphii F from the brown pelican Pelecanus occidentalis in the northern Gulf of Mexico

Molecular data led to the detection of two new species and the recovery of a third species, C. bioccai, from the brown pelican, which confirms its occurrence in this host and extends its known geographical distribution.

Contracaecum gibsoni n. sp. and C. overstreeti n. sp. (Nematoda: Anisakidae) from the Dalmatian pelican Pelecanus crispus (L.) in Greek waters: genetic and morphological evidence

Morphological analysis and the differential diagnosis of genetically recognised male specimens of C. gibsoni and C. overstreeti enabled the detection of differences between the two species in a number of characters, including spicule length and the shape of its tip, and the arrangement of the proximal and distal papillae on the male tail.

Helminth Parasites of the Blue-Footed Booby on Isla Isabel, México

In male boobies, a significant negative correlation was found between abundance of R. thapari and host body condition, and Species accumulation curves suggest these 8 parasite species comprise the total helminth fauna of this population of boobie.

Parasitic helminthes — probable cause of death of birds

Parasitic helminths were the probable cause of death of 41 passeriform birds caught in the net during the spring and autumn ringing (1986–2010) and all the helmniths were heteroxenous, with development cycle involving intermediate hosts (invertebrates which are part of the birds’ diet.


A new species of Petasiger inhabits Pelecanus occidentalis, from the Area de Conservación Guanacaste, Costa Rica, by having 19 circumoral spines and vitelline follicles confluent between the ventral sucker and gonads.

Genetic characterization of members of the genus Contracaecum (Nematoda: Anisakidae) from fish-eating birds from west-central Florida, USA, with evidence of new species

The rrnS data indicate that these specimens are clearly genetically different from the morphologically most closely related species, i.e. C. rudolphii and C. microcephalum, and could represent a new species.

Parasites of the American White Pelican

Feather mites, lice, and diplostomoid digeneans serve as good parasites to indicate phylogenetic relationships among different pelican species as well as relationships among the Pelecanidae and other families such as the Sulidae.



A revision of the subfamily haplorchinae looss, 1899 (Trematoda: Heterophyidae). III — Genera Cercarioides and Condylocotyla n.g.

C. argentatus from the Bay of Marseille, France, differs from other haplorchine genera in its combination of undivided body, absence of gonotyl, genital pore posterior to ventral sucker, discrete lateral pocket with pilose lining, sucker-like ventrals armed with spines and sclerotized knobs, and thin-walled seminal vesicle.

New Records of Ticks from the Lesser Antilles

This study is based primarily on ticks collected by Dr. P. WAGENAAR HUMMELINCK (Zoologisch Laboratorium, Utrecht) and associates. A few additional collections were received from Dr. K. E. HYLAND

Pholeter anterouterus Fischthal & Nasir, 1974 (Digenea: Opisthorchiidae) redescribed, together with remarks on the genera Pholeter Odhner, 1914 and Phocitrema Goto & Ozaki, 1930 and their relationship to the centrocestine heterophyids

The genus Photoleter Odhner, 1914 is emended and compared with Phocitrema Goto & Ozaki, 1930 and both genera are compared with members of, and as a result transferred from the family Opisthorchiidae Looss to, the subfamily Centrocestinae Looss, 1899.

A second list of parasites from marine and coastal animals of Florida.

Two very dissimilar specimens were collected from this host; the pars prostatica in the smaller specimen was proportionately longer than that of the larger specimen; this difference was found also to be true with the testes.

Ornithodoros (Alectorobius) capensis Neumann (Acari: Ixodoidea: Argasidae), a parasite of seabirds, established along the southeastern seacoast of the United States.

An ectoparasite of seabirds found circumglobally in the tropics and subtropics, has become established along the southeastern seacoast of the United States and has been found feeding primarily on brown pelicans, but also on the laughing gull and the American oystercatcher.

A revision of the subfamily Haplorchinae Looss, 1899 (Trematoda: Heterophyidae). II. Genus Galactosomum.

  • J. Pearson
  • Biology
    Philosophical transactions of the Royal Society of London. Series B, Biological sciences
  • 1973
It is inferred from the multiplicity of structure in the terminal genitalia of digenetic trematodes in general, and heterophyids in particular, that they are cross fertilizing despite being hermaphroditic, and it is suggested that variations in terminals may constitute an important mechanical element in isolating mechanisms that separate closely related species.

Four new species of trematode worms from the muskrat, Ondatra zibethica, with a key to the trematode parasites of the muskrat

Psilostomum is a large ovoid organ found in the region of the anterior testis, flattened dorsoventrally, and spines distributed over the entire body in alternate transverse rows are found.

Parasites of Puerto Rican freshwater sport fishes

The grubs and flukes known from freshwater fishes in Puerto Rico are listed in the classification below, but separate the species accounts by considering all of the larval grubs first (page 49), and the adult flukes second (page 55).


Wild-captured nestling cormorants held in captivity until maturity lost their nematode infections in three months suggesting that Contracaecum has a short life span.

The Ecology of Tick Parasitism on Densely Nesting Peruvian Seabirds

A review of the avian and medical entomological literature indicates that ticks and other ectoparasites may be strong determinants of nesting success and of nest structure and duration of use.