Eucotyle castanea n.sp. and other trematodes of the family Eucotylidae from birds in British Columbia

1971 ◽  
Vol 49 (7) ◽  
pp. 1053-1058 ◽  
Author(s):  
Doris N. Jensen

Four species of trematodes of the family Eucotylidae were collected from birds in British Columbia. Eucotyle castanea n.sp. from Melanitta deglandi (Bonaparte) differs from other members of the genus mainly by the presence, throughout its parenchyma, of a reddish-brown pigment. E. cohni Skrjabin, 1924 was recovered from Podiceps grisegena holböllii Reinhardt, Clangula hyemalis (Linnaeus), Bucephala clanguia (Linneaus), and Padiceps aurittis (Linnaeus). E. warreni Schell, 1967 was collected from Bucephala islandica (Gmelin) and Tanaisia fedtschenkoi Skrjabin, 1924 from Charadrius vociferus Linnaeus. This is the first record of the occurrence of these parasite species in Canada.The structure of the cirrus sac in E. castanea and E. cohni and the excretory system of the latter species are described. The relationship between Eucotyle and Tanaisia is discussed and a key to the species of Eucotyle is included.


2018 ◽  
Vol 33 (1) ◽  
pp. 83
Author(s):  
Rodolfo Gozalo ◽  
Mª Eugenia Dies-Álvarez ◽  
José Antonio Gámez VIintaned ◽  
Juan B. Chirivella ◽  
Eladio Liñan

 The genus Naraoia Walcott, 1912, a Burgess Shale-type fossil known from the lower and middle Cambrian of British Columbia (Canada), Idaho and Utah (USA), as well as from Yunnan and Guizhou provinces (China), is now reported from the middle Cambrian of Murero (Zaragoza, Spain), which is the first record in the Acadobaltic province. The only fragmented specimen found is determined as Naraoia sp., its age being Pardailhania multispinosa Zone (Drumian Stage). This new datum reinforces the hypothesis of the existence of a cosmopolitan faunal substrate in early Cambrian times, which is to some extent refl ected in the mid Cambrian by faunal groups of low evolutionary potential as the family Naraoiidae and other soft-bodied fossil taxa.



1960 ◽  
Vol 92 (8) ◽  
pp. 634-636
Author(s):  
C. V. G. Morgan

Bryobia lagodechiana Reck, 1953, was originally found on bedstraw, or cleavers, Galium sp., growing at an elevation of about 6,890 to 7,220 feet above sea level in the Lagodekhsky reserve of the Armenian S.S.R. (Reck, 1953; Bagdasarian, 1957). A mite believed, on the basis of illustrations and descriptions only, to be the same species was found by the author in one locality in the Okanagan Valley of British Columbia. It was first observed on June 6, 1958, when about 10 female mites were noticed feeding on common horsetail, Equisetum arvense L., growing at an elevation of 3,300 to 3,500 feet near Orofino Creek on Mount McCaig, known locally as Orofino Mountain. The site, which was partially shaded by fairly heavy stands of tall coniferous trees, was somewhat boggy, and would undoubtedly be flooded during the spring run-off of Orofino Creek. Luxurious pure stands of this horsetail are common in such sites and, except for moss, it is often the predominant plant in many creek-bottom areas. An additional 20 female mites were collected at the same site on June 12, 1958. No males, or immature stages, were seen on either date. This is the first record outside southern Russia of the occurrence of a mite closely resembling B. lagodechiana, and the first report of the occurrence of any species of Bryobia on plants of the family Equisetaceae. The slide-mounted specimens are in the Canadian National Collection.



2015 ◽  
Vol 52 (4) ◽  
pp. 384-389 ◽  
Author(s):  
J. C. A. Briones ◽  
R. D. S. Papa ◽  
G. A. Cauyan ◽  
M. Urabe

Summary Three acanthocephalan parasites, namely Neoechinorhynchus (Neoechinorhynchus) quinghaiensis, Rhadinorhynchus ganapatti, and Bolbosoma sp. are reported for the first time from Philippine fishes. N. (N.) quinghaiensis (Neoechinorhynchidae) may have been introduced into the country through the importation of carp species from China, where this parasite was first described and is presumed to be naturally occurring. The adult worms of R. ganapatti and the isolated cystacanth of Bolbosoma sp. represent the first record of parasites from both the family Rhadinorhynchidae and Polymorphidae in Philippine waters, respectively. These three new records encompass a third of all listed acanthocephalan parasites that have been reported in Philippine fish species to date, highlighting the need for more biodiversity-focused parasitology research, in light of potentially numerous more undocumented parasite species.



2009 ◽  
Vol 69 (3) ◽  
pp. 963-967 ◽  
Author(s):  
WO. Almeida ◽  
SC. Ribeiro ◽  
GG. Santana ◽  
WLS. Vieira ◽  
LA. Anjos ◽  
...  

We present data on pulmonary infection rates by parasites in the lizards Tropidurus hispidus Spix, 1825 and T. semitaeniatus (Spix, 1825) living sympatrically in the Chapada do Araripe mountain Range, northeastern Brazil. We found no parasite pulmonary infection in T. semitaeniatus. However, two pulmonary parasite species were found in the T. hispidus hosts, the pentastomid Raillietiella mottae Almeida, Freire and Lopes, 2008 and the nematode Rhabdias sp. Overall prevalence was 5%. Prevalence of R. mottae was 2.5% and corresponded to only one parasite on each infected host. Prevalence of Rhabdias sp. was 2.5% and the range of infection was 1-2 parasites per host. This represents the first record of Rhabdias infecting lizards of the family Tropiduridae in the Neotropical region. Furthermore, we present a comparison of parameters of infection by pulmonary parasites including some recent studies in Brazil.



Zootaxa ◽  
2009 ◽  
Vol 2249 (1) ◽  
pp. 51-62 ◽  
Author(s):  
S. BRUCE ARCHIBALD

Four new scorpionfly species of the family Cimbrophlebiidae (Mecoptera) are described in the genus Cimbrophlebia Willmann from two localities of the far-western North American Early Eocene Okanagan Highlands: C. flabelliformis sp. n. and C. leahyi sp. n. from McAbee, British Columbia, Canada; and C. brooksi sp. n. and C. westae, sp. n. from Republic, Washington, U.S.A. A further, partially preserved specimen of a large cimbrophlebiid from McAbee is treated as Cimbrophlebia sp. A. This is the first record of the extinct family in the Western Hemisphere, which was previously known with confidence from the Early Eocene of Denmark (C. bittaciformis Willmann) and the Jurassic of Germany (Malmocimbrophlebia buergeri Bechly & Schweigert and an undescribed genus and species); Telobittacus fragosus Zhang from Early Cretaceous of China may also belong to the family. These Okanagan Highlands occurrences further reflect Early Eocene cross-North Atlantic distributions that have been well documented in plants and mammals, and are increasingly seen in insects.



Author(s):  
Barbara Mikac ◽  
Federica Semprucci ◽  
Loretta Guidi ◽  
Massimo Ponti ◽  
Marco Abbiati ◽  
...  

Abstract In this research, we report the presence of two ciliate protozoans of the subclass Peritrichia, Cothurnia amphicteis and C. peloscolicis, as epibionts on the chaetae of scaled polychaetes Malmgrenia lilianae, M. andreapolis (fam. Polynoidae) and Sthenelais boa (fam. Sigalionidae), from the north Adriatic (Mediterranean Sea). Both ciliate species are herein found for the first time after their original description and are redescribed, based on light and scanning electron microscopy analyses. This is the first record of an association between ciliates and polychaetes of the family Sigalionidae. Our results suggest that these host–epibiont relationships might be highly specific. We also present the first review of epibiosis between polychaetes and peritrich ciliates, indicating that this relationship is more diverse than previously thought. Forty taxa of peritrich ciliates from 12 genera and seven families are recorded as epibionts on polychaetes, while 48 polychaete taxa are known as their hosts. The relationship can be considered ectocommensalism, where the ciliates have the advantages of increased food availability. This association might be a more widespread phenomenon than currently known, because it could be easily overlooked or misinterpreted. It, therefore, deserves careful attention and further investigation.



2011 ◽  
Vol 71 (3) ◽  
pp. 791-796 ◽  
Author(s):  
AMO. Silva ◽  
M. Tavares-Dias ◽  
GT. Jerônimo ◽  
ML. Martins

This study describes the parasitic fauna of Oxydoras niger from the Coari Lake, tributary of the medium Solimões River, State of Amazonas, Brazil, and the relationship between the number of Monogenoidea and the condition factor. From a total of 27 examined fish, 70.3% were parasitised by at least one parasite species as follows: Ichthyophthirius multifiliis (Protozoa), Chilodonella sp. (Protozoa), Cosmetocleithrum gussevi, C. confusus, C. parvum and Cosmetocleithrum sp. (Monogenoidea), Paracavisona impudica (Acanthocephala), Cucullanus grandistomis (Nematoda), Proteocephalus kuyukuyu (Cestoda) and Dadaytrema sp. (Digenea). Monogenoidea helminthes were the most prevalent parasite when compared to protozoan and intestinal helminthes. This study showed that O. niger has a great parasite diversity composed mainly of monogenoideans followed by acanthocephalan and digenean. This is the first record of Dadaytrema in O. niger from the Brazilian Amazon. There was a positive correlation between the number of monogenoideans and the condition factor (Kn) of fish, and with this mean intensity of infection, fish welfare was not affected.



Author(s):  
Luana Silva Bittencourt ◽  
Roger Leomar da Silva Ferreira ◽  
Marcela Nunes Videira ◽  
Marcelo Francisco da Silva ◽  
Diehgo Tuloza da Silva ◽  
...  

Abstract The present study describes a new species of the genus Sphaerospora found in the urinary bladder of the flag cichlid, Mesonauta festivus collected in Corre Água district of the municipality of Macapá, Amapá State (Brazil). The study includes morphological and phylogenetic analyses of the new parasite, to determine the relationship of the new species with related myxosporean species. The new species has polysporous plasmodia, which vary in size and shape. The mature myxospores are subspherical shape in valvar view. In the sutural view, the myxospores are 5.3±0.2 (5.2-5.6) μm in length and 7.0±0.7 (6.3-7.7) μm in width, with two piriform polar capsules equal size, 2.5±0.2 (2.3-2.8) μm in length and 1.8±0.2 (1.6-2.0) μm in width. The phylogenetic analyses of a partial sequence of the 18S rRNA gene confirmed the status of the new species and determined the relationship of the new species and related myxosporean species.The sum of the evidence indicates that, Sphaerospora festivus n. sp. belongs to the family Sphaerosporidae, and is the first record of the genus Sphaerospora from Brazil.



2013 ◽  
Vol 18 (1) ◽  
pp. 59-69 ◽  
Author(s):  
Isabelle Albert ◽  
Dieter Ferring ◽  
Tom Michels

According to the intergenerational solidarity model, family members who share similar values about family obligations should have a closer relationship and support each other more than families with a lower value consensus. The present study first describes similarities and differences between two family generations (mothers and daughters) with respect to their adherence to family values and, second, examines patterns of relations between intergenerational consensus on family values, affectual solidarity, and functional solidarity in a sample of 51 mother-daughter dyads comprising N = 102 participants from Luxembourgish and Portuguese immigrant families living in the Grand Duchy of Luxembourg. Results showed a small generation gap in values of hierarchical gender roles, but an acculturation gap was found in Portuguese mother-daughter dyads regarding obligations toward the family. A higher mother-daughter value consensus was related to higher affectual solidarity of daughters toward their mothers but not vice versa. Whereas affection and value consensus both predicted support provided by daughters to their mothers, affection mediated the relationship between consensual solidarity and received maternal support. With regard to mothers, only affection predicted provided support for daughters, whereas mothers’ perception of received support from their daughters was predicted by value consensus and, in the case of Luxembourgish mothers, by affection toward daughters.



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