Helminth Parasites of Rhinobatos planiceps Garman 1880, including Two New Species of Cestodes, with Comments on Host Specificity of the Genus Rhinebothrium Linton 1890

1976 ◽  
Vol 62 (6) ◽  
pp. 939 ◽  
Author(s):  
Murray D. Dailey ◽  
Juan Carvajal
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Helminth Parasites ◽  
Two New Species

An analysis of the genus Leucothoe Leach, 1814 (Amphipoda: Leucothoidae) in New Zealand, with the description of two new species symbiotic with ascidians and sponges

2020 ◽  
Author(s):  
Ronja Hauke ◽  
Rachael A Peart ◽  
Ken G Ryan
Keyword(s):  
New Species ◽  
New Zealand ◽  
Host Specificity ◽  
Two New Species

Abstract Leucothoids (family Leucothoidae Dana, 1852) are amphipods often associated with sponges and are relatively poorly recorded in New Zealand waters, with only four species previously recorded. Two newly discovered species, Leucothoe agripeta  sp. nov. and L. tumultus  sp. nov. are described from a sponge off Aotea Quay, Wellington, New Zealand and an ascidian from the Chatham Rise, eastern New Zealand, respectively. Leucothoe traillii  Thomson, 1881 is redescribed and a neotype assigned. A key to the New Zealand species of Leucothoe as well as a discussion of their host-specificity and ecology are also provided.

Biodiversity and host specificity of sponge-associated barnacles (Cirripedia: Thoracica) in Thailand

2020 ◽  
Vol 40 (6) ◽  
pp. 839-865 ◽  
Author(s):  
Meng-Chen Yu ◽  
Benny K K Chan ◽  
Gregory A Kolbasov ◽  
Monthon Ganmanee
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Andaman Sea ◽  
Host Use ◽  
Gulf Of Thailand ◽  
Molecular Approach ◽  
Barnacle Species ◽  
Wide Range ◽  
Two New Species ◽  
The Gulf Of Thailand

Abstract We examined the diversity and host use of sponge-associated barnacles of Thailand (Andaman Sea and the Gulf of Thailand) using a combined morphological and molecular approach. Eight barnacle species (including two new species) were collected from 12 host sponges. Host-specific barnacle species includes Acasta lappasp. nov., which exclusively inhabits the sponge Mycale sp. Acasta milkaesp. nov. was only collected from the sponge Callyspongia cf. diffusa (Ridley, 1884). Multatria filigranus (Broch, 1916) were found in the encrusting soft sponges Monanchora unguiculata (Dendy, 1922) and Clathria sp. Pyrgospongia stellula (Rosell, 1975) inhabits the sponges Spheciospongia vagabunda (Ridley, 1884). Generalist barnacle species includes Euacsta ctenodentia (Rosell, 1972), E. porata (Nilsson-Cantell, 1921), E. zuiho (Hiro, 1936), and Acasta cyathus Darwin, 1854, which inhabit a wide range of sponges with various textures.

Parasites of Freshwater Fishes (Salmonidae and Coregonidae) of Insular Newfoundland

1967 ◽  
Vol 24 (9) ◽  
pp. 1911-1943 ◽  
Author(s):  
I. M. Sandeman ◽  
J. H. C. Pippy
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Salmo Salar ◽  
Salmo Trutta ◽  
Salvelinus Fontinalis ◽  
Salmo Gairdneri ◽  
Coregonus Clupeaformis ◽  
Two New Species ◽  
Host Parasite ◽  
Lake Fish

A survey was made of the parasites of freshwater game fishes in Insular Newfoundland. A total of 304 fish from five species (Salvelinus fontinalis, Salmo salar (grilse, landlocked, parr, smolt), Salmo gairdneri, Salmo trutta, and Coregonus clupeaformis) was examined from 43 sampling stations covering the main watersheds of the island. Twenty-six parasitic species are recorded. Two new species, Phyllodistomum limnosa and Salmincola exsanguinata, are described. Descriptions are given and the systematic positions of the following discussed: Trichophrya piscium, Crepidostomum farionis, Apophallus brevis (metacercariae), Dibothriocephalus sp., Echinorhynchus lateralis, Metabronema salvelini, Philonema agubernaculum, Salmincola salmonea, and Argulus canadensis. A host–parasite list with percentage infections is given for all species of fish and a table showing the distribution between river and lake fish over the island as a whole is given for the commoner parasites of S. fontinalis. Distribution and host specificity are discussed.

New species of Lancisporomyces, Orphella, and Paramoebidium, endosymbionts of stonefly nymphs from streams in Nova Scotia, Canada

2006 ◽  
Vol 84 (9) ◽  
pp. 1478-1495 ◽  
Author(s):  
D.B. Strongman ◽  
Merlin M. White
Keyword(s):  
New Species ◽  
Sexual Reproduction ◽  
Host Specificity ◽  
Aquatic Insects ◽  
Fungal Species ◽  
Species Occurrence ◽  
Temporal Aspects ◽  
The World ◽  
Two New Species ◽  
Protistan Species

Trichomycetes are endobionts that include both fungal and protistan species living in the guts of aquatic insects. Although widely distributed around the world, the biodiversity of these fungi in Canada is virtually unknown. We report the occurrence of 13 species of trichomycetes associated with stonefly nymphs in the families Capniidae, Leuctridae, Nemouridae, and Taeniopterygidae from collections spanning 8 years. This paper extends the geographical range for a number of known fungal species. We describe four new species of Harpellales, Lancisporomyces anguilliformis, Lancisporomyces falcatus, Lancisporomyces nemouridarum, and Orphella dalhousiensis, including both asexual and sexual features for each, as well as two new species of Paramoebidium (Amoebidiales), Paramoebidium cassidula and Paramoebidium stipula. The observations on zygospore morphology in Lancisporomyces and ontogeny of sexual spores in Orphella broaden our perspective on sexual reproduction in the Harpellales. Also highlighted are data on temporal aspects of species occurrence, asexual and sexual sporulation for some species that show host specificity as well as synchrony in maturation of the endobionts with their stonefly hosts.

Helminth parasites of the cliff swallow, Petrochelidon pyrrhonota Veillot, 1817 in Colorado, with two new species

1975 ◽  
Vol 49 (2) ◽  
pp. 115-119 ◽  
Author(s):  
Robert J. Kayton ◽  
Gerald D. Schmidt
Keyword(s):  
New Species ◽  
New Records ◽  
Helminth Parasites ◽  
New Host ◽  
Cliff Swallow ◽  
Petrochelidon Pyrrhonota ◽  
North Eastern ◽  
Two New Species ◽  
New Host Records ◽  
Eleven Species

AbstractNinety-seven cliff swallows, Petrocheilidon pyrrhonota, were examined from North-eastern Colorado. Five species of nematodes (Hadjelia pyrrhonotae sp. n., Acuaria sp., Microtetrameres inermis, Splendidofilaria sp., Diplotriaena sp.); four species of trematodes (Concinnum minor sp. n., Brachylecithum marinholutzi, Plagiorchis maculosus, Stomylotremagratiosus); and two species of acanthocephala.(Mediorhynchusgrandis, Mediorhynchus papillosus (juveniles)) were recovered. All eleven species of helminths represent new host records. Six new records (Hadjelia pyrrhonota, Microtetrameres inermis, Concinnum minor, Brachylecithum marinlwlutzi, Plagiorchis maculosus, Stomylotrema gratiosus) were established for Colorado. Five new records (Hadjelia pyrrhonota, Microtetrameres inermis, Concinnum minor, Brachylecithum marinlwlutzi were established for North America.

Helminth Parasites ofPseudacris hypochondriaca(Anura: Hylidae) from Baja California, Mexico, with the Description of Two New Species of Nematodes

2013 ◽  
Vol 99 (6) ◽  
pp. 1077-1085 ◽  
Author(s):  
Elizabeth A. Martínez-Salazar ◽  
Jorge Falcón-Ordaz ◽  
Edna González-Bernal ◽  
Gabriela Parra-Olea ◽  
Gerardo Pérez-Ponce de León
Keyword(s):  
New Species ◽  
Baja California ◽  
Helminth Parasites ◽  
Two New Species

Four Species of Polylabroides (Monogenea: Polyophisthocotylea: Microcotylidae) on Australian Bream, Acanthopagrus Spp.

1985 ◽  
Vol 33 (5) ◽  
pp. 729 ◽  
Author(s):  
T Byrnes
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Two New Species ◽  
Acanthopagrus Butcheri

Two previously described species, Polylabroides australis (Murray, 1931) and P. multispinosus Roubal, 1981, and two new species, P. quadruspinosus and P, longispinosus, were recovered from four species of bream, Acanthopagrus butcheri (Munro), A. australis (Gunther), A. berda (Forskal), and A. latus (Houttuyn). The new species are described and a key to all known species of the genus is given. Zoogeographical distribution and host specificity of all four species are described.

scholarly journals Encotyllabe spari do not live in Brazil: Morphological and molecular evidence confirm two new species of Encotyllabe (Monogenea: Capsalidae) from Brazil

2020 ◽  
Author(s):  
Naraiana L. Taborda ◽  
Fabiola A. Sepulveda ◽  
Jose L. Luque ◽  
Ruben Escribano ◽  
Marcelo Enrique Oliva
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Host Species ◽  
Arabian Gulf ◽  
Original Description ◽  
Molecular Evidence ◽  
Two New Species ◽  
Morphological Differences ◽  
Pagrus Pagrus ◽  
Almost All

Abstract BackgroundCurrently, 24 species of Encotyllabe Diesing, 1850 (Monogenea: Capsalidae) are listed in WoRMS, but the validity of many species has been questioned due to deficient or incomplete descriptions. On the other hand, almost all species in the genus have been described from one host species or closely related host species, suggesting host specificity, but other species, specifically Encotyllabe spari Yamaguti, 1934, have been reported at least from 19 species belonging to nine families in two orders (Perciformes and Scorpaeniformes) from Japan, the Arabian Gulf and Brazil. Concerning Brazilian records of Encotyllabe spari (but also as Encotyllabe cf. spari); seven host species belonging to four families and two orders have been reported as hosts for this species. The aim of this study was to describe two new species of Encotyllabe from Brazil, previously considered as E. spari.MethodsDuring 2016, we examined specimens of Orthophristis ruber (Cuvier) (Haemulidae) and Pagrus pagrus (Linnaeus) (Sparidae) caught off the coast of Cabo Frio, Rio de Janeiro, Brazil by local fishermen. Specimens of Encotyllabe were collected from the pharyngeal plates of the hosts. Morphological and morphometric (multivariate analysis of proportional measurements standardized by total length) and molecular analysis (LSU rRNA and cox1 gene) were performed in order to identify the collected monogenea. ResultsThe presence of two new species of Encotyllabe, Encotyllabe yamagutii n. sp. and Encotyllabe haemuli n. sp., parasitizing the pharyngeal plates of Pagrus pagrus and Orthopristis ruber, respectively, is strongly suggested by the three approaches used in this study. The main morphological differences from the most related species include a combination of body size, shape of the penis, and size and position of the testes.ConclusionsSpecimens of Encotyllabe, hitherto recorded as E. spari or E. cf. spari, belong to two new species. Our results suggest that the host specificity for members of Encotyllabe and specimens registered as E. spari, other than those from the original description, must be revisited.

Helminth parasites of the endangered hooded grebe,Podiceps gallardoi, from Patagonia Argentina, with the description of two new digenean species

2017 ◽  
Vol 92 (5) ◽  
pp. 563-571 ◽  
Author(s):  
V. Núñez ◽  
F. Drago ◽  
S. Jones ◽  
L. Lunaschi
Keyword(s):  
New Species ◽  
Ventral Sucker ◽  
First Record ◽  
Helminth Parasites ◽  
Santa Cruz ◽  
Double Row ◽  
Single Row ◽  
Critically Endangered Species ◽  
Digenean Species ◽  
Two New Species

AbstractIn March 2011, a predator killed 33 hooded grebes,Podiceps gallardoiRumboll (Podicipedidae), a critically endangered species, in a nesting colony at El Cervecero Lake, Santa Cruz Province, Argentina. The viscera of ten birds were examined for helminths. Two new species of Trematoda were recovered from the intestines. The plagiorchidPlagiorchis patagonensisn. sp. is mainly characterized by the larger size of the oral sucker relative to the ventral sucker, and by the distribution of the vitellarium in two lateral fields, confluent between the caecal bifurcation and the ventral sucker. The echinostomatidEuparyphium tobianumn. sp. is mainly characterized by possessing a head collar with 37–39 spines (4 angle spines on each ventral lappet, 4 lateral spines in a single row on each side, and 21–23 dorsal spines in a double row). An unidentified cestode, a tetramerid nematode and a notocotylid trematode were also recovered from the birds. This is the first record of helminths parasitizing the hooded grebe.

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