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.

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.

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.

Some Ergasilids (Copepoda) parasitic on four species of Australian bream, Acanthopagrus spp

1986 ◽  
Vol 37 (1) ◽  
pp. 81 ◽  
Author(s):  
T Byrnes
Keyword(s):  
New Species ◽  
Host Specificity ◽  
Acanthopagrus Butcheri

Four ergasilid species are recorded from Australian bream, i.e. Acanthopagrus butcheri (Munro), A. australis (Gunther), A. berda (Forskill) and A. latus (Houttuyn) from around Australia. New species include Dermoergasilus acanthopagri and Ergasilus spinipes. Previously described species include E. lizae Krmyer and Paraergasilus acanthopagri Roubal. Ergasilus australiensis Roubal is synonymized with E. lizae. The zoogeography and host specificity of parasites are described.

Morphology and phylogeny of two new species of Sphaeromyxa Thélohan, 1892 (Cnidaria: Myxozoa) from marine fish (Clinidae and Trachichthyidae)

Parasitology ◽  
2014 ◽  
Vol 142 (5) ◽  
pp. 660-674 ◽  
Author(s):  
PAVLA BARTOŠOVÁ-SOJKOVÁ ◽  
ALENA KODÁDKOVÁ ◽  
HANA PECKOVÁ ◽  
ROMAN KUCHTA ◽  
CÉCILE C. REED
Keyword(s):  
South Africa ◽  
New Species ◽  
Host Specificity ◽  
Geographic Distribution ◽  
Marine Fish ◽  
Polar Capsule ◽  
Sequence Data ◽  
Similar Species ◽  
Two New Species ◽  
Myxosporean Species

SUMMARYOur survey of marine fish from South Africa and Indonesia revealed the presence of two new myxosporean species of the genus Sphaeromyxa for which we provide morphological and sequence data. Sphaeromyxa clini n. sp. detected in three Clinus spp. and Muraenoclinus dorsalis from South Africa is morphologically similar to Sphaeromyxa noblei previously described from Heteroclinus whiteleggii from Australia and to several other sphaeromyxids with arcuate spores and rounded ends. This similarity is reflected by phylogenetic positioning of S. clini n. sp. which clusters within the ‘incurvata’ group of the Sphaeromyxa clade. It differs from morphologically similar species by spore and polar capsule dimensions, host specificity and geographic distribution. Sphaeromyxa limocapitis n. sp., described from Gephyroberyx darwinii from Java, is morphologically similar to sphaeromyxids with straight spores and to marine Myxidium species with spindle-shaped spores but differs from them by spore and polar capsule dimensions, host specificity and geographic distribution. S. limocapitis n. sp. represents a separate lineage of the Sphaeromyxa clade and appears to be a missing link in the evolution of sphaeromyxids.

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