Folia Parasitologica, vol. 57 (2010), issue 3

New data on aetiology of nodular gill disease in rainbow trout, Oncorhynchus mykiss

Iva Dyková, Martin Kostka, Falk Wortberg, Elisabeth Nardy, Hana Pecková

Folia Parasitologica 57[3] 157-163 (2010) | DOI: 10.14411/fp.2010.021

We studied amoebae associated with nodular gill disease (NGD) outbreaks in rainbow trout Oncorhynchus mykiss (Walbaum) in fish farms in South-Western Germany. Gills of 12 diseased rainbow trout were examined in fresh, by isolation attempts, histologically and using in situ hybridisation (ISH). A total of nine amoeba strains of the genera Acanthamoeba (1), Hartmannella (2), Naegleria (1), Protacanthamoeba (1) and Vannella (4) were isolated and determined using light microscopical, ultrastructural and molecular methods. Specific molecular probes designed from the SSU rDNA sequences of individual amoeba...

Neotropical Monogenoidea. 56. New species of Anacanthorus (Dactylogyridae) from the gills of matrinchã, Brycon orthotaenia (Characiformes: Characidae), in the Rio São Francisco, Brazil

Cassandra M. Monteiro, Delane C. Kritsky, Marilia C. Brasil-Sato

Folia Parasitologica 57[3] 164-168 (2010) | DOI: 10.14411/fp.2010.022

Anacanthorus franciscanus sp. n. and Anacanthorus brevicirrus sp. n. (Dactylogyridae) are described from the gills of the matrinchã, Brycon orthotaenia Günther (Characidae), from the Rio São Francisco in Brazil. Anacanthorus franciscanus most closely resembles Anacanthorus elegans and A. kruidenieri from the matrinchão, Brycon melanopterus, of the Amazon River Basin. It differs from these species in part by having the bulbous proximal end of the hook shank with two translucent regions. Anacanthorus brevicirrus resembles A. franciscanus, A. kruidenieri and...

Monogenea of Chinese marine fishes. XVIII. Two monocotylids, including a new species, from the blotched fantail ray Taeniurops meyeni (Elasmobranchii: Dasyatidae) in the South China Sea

Shanmei Cao, Xuejuan Ding, Jianying Zhang, Lin Liu

Folia Parasitologica 57[3] 169-172 (2010) | DOI: 10.14411/fp.2010.023

Two monogenean species are recorded from a blotched fantail ray, Taeniurops meyeni (Müller et Henle) (Dasyatidae), kept in a public aquarium at the Guangzhou Ocean World. Heterocotyle taeniuropi sp. n. was obtained from the gills. It is similar to Heterocotyle similis Neifar, Euzet et Ben Hassine, 1998 and H. scotti Neifar, Euzet et Ben Hassine, 1998, both of which have a similar male copulatory organ, but it can be distinguished from these two species by aspects of the morphology of the male copulatory organ, which is tubular, straight or slightly curved with a sclerotized accessory piece and an asymmetrical funnel-shaped...

Ultrastructure of the ovarian follicles, oviducts and oocytes of Gyrocotyle urna (Neodermata: Gyrocotylidea)

Larisa G. Poddubnaya, Roman Kuchta, Tomáš Scholz, Willi E.R. Xylander

Folia Parasitologica 57[3] 173-184 (2010) | DOI: 10.14411/fp.2010.024

An ultrastructural study of the ovarian follicles and their associated oviducts of the cestode Gyrocotyle urna Grube et Wagener, 1852, a parasite from the spiral valve of the rabbit fish, Chimaera monstrosa L., was undertaken. Each follicle gives rise to follicular oviduct, which opens into one of the five collecting ducts, through which pass mature oocytes. These collecting ducts open into an ovarian receptacle which, in turn, opens via a muscular sphincter (the oocapt) to the main oviduct. The maturation of oocytes surrounded by the syncytial interstitial cells within the ovarian follicles of G. urna follows a pattern similar...

Three new species of Echinobothrium (Cestoda: Diphyllidea) from Indo-Pacific stingrays of the genus Pastinachus (Rajiformes: Dasyatidae)

Roman Kuchta, Janine N. Caira

Folia Parasitologica 57[3] 185-196 (2010) | DOI: 10.14411/fp.2010.025

Three new species of diphyllidean cestodes are described from stingrays of the genus Pastinachus from the Indian and Pacific Oceans. All three new species differ from all but 10 of the 36 valid species of Echinobothrium van Beneden, 1849 in that they bear lateral hooklets arranged in a continuous band across each lateral surface of the rostellum joining the groups of dorsal and ventral apical hooks, rather than arranged in distinct dorsal and ventral groups, on each side of the apical hooks. Echinobothrium nataliae sp. n. ex Pastinachus solocirostris off Borneo differs from other relatives in the following combination of...

First species of Ophiotaenia (Cestoda: Proteocephalidea) from Madagascar: O. georgievi sp. n., a parasite of the endemic snake Leioheterodon geayi (Colubridae)

Alainde Chambrier, Morgane Ammann, Tomáš Scholz

Folia Parasitologica 57[3] 197-205 (2010) | DOI: 10.14411/fp.2010.026

Ophiotaenia georgievi sp. n. (Proteocephalidea: Proteocephalinae) is described from the intestine of endemic colubrid snake Leioheterodon geayi Mocquard (Colubridae) from Antananarivo in Madagascar. The new species is the first species of Ophiotaenia La Rue, 1911 reported from Madagascar. It differs from all Ophiotaenia species parasitic in African snakes in the possession of a three-layered embryophore of eggs (other African species have two-layered embryophore). Furthermore, O. georgievi can be distinguished by the number of testes (92-140), width of the scolex (225-235 µm), total body length (57 mm), cirrus-sac...

Seasonal stability in parasite assemblages of the Brazilian flathead, Percophis brasiliensis (Perciformes: Percophidae): predictable tools for stock identification

Paola E. Braicovich, Juan T. Timi

Folia Parasitologica 57[3] 206-212 (2010) | DOI: 10.14411/fp.2010.027

A comparison of the composition and structure of parasite communities of the Brazilian flathead, Percophis brasiliensis Quoy et Gaimard (Perciformes: Percophidae) among seasons during one year was carried out in the Argentine Sea. A total of 195 fish specimens were examined and 25 parasite species were found. Parasite communities in seasonal samples showed a high degree of homogeneity in taxonomic composition and infection levels. Similarity analysis showed that the seasonal stability within and between samples was constant in both the composition and community structure throughout the year. Parasites can, therefore, be considered predictable...

Philometrid nematodes infecting fishes from the Everglades National Park, Florida, USA, with description of two new species

František Moravec, Micah Bakenhaster

Folia Parasitologica 57[3] 213-222 (2010) | DOI: 10.14411/fp.2010.028

The following three species of the Philometridae (Nematoda: Dracunculoidea) are described from marine perciform fishes of the Everglades National Park (northern Gulf of Mexico), Florida, USA: Philometra brevispicula sp. n. (male and females) from the subcutaneous tissue of mouth of the gray snapper Lutjanus griseus (Linnaeus) (Lutjanidae), Philometroides grandipapillatus sp. n. (only females) from pectoral fin muscle of the crevalle jack Caranx hippos (Linnaeus) (Carangidae), and Caranginema americanum Moravec, Montoya-Mendoza et Salgado-Maldonado, 2008 (females) from the subcutaneous fascia of trunk muscle in crevalle...

New evidence on a cold case: trophic transmission, distribution and host-specificity in Hedruris spinigera (Nematoda: Hedruridae)

José L. Luque, Fabiano M. Vieira, Kristin Herrmann, Tania M. King, Robert Poulin, Clément Lagrue

Folia Parasitologica 57[3] 223-231 (2010) | DOI: 10.14411/fp.2010.029

The life cycle of Hedruris spinigera Baylis, 1931 (Nematoda: Hedruridae) is determined here with the first formal identification of the parasite's intermediate host: the crustacean amphipod Paracorophium excavatum Thomson. Adult H. spinigera are redescribed from specimens collected from the stomach of fishes, Retropinna retropinna (Richardson) and Aldrichetta forsteri (Valenciennes), from Lake Waihola, New Zealand. Immature adults of the parasite collected from intermediate hosts (P. excavatum) are also described for the first time. The prevalence, abundance and intensity of infection of H. spinigera...

S. Klimpel, M. W. Busch, E. Kellermanns, S. Kleinertz, H. W. Palm: Metazoan Deep-Sea Fish Parasites.

František Moravec

Folia Parasitologica 57[3] 232 (2010) | DOI: 10.14411/fp.2010.030

Verlag Natur & Wissenschaft, Solingen (Germany), 2009. ISBN 978-3-936616-61-3, hardcover, 383 pp., 6 plates of coloured photos, 4 maps. Price EUR 70.00.

A microsporidian pathogen of the predatory beetle Rhizophagus grandis (Coleoptera: Rhizophagidae)

Mustafa Yaman, Renate Radek, Jaroslav Weiser, Çiçek Aydin

Folia Parasitologica 57[3] 233-236 (2010) | DOI: 10.14411/fp.2010.031

A new Microsporidium sp. infects Rhizophagus grandis Gyllenhall, a beetle which preys on the bark beetle Dendroctonus micans Kugellan in Turkey. Mature spores are single, uninucleate, oval in shape (3.75 ± 0.27 µm in length by 2.47 ± 0.13 µm in width), with a subapically fixed polar filament. The polar filament is anisofilar, coiled in 7-8 normal and 3-4 reduced coils. Other characteristic features of the microsporidium are the four/five nuclear divisions to form 16/32 (commonly 16) spores, subpersistent sporophorous vesicles (pansporoblasts) remaining till formation of the endospore, and the vesicles...