Folia Parasitologica, vol. 48 (2001), issue 2

The interrelationships of metazoan parasites: a review of phylum- and higher-level hypotheses from recent morphological and molecular phylogenetic analyses

Jan Zrzavý

Folia Parasitologica 48[2] 81-103 (2001) | 10.14411/fp.2001.013

Phylogeny of seven groups of metazoan parasitic groups is reviewed, based on both morphological and molecular data. The Myxozoa (=Malacosporea + Myxosporea) are most probably related to the egg-parasitic cnidarian Polypodium (Hydrozoa?: Polypodiozoa); the other phylogenetic hypotheses are discussed and the possible non-monophyly of the Cnidaria (with the Polypodiozoa-Myxozoa clade closest to the Triploblastica) is suggested. The Mesozoa is a monophyletic group, possibly closely related to the (monophyletic) Acoelomorpha; whether the Acoelomorpha and Mesozoa represent the basalmost triploblast clade(s) or a derived platyhelminth subclade may...

D.T.J. Littlewood, R.A. Bray (Eds.): Interrelationships of the Platyhelminthes.

Tomáš Scholz

Folia Parasitologica 48[2] 104 (2001) | 10.14411/fp.2001.014

The Systematics Association Special Volume Series 60. Taylor & Francis, London and New York, 2001, ISBN 0-7484-0903-3, hard cover, 353 pp. Price £ 75.00.

New thiadiazine derivatives with activity against Trypanosoma cruzi amastigotes

Susana Muelas, Rossanna Di Maio, Hugo Cerecetto, Gustavo Seoane, Carmen Ochoa, José Antonio Escario, Alicia Gómez-Barrio

Folia Parasitologica 48[2] 105-108 (2001) | 10.14411/fp.2001.015

The cytotoxicity of 18 new 1,2,6-thiadiazin-3,5-dione 1,1-dioxides was evaluated. This group of products was previously assayed against epimastigotes of Trypanosoma cruzi and some of them showed a high antiprotozoal activity. Thereafter 13 compounds with a high anti-epimastigote activity and low cytotoxicity were selected to be assayed against amastigotes. Some of the products showed the same or even lower cytotoxicity than nifurtimox and benznidazole, but most of them were very toxic for macrophages at 100 µg/ml. Only one of the compounds had an anti-amastigote activity similar to that of reference drugs at 10 µg/ml, but unfortunately...

Weketrema gen. n., a new genus for Weketrema hawaiiense (Yamaguti, 1970) comb. n. (Digenea: Lecithasteridae) recently found in Australian marine fishes

Rodney A. Bray, Thomas H. Cribb

Folia Parasitologica 48[2] 109-114 (2001) | 10.14411/fp.2001.016

A new genus, Weketrema, is erected in the family Lecithasteridae for the species hitherto known as Lecithophyllum hawaiiense. Weketrema hawaiiense (Yamaguti, 1970) comb. n. is redescribed from Scolopsis bilineatus (Bloch) (Perciformes: Nemipteridae) from Lizard Island and Heron Island, Queensland, Plectorhinchus gibbosus (Lacepède) (Perciformes: Haemulidae) from Heron Island and Cheilodactylus nigripes Richardson (Perciformes: Cheilodactylidae) and Latridopsis forsteri (Castelnau) (Perciformes: Latridae) from Stanley, northern Tasmania. The new genus is distinguished from related members of the...

Psilolintonum lineatum (Linton, 1928) (Echinostomatoidea: Psilostomidae) re-allocated to Podocotyle (Allocreadioidea: Opecoelidae) on the basis of a re-examination of the type material

Aneta Kostadinova

Folia Parasitologica 48[2] 115-117 (2001) | 10.14411/fp.2001.017

The type-material of Psilostomum lineatum Linton, 1928 was re-examined and identified as Podocotyle reflexa (Creplin, 1825). This re-allocation of the type and only species invalidates the genus Psilolintonum that is now considered a synonym of Podocotyle.

Experimental infection of Atlantic salmon (Salmo salar) with marine Eubothrium sp. (Cestoda: Pseudophyllidea): observations on the life cycle, aspects of development and growth of the parasite

Monica Saksvik, Are Nylund, Frank Nilsen, Kjartan Hodneland

Folia Parasitologica 48[2] 118-126 (2001) | 10.14411/fp.2001.018

The life cycle of marine Eubothrium sp. (Cestoda: Pseudophyllidea), from Atlantic salmon (Salmo salar L.) was experimentally completed in one year and included only one intermediate host (Acartia tonsa Dana) (Copepoda: Calanoida). Adult cestodes were collected from farmed salmon, and ripe eggs released by the cestodes were fed to Acartia tonsa. Ingested eggs hatched in the gut and the larvae developed in the haemocoel of the copepod for 15 days at 16°C. A total of 170 seawater-reared salmon were exposed to infected copepods and the total prevalence of Eubothrium sp. in the salmon after infection was 95.3%, with a...

Philometroides africanus sp. n. (Nematoda: Philometridae), a new tissue parasite of the African pike Hepsetus odoe (Pisces) in Botswana

František Moravec, Jo G. Van As

Folia Parasitologica 48[2] 127-131 (2001) | 10.14411/fp.2001.019

A new species of philometrid nematode, Philometroides africanus sp. n., is described from female specimens found encapsulated in gill arches and inner surface of gill covers of the African pike, Hepsetus odoe (Bloch), an endemic freshwater fish in Africa, from the Okavango River and Delta in Botswana. This new nematode is characterised mainly by a markedly small and plump body of gravid females (body length 6-9 mm), a separate anterior oesophageal bulb, a conspicuously small oesophageal gland, presence of four pairs of very small submedian cephalic papillae, and absence of any caudal processes. The prevalence of P. africanus in...

Redescription of Mehdiella microstoma and description of Mehdiella petterae sp. n., with a new definition of the genus Mehdiella Seurat, 1918 (Nematoda: Pharyngodonidae)

Salah Bouamer, Serge Morand, Robert Bourgat

Folia Parasitologica 48[2] 132-138 (2001) | 10.14411/fp.2001.020

The generic diagnosis of Mehdiella Seurat, 1918 is emended based on study and redescription of Mehdiella microstoma (Drasche, 1884) from the caecum of Testudo graeca Linnaeus, 1758 collected in Settat, Morocco and on study and description of a new species, Mehdiella petterae sp. n., from the large intestine of Testudo hermanni (Gmelin, 1789) collected in Catalonia, Spain. Scanning electron microscopy (SEM) studies revealed substantial differences in the structure of the mouth and the caudal end, and made possible to differentiate the new species from the others. SEM studies showed the real and sound characteristics...

Redescription of Ichthyofilaria argentinensis Incorvaia, 1999 (Nematoda: Philometridae) parasite of Merluccius hubbsi (Pisces: Merlucciidae) from Argentina

Juan Tomás Timi, Graciela Teresa Navone, Norma Haydée Sardella

Folia Parasitologica 48[2] 139-142 (2001) | 10.14411/fp.2001.021

Ichthyofilaria argentinensis Incorvaia, 1999 (Nematoda: Philometridae) is redescribed from type specimens and from parasites collected from the swim bladder of Argentine hakes Merluccius hubbsi Marini, 1933 caught at the Gulf of San Jorge (46°30'S, 66°30'W), Argentine Sea, in July, 1998. Sixteen out of 80 hakes (20%) were found to be parasitised by gravid females of this philometrid. After revision of both these nematodes and type material, the following differences from the original description of the species were observed: (a) cuticle with fine transverse striations, instead of smooth cuticle; (b) presence of cephalic papillae and a...

Composition and structure of helminth communities in two populations of Pipistrellus pipistrellus (Chiroptera: Vespertilionidae) from Spain

J. Guillermo Esteban, Blanca Amengual, Jordi Serra Cobo

Folia Parasitologica 48[2] 143-148 (2001) | 10.14411/fp.2001.022

The community composition and structure of helminths of Pipistrellus pipistrellus (Schreber, 1774) from two widely separated Spanish localities, El Saler (n = 42) and the San Pedro pothole (n = 34), were determined and compared. Five species of trematodes, Plagiorchis (Plagiorchis) sp., Lecithodendrium (Lecithodendrium) linstowi Dollfus, 1931, Prosthodendrium (Prosthodendrium) sp., Pycnoporus heteroporus (Dujardin, 1845) and Parabascus semisquamosus (Braun, 1900), and one species of cestode, Hymenolepis pipistrelli López-Neyra, 1941, were found. The two bat populations harboured...

Mortality caused by experimental infection with the yeast Candida haemulonii in the adults of Ornithodoros moubata (Acarina: Argasidae)

Gabriela Loosová, Libor Jindrák, Petr Kopáček

Folia Parasitologica 48[2] 149-153 (2001) | 10.14411/fp.2001.023

A relatively high rate of mortality among engorged females of Ornithodoros moubata (Murray, 1877) was observed in our laboratory colony. The general aim of the study was to identify the causative agent responsible for this mortality. The diagnostic tests were performed by Yeast Identification Service (CBS-Delft, Netherlands) and the pathogen was identified as the yeast Candida haemulonii (van Uden et Kolipinski, 1962) Meyer et Yarrovi, 1978. The artificial infection study was performed by intrahaemocoelic inoculation of yeast suspension, resulting in a mortality of 37%. The maximum mortality of ticks infected per os by contaminated...

Picobia polonica sp. n. (Acari: Prostigmata: Syringophilidae), a new species of quill mite from the domestic hen, Gallus gallus domesticus (Aves: Phasianidae)

Maciej Skoracki, Wojciech Magowski, Jacek Dabert

Folia Parasitologica 48[2] 154-158 (2001) | 10.14411/fp.2001.024

Female, physogastric female and male of Picobia polonica sp. n. collected from the domestic hen Gallus gallus domesticus (L.) in Poland are described and the phenomenon of physogastry in this and related species is briefly discussed. Picobia polonica is similar to Picobia khulkhshani (Kivganov et Sharafat, 1995). These two species can be distinguished by the following characters: P. polonica: chelicerae dentate, each with three minute teeth; setae g1 and pg2 subequal in length; ratio pg1 : pg2, 3 : 1. P. khulkhshani: chelicerae edentate; setae g1 twice shorter than pg2;...

Chromosome analysis of Proteocephalus osculatus (Cestoda: Proteocephalidea)

Romualda Petkevičiūtė

Folia Parasitologica 48[2] 159-161 (2001) | 10.14411/fp.2001.025

C.N.L. Macpherson, F.X. Meslin, A.I. Wandeler (Eds.): Dogs, Zoonoses and Public Health.

Břetislav Koudela

Folia Parasitologica 48[2] 162 (2001) | 10.14411/fp.2001.026

CABI Publishing, Oxon and New York, 2000, ISBN 0-85199-436-9, hard cover, 382 pp. Price £65.00, US$ 120.00.

Evidence of tubulin in the scolex gland ductus of Gymnorhynchus gigas plerocercoid (Cestoda: Trypanorhyncha)

Mª Jose Moreno, Nieves Casado, Mª Angeles Urrea-París, Filomena Rodriguez-Caabeiro

Folia Parasitologica 48[2] 163-164 (2001) | 10.14411/fp.2001.027

Diversity of gyrodactylids from some marine fishes in tropical and subtropical Queensland, Australia

Ingo Ernst, Ian D. Whittington, Malcolm K. Jones

Folia Parasitologica 48[2] 165-168 (2001) | 10.14411/fp.2001.028