Folia Parasitologica, vol. 47 (2000), issue 3

Histopathology of Kabatana arthuri (Microspora) infection in sutchi catfish, Pangasius sutchi

Iva Dyková, Jiří Lom

Folia Parasitologica 47[3] 161-166 (2000) | DOI: 10.14411/fp.2000.032

The microsporidian Kabatana arthuri (Lom, Dyková et Shaharom, 1990) induced severe regressive changes in trunk muscles of Pangasius sutchi (Fowler) from Thailand. Necrotic changes developed in muscle fibres around the developmental stages and on the periphery of giant aggregates of spores. The main feature of the host defence reaction was the phagocytic activity of macrophages. Inflammatory reaction was only exceptionally observed. Spore-laden macrophages were found in various tissues and organs; their infiltration in epidermis including its outermost layers may effectively enhance the spread of infection while the hosts still live.

Myxobolus intrachondrealis sp. n. (Myxosporea: Myxobolidae), a parasite of the gill cartilage of the common carp, Cyprinus carpio

Kálmán Molnár

Folia Parasitologica 47[3] 167-171 (2000) | DOI: 10.14411/fp.2000.033

A species not identifiable with any of the about 23 Myxobolus species recorded from the common carp so far, was detected in the gills of one- and two-summer-old specimens of the common carp (Cyprinus carpio L.) cultured in pond farms in Hungary. The strictly tissue-specific plasmodia of the parasite were located, surrounded by hyaline cartilage cells, in the chondrous substance of the terminal parts of the gill arches and in the cartilage structure ventrally connecting the gill arches. The spores of the parasite described as Myxobolus intrachondrealis sp. n. developed in globular or ellipsoidal plasmodia measuring 300-600 µm....

Dynamics of the IgG3 responses following immunisation of BALB/c mice with somatic and excretory/secretory antigens from various Trichinella species

Maria Auxiliadora Dea-Ayuela, Francisco Bolas-Fernández

Folia Parasitologica 47[3] 172-180 (2000) | DOI: 10.14411/fp.2000.034

Comparison of the dynamics and antigen recognition profiles of IgG3 following immunisation with larval crude extracts (LCE) and excretory-secretory (ES) products from muscle larvae of different species of Trichinella (T. spiralis, T. nativa, T. britovi, T. nelsoni and genotype T6) was made in BALB/c mice. High levels of IgG3 response were obtained in ELISA following immunisation with LCE from all species with maximum levels achieved between days 59 and 64 post-immunisation (p.i.) and maintained up to the limit of the observation (day 164). Antigen recognition profiles as measured by western-blot showed dense and numerous...

Morphometrics and seasonal occurrence of metacestodes of Neogryporhynchus cheilancristrotus (Cyclophyllidea: Dilepididae) in the blue bream (Abramis ballerus) from the Oder River (Germany/Poland)

Michael Pietrock, Tomáš Scholz

Folia Parasitologica 47[3] 181-185 (2000) | DOI: 10.14411/fp.2000.035

From May 1993 to April 1995, the seasonal occurrence of metacestodes of Neogryporhynchus cheilancristrotus (Wedl, 1855) (Cyclophyllidea: Dilepididae) in its second intermediate host, the blue bream Abramis ballerus (L.) was studied monthly in the Oder River on the borders of Germany and Poland. Based on the parasite specimens found, detailed data on their morphometrics are presented. The metacestodes occurred in the blue bream intestine throughout the year (overall prevalence 27% and intensity 1-56 (mean 4.8) metacestodes per infected fish). Increased prevalences and mean intensities of infection were noted from March to June and November...

Three new helminth species from two endemic plethodontid salamanders, Typhlomolge rathbuni and Eurycea nana, in central Texas

František Moravec, David G. Huffman

Folia Parasitologica 47[3] 186-194 (2000) | DOI: 10.14411/fp.2000.036

Helminthological examination of two rare, endemic species of plethodontid salamanders, the Texas blind salamander (Typhlomolge rathbuni Stejneger) and the San Marcos dwarf salamander (Eurycea nana Bishop), from the subterranean waters and springs in San Marcos, Hays County, central Texas, USA revealed the presence of three new, previously undescribed species of intestinal helminths: Brachycoelium longleyi sp. n. (Trematoda) from T. rathbuni (type host) and E. nana, Dendronucleata americana sp. n. (Acanthocephala) from T. rathbuni, and Amphibiocapillaria texensis sp. n. (Nematoda) from T. rathbuni;...

Digeneans and cestodes parasitic in the white-faced ibis Plegadis chihi (Aves: Threskiornithidae) from Argentina

María Celina Digiani

Folia Parasitologica 47[3] 195-204 (2000) | DOI: 10.14411/fp.2000.037

Some digeneans and cestodes parasitic in a population of the white-faced ibis Plegadis chihi (Vieillot) from Buenos Aires province, Argentina, are presented. The digeneans Dietziella egregia (Dietz, 1909), Patagifer bilobus (Rudolphi, 1819), Ascocotyle (Leighia) hadra Ostrowski de Núñez, 1992 and Posthodiplostomum nanum Dubois, 1937 from the intestine; Prosthogonimus ovatus (Rudolphi, 1803) from the cloaca; Athesmia heterolecithodes (Braun, 1899) from the bile ducts and the cestode Hymenolepis megalops (Nitzsch in Creplin, 1829) from the cloaca, were recorded. The discovery...

Wardium paucispinosum sp. n. (Eucestoda: Hymenolepididae), parasite of Larus maculipennis (Aves: Laridae) in Mar del Plata, Argentina; with comments on Wardium semiductilis (Szidat, 1964) comb. n.

Juliana Beatríz Labriola, Delia Mabel Suriano

Folia Parasitologica 47[3] 205-210 (2000) | DOI: 10.14411/fp.2000.038

A new species Wardium paucispinosum (Eucestoda: Hymenolepididae) parasite from the intestine of Larus maculipennis (Lichtenstein) from Mar del Plata, Argentina is described. The distinctive features of the new species are: strobilar length 52.8 mm; 10 aploparaksoid rostellar hooks, 14 (12-17) µm long; ratio between cirrus pouch length and mature proglottid width (CPL/MPW) 0.38 (0.27-0.50); regular cylindrical evaginated cirrus, 90 × 10 µm, with distal end without spines and proximal and medium thirds covered with spines 7 µm long; simple tubular membranous vagina, 110 × 10 µm, without sclerotised portions and sphincters;...

Rhabdochona mexicana sp. n. (Nematoda: Rhabdochonidae) from the intestine of characid fishes in Mexico

Juan Manuel Caspeta-Mandujano, František Moravec, Guillermo Salgado-Maldonado

Folia Parasitologica 47[3] 211-215 (2000) | DOI: 10.14411/fp.2000.039

A new nematode, Rhabdochona mexicana sp. n., is described based on specimens recovered from the intestine of two species of fishes, Astyanax mexicanus (De Filippi) (type host) and Astyanax fasciatus (Cuvier) (Characidae: Characiformes) in central Mexico. This species is characterised by the following characters: 10 anteriorly directed teeth in the prostom, a larger (left) spicule which is slender in form with a small bifurcation at its distal tip covered by a cuticular membrane, a smaller (right) spicule without a barb at its distal tip, eggs bearing an irregular flock-like coating, and a conical tail without a cuticular spike...

Development of Procamallanus saccobranchi (Nematoda: Camallanidae), a parasite of a freshwater fish in India

Nimai C. De, Rabindra N. Maity

Folia Parasitologica 47[3] 216-226 (2000) | DOI: 10.14411/fp.2000.040

The development of the nematode Procamallanus saccobranchi Karve, 1952, a parasite in the stomach of the fish Heteropneustes fossilis (Bloch), was studied in Mesocyclops crassus (Fischer) and Mesocyclops leuckarti (Claus). After being ingested by the copepods the nematode first-stage larvae penetrated into the haemocoel of the intermediate host; there they moulted twice (on days 3 and 5 p.i. at 28-30°C) attaining the third, infective stage. The definitive host H. fossilis acquired infection by feeding on copepods harbouring infective-stage larvae; in the stomach of this definitive host, the larvae were observed to...

Anuretes grandis sp. n., a caligid copepod (Siphonostomatoida) parasitic on Diagramma pictum (Pisces) in Taiwan, with discussion of Anuretes Heller, 1865

Ju-shey Ho, Ching-Long Lin

Folia Parasitologica 47[3] 227-234 (2000) | DOI: 10.14411/fp.2000.041

A new species of caligid copepod (Siphonostomatoida), Anuretes grandis sp. n., parasitic on the painted sweetlips [Diagramma pictum (Thunberg)] in Taiwan is described. The new species is distinguished from its congeners by having: (1) free margin of cephalothorax not covering fourth pediger, (2) large genital complex longer than 2/3 of the cephalic shield, (3) no maxillary whip, (4) leg 3 with 9 setae on the terminal segment of exopod and 8 plumose setae on the terminal segment of endopod, and (5) armature of I,III on leg 4 exopod. Genus Anuretes Heller, 1865 is reviewed and redefined. Based on the new diagnosis three species (A....

A new species, Gnathia nkulu sp. n. (Crustacea: Isopoda: Gnathiidae) from southern Africa

Nico J. Smit, Jo G. Van As

Folia Parasitologica 47[3] 235-240 (2000) | DOI: 10.14411/fp.2000.042

A new species, Gnathia nkulu sp. n. is described from material collected off the South African coast at 80-200m depth. It differs from the intertidal species Gnathia africana Barnard, 1914 in that the mediofrontal process is not deeply divided into two lobes, article 2 of the pylopod is rounded and small wart-like tubercles and long simple setae are present on both the cephalosome and pereon.