Folia Parasitologica, vol. 38 (1991), issue 1

INTESTINAL PARASITES - A STUDY OF HUMAN APPENDIXES

L CERVA, M SCHROTTENBAUM, V KLIMENT

Folia Parasitologica 38[1] 5-9 (1991)

Histological sections of 414 appendices were examined parasitologically. Enterobius vermicularis was found in 8.7%, eggs of Ascaris lumbricoides in 0.5%, trophozoites of Dientamoeba fragilis in 4.8%, Endolimax nana in 2.2%, Entamoeba coli in 1% and cysts of Giardia intestinalis in 1.9% of cases. Appendicopathies associated with Enterobius were most frequent in the age group from 6 to 10 years (24.3%) and from 21 to 25 years (12.2%). Patients older than 15 years were practically women only. Dientamoeba was most frequent in the age group from 11 to 15 years (11.3%). In women D. fragilis was three times more frequent than in men. The coincidence of D....

THE SWIFTLETS (COLLOCALIA, APODIDAE) AS HOSTS OF HYPODERATID-HYPOPI

V CERNY

Folia Parasitologica 38[1] 10 (1991)

PARASITIC PROTOZOA OF CYPRINID FISHES - PROTOZOA OF THE ROACH RUTILUS RUTILUS (LINNAEUS, 1758) IN CZECHOSLOVAKIA

T KEPR

Folia Parasitologica 38[1] 11-21 (1991)

In the years 1985-1988, a total of 254 specimens of the roach, Rutilus rutilus, captured in 23 localities of South Bohemia, were examined for the presence of protozoan parasites. Only 17 specimens (6.7%) were free of infection, whereas the others were infected at least with one parasite species, mixed infections were observed most frequently. The following species were found rarely: Myxidium rhodei Leger, 1905 in the liver and muscles, Pleistophora mirandellae Vaney et Conte, 1901 in ovaries, Trichodina nemachili Lom, 1960 on the skin, Trichodina prowazeki Grupcheva et Lom, 1980 on the skin (the first finding in Czechoslovakia). The data concerning...

VARIABILITY OF THE HARD PARTS OF OPISTHAPTOR OF GYRODACTYLUS-LEUCISCI ZITNAN, 1964 (MONOGENEA, GYRODACTYLIDAE)

R ERGENS

Folia Parasitologica 38[1] 23-28 (1991)

Morphological and metrical evaluations of the hard parts of opisthaptor of 149 specimens of Gyrodactylus leucisci Zitnan, 1964 provided data on the variability of this parasite.

A NEW HUFFMANELA SPECIES, H-SCHOUTENI SP-N (NEMATODA, TRICHOSOMOIDIDAE) FROM FLYING FISHES IN CURACAO

F MORAVEC, BG CAMPBELL

Folia Parasitologica 38[1] 29-32 (1991)

A new nematode species, Huffmanela schouteni sp. n., has been established on the basis of its egg morphology and biological characters (adult nematodes are unknown). The dark-shelled eggs of this histozoic parasite occur in masses in the abdominal cavity, serose covers of internal organs and in the liver of the flying fishes Hirundichthys affinis Gunther (type host) and Cypselurus cyanopterus Cuvier et Valenciennes in Curacao. The eggs of H. schouteni sp. n. differ from those in other congeneric species mainly in the absence of small spines on the surface of the transparent envelope enclosing the egg proper, measurements (size of eggs 0.069-0.075 x...

ULTRASTRUCTURE OF THE MALE REPRODUCTIVE-SYSTEM OF THE TREMATODE BRACHYLAIMUS-AEQUANS

Z ZDARSKA, TN SOBOLEVA, J STERBA, J VALKOUNOVA

Folia Parasitologica 38[1] 33-38 (1991)

The transmission electron microscopic studies of the trematode Brachylaimus aequans revealed that the seminal vesicle and ejaculatory duct are lined with syncytial epithelium with numerous lamellate processes. The cirrus and genital pore are covered with a spineless tegument, which is almost identical with the body tegument. The testes contain tailed spermatozoa developing during spermiogenesis from biflagellate spermatids whose flagella (9 + 1) fuse with the median cytoplasmic process. The lumina of seminal vesicle, ejaculatory duct and cirrus are filled with spermatozoa.

STUDIES ON THE DEVELOPMENT OF THE CESTODE PROTEOCEPHALUS-NEGLECTUS LA RUE, 1911 (CESTODA, PROTEOCEPHALIDAE) UNDER EXPERIMENTAL CONDITIONS

T SCHOLZ

Folia Parasitologica 38[1] 39-55 (1991)

A part of the life cycle of Proteocephalus neglectus La Rue, 1911, a parasite of trout, starting from release of eggs from mature parasites into water, to the early phase of development in the definitive host, was studied under experimental conditions. Special regard has been paid to development in the intermediate host, copepod Cyclops strenuus. Some oncospheres in eggs kept in water at 5 and 10-degrees-C remained infective for 20-25 days. The percentage of infected copepods depended on the length of their contact with parasite eggs. Cestode larvae (cercoscoleces) were formed in the intermediate host on days 8-10 p.i. at the temperatures of 21-22-degrees-C,...

REDESCRIPTION OF, AND COMMENTS ON, CALIGUS-LACUSTRIS STEENSTRUP-ET-LUTKEN, 1861 (COPEPODA, CALIGIDAE), A PARASITE OF FRESH-WATER FISHES

AV GUSEV, Z KABATA

Folia Parasitologica 38[1] 57-61 (1991)

Caligus lacustris is the only freshwater species of a marine genus containing some 200 species. Although it is widespread and abundant in extensive freshwater habitats of the Old World, it has never been adequately described and accurately illustrated. This paper provides detailed description and illustrations of C. lacustris, based on new material from the territory of the USSR

STUDIES ON TICKS OF VETERINARY IMPORTANCE IN NIGERIA - INTRINSIC-FACTORS INFLUENCING OVIPOSITION AND EGG-HATCH OF AMBLYOMMA-VARIEGATUM UNDER NATURAL CONDITIONS

OO DIPEOLU, AO AMOO, OA AKINBOADE

Folia Parasitologica 38[1] 63-74 (1991)

During the peak of rains of 1983, 1984 and 1985 in the forest zone of Nigeria, female Amblyomma variegatum engorged to various weights were subjected to different experiments for the purpose of observing the intrinsic factors which influence oviposition and egg-hatch under natural conditions. Two types of oviposition patterns were observed. New terms were introduced to quantify the relationships between the daily weight loss and daily number of eggs oviposited by a tick. These terms are

OCCURRENCE OF AEDES-AEGYPTI (L) AND CULEX-QUINQUEFASCIATUS SAY (DIPTERA, CULICIDAE) IN HOUSES OF DIFFERENT CONSTRUCTIONS IN PHNOM-PENH, KAMPUCHEA

M KOHN

Folia Parasitologica 38[1] 75-78 (1991)

The relation between the number of mosquito specimens of the most abundant species Aedes aegypti (L.) and Culex quinquefasciatus Say and the construction of houses which they inhabited was studied. The effect of the building materials and of the height at which the floor was situated above the ground were assessed in five and four localities, respectively. It was found that in the localities having the character of a town the mosquitoes were most abundant in houses constructed from corrugated plate and in those the floor of which was situated 2-3.5 m above the ground. In the locality of a village character, the mosquitoes were most numerous in brick...

EFFECT OF IVERMECTIN ON THE DEVELOPMENT OF SERUM ANTIBODY-ACTIVITY IN RABBITS INFESTED WITH PSOROPTES-CUNICULI (ACARI, PSOROPTIDAE)

J UHLIR

Folia Parasitologica 38[1] 79-82 (1991)

Effect of ivermectin injected subcutaneously in a single dose on the serum specific antibody activity against Psoroptes cuniculi antigens was studied on four heavily and three weakly P. cuniculi infested rabbits. It has been shown that ivermectin enhanced the production of the specific antibody, especially in weakly infested rabbits. The serum specific antibody activity in both heavily and weakly infested rabbits reached the peak levels on fifth day after injection of ivermectin.

A NEW SPECIES OF THE GENUS GYRODACTYLUS NORDMANN, 1832 (MONOGENEA) FROM GOBIO-GOBIO (L)

R ERGENS

Folia Parasitologica 38[1] 83-85 (1991)

Gyrodactylus dykovae sp. n. (Monogenea: Gyrodactylidae) is described from the fins of the freshwater fish, Gobio gobio (L.) (Cyprinidae), from the Rokytna' River near Moravsky' Krumlov, Czechoslovakia. This species is most related to G. gobii Shulman, 1953 from which it differs by possessing more robust anchors with considerably larger shaft and by the morphology of the hook proper of marginal hooks.

NOTES ON GYRODACTYLUS-GUSSEVI LING MO-EN, 1962 (MONOGENEA, GYRODACTYLIDAE)

R ERGENS, SS YUKHIMENKO

Folia Parasitologica 38[1] 87-89 (1991)

The authors describe a species which is strikingly similar to the species Gyrodactylus gussevi Ling Mo-en, 1962 on the basis of morphometrical evaluation of 6 gyrodactylid specimens found on the fins of Parasilurus asotus (L.) which was captured in the River Amur near Khabarovsk. Due to inaccurate and incomplete original description of G. gussevi, the authors have to determine this species only provisionally as G. gussevi. As a result of evident appurtenance to G. latus-complex, P. asotus seems to be the

COYPUS (MYOCASTOR-COYPUS) AS A NEW HOST OF CRYPTOSPORIDIUM-PARVUM (APICOMPLEXA, CRYPTOSPORIDIIDAE)

I PAVLASEK, B KOZAKIEWICZ

Folia Parasitologica 38[1] 90 (1991)

DOMESTIC GEESE (ANSER-ANSER L) AS A NEW HOST OF COCHLOSOMA-ANATIS-KOTLAN, 1923

Z PECKA

Folia Parasitologica 38[1] 91-92 (1991)

VIVIPARUS-CONTECTUS AS A NEW INTERMEDIATE HOST OF LINSTOWIELLA-VIVIPARAE (LINSTOW, 1877) (TREMATODA, CYATHOCOTYLIDAE)

V NASINCOVA

Folia Parasitologica 38[1] 93-94 (1991)