Hymenolepidoid Cestodes (Cyclophyllidae, Hymenolepidoidae) of Pratincole (Glareola Pratincola) from the South of Ukraine
Four hymenolepidoid cestode species Glareolepis porale (Meggitt, 1927) Spassky, 1967; Wardium (s. l.) tauricum Kornyushin et Greben, sp. n.; Wardium (s. l.) sp. n.; and Echinocotyloides longirostris (Rudolphi, 1819) Kornyushin, 1983 from pratincole from the Southern Ukraine are discribed. The morphology of G. porale is described in details. An interesting new observation is that testes are lacking in female proglottides of G. porale; the structures described in literature as testes in hermaphroditic proglottides are, in fact, ovarian lobes. The new cestode species Wardium (s. l.) tauricum sp. n. is described. It is characterised by aploparaksoid hooks, 13-15 μm long, and conical armed cirrus, 20-22 μm long. Another cestode species, Wardium (s. l.) sp., is identified to the generic level only. It differs from all the species of the genus in the size and armament of the cirrus; however, no scolex was present in the material studied.
Twelve birds species of the suborder Charadrii of the families Charadriidae, Recurvirostridae, Scolopacidae, Glareolidae were examined at Syvash Lake (Ukraine) in spring 2011. Cestodes were found in 82.1 % of examined birds. Seventeen cestode species of 6 families were found. Aploparaksis octacantha from Calidris alpinà and Echinocotyloides dubininae from C. ferruginea are new geographical records for the first time in Ukraine. Glareola pratincola is a new host record for Nadejdolepis paranitidulans. Cestodes of the genus Microsomacanthus were found in waders apparently due to the infection (2.8 %) in their intermediate hosts, gammarid crustaceans.
The new cyclophyllidian species Wardium mackoifusa sp. n. (Aploparksidae Mayhew 1925), in the little gull (Larus minutus Pall.) from Ukraine is described. The species is characterized by 10 aploparaksoid hooks, each 13–15 μm long. It noticeably differs from all of the species of this genus by the shape and the armament of the cirrus and the presence of polar delicate filaments on the embryophore of eggs.
Wardium Ponticum Sp. N. (Cestoda, Cyclophyllidea, Hymenolepidoidea), a Parasite of Pratincole (Glareola Pratincola) from the Black Sea Coast
The new species Wardium ponticum Kornyushin, Georgiev et Greben, sp. n. (Aploparksidae Mayhew, 1925) parasitic in pratincole (Glareola pratincola Linnaeus, 1766) from Bulgaria and Ukraine is described. The species is characterized by 10 aploparaksoid hooks, 9-10 mm long, and clearly differs from all congeneric species by the shape and armament of the cirrus.
The article presents the results of the investigation of material on the genus Centrorhynchus Lühe, 1911 stored in the collection of the Department of Parasitology, Schmalhauzen Institute of Zoology, National Academy of Sciences of Ukraine. Five species: Centrorhynchus aluconis, C. globocaudatus, C. spinosus, C. conspectus and C. polissiensis sp. n. were studied and described. Centrorhynchus polissiensis sp. n., differs from all known species by the complex morphological characters, in particular, by the formula of proboscis hooks in combination with the number of large hooks with roots, by the number of hooks in anterior part of the proboscis, and by comparatively smaller eggs. C. polissiensis sp. n. is most similar to C. aluconis, C. conspectus and C. globocaudatus. The main differences between the species are in the proboscis armament, 13–17 hooks in a longitudinal row in C. aluconis, 16–18 hooks in C. conspectus vs 19–20 hooks in C. polissiensis sp. n., and in the egg sizes, 56–65 × 28–30 for C. aluconis, 68–72 × 33–35 for C. conspectus vs 45–55 × 25 for C. polissiensis sp. n. C. polissiensis sp. n. differs from C. globocaudatus in shape and morphology of the proboscis hooks. We do not confirm the record of C. amphibius from birds of the territory of Ukraine. The data on synonymy, hosts and distribution in Ukraine and in the world are given for seven species of the genus recorded in Ukraine. Illustrated descriptions about the material of collection are presented for five species. We provide an identification key for nine species of the genus Centrorhynchus of the birds of the fauna of Ukraine and adjacent territories.
Morphological and molecular data on the type-species of Chaunocephalus Dietz, 1910, Chaunocephalus ferox (Rudolphi, 1795) is provided based on material collected from the type-host, Ciconia nigra (Linnaeus), from Kiev Zoo, Ukraine.
Thirty-eight Mallards were collected on the territory of Ukrainian Polissia to study the fauna of their gastro-intestinal helminths. Materials were collected in 1998-2000, 2014 and 2016 on the territory of Volyn and Chernihiv Regions. In total, 33 species of helminths were found. Th e prevalence of cestode infection was 78.9 %. We found 18 cestode species: Aploparaksis furcigera, Cloacotaenia megalops, Dicranotaenia coronula, Diorchis acuminatus, D. stefanskii, Fimbriaria fasciolaris, F. teresae, Microsomacanthus compressa, M. spiralibursata, M. paracompressa, M. paramicrosoma, M. parvula, M. hopkinsi, Platyscolex ciliata, Retinometra venusta, Sobolevicanthus aculeostyleticus, S. gracilis, S. stolli. Th e prevalence of trematode infection was 73.7 %. Th ere were 10 trematode species: Bilharziella polonica, Apatemon gracilis, Echinoparyphium aconitum, E. cinctum, Echinostoma revolutum group, Hypoderaeum conoideum, Notocotylus attenuatus, Parastrigea robusta, Prosthogonimus ovatus, P. cuneatus.Th e prevalence of nematode infection was 7.9 %. Th ere were four nematode species: Capillaria anatis, Capillariidae gen. sp., Eucoleus contorta, Tetrameres fi ssispina. Th e prevalence of an acanthocephalan Filicollis anatis was 18.4 %. Th e most common species of helminths were A. furcigera, B. polonica, A. gracilis, Echinostoma revolutum group, F. fasciolaris, H. conoideum. Th e helminth faunas of Mallards from the territory of Ukrainian Polissia and from the Black Sea Region of Ukraine were compared. Th e results of comparison demonstrated a high level of their qualitative similarity.