A new species of the late Miocene charadriiform bird (Aves: Charadriiformes), with a summary of all Paleogene and Miocene Charadrii remains

A new species, Cherevychnavis umanskae sp. nov., (Aves: Charadriiformes) from the late Miocene of Ukraine is described, and all known fossils of the suborder Charadrii from the Paleogene and Miocene are summarized. The combination of preserved characters allows us to assign the new species to the suborder Charadrii but its more exact systematic position remains uncertain. Morphologically, the new species is most similar to the extant Haematopus and Recurvirostra, and in terms of size to Haematopus, but it clearly differs from all extant genera of Charadrii. The current remains fill the temporal and spatial gaps in the fossil record of charadriiform birds; they constitute the first record of the Charadrii in eastern-most Europe, and add to our still insufficient knowledge of the late Miocene birds.

Echinoparyphium limosorum n. sp. (Trematoda: Echinostomatidae) from Black-tailed Godwit, Limosa limosa (Aves, Charadriiformes) in Slovakia

Echinostomatid trematode Echinoparyphium limosorum n. sp. from the charadriiform bird Limosa limosa is described on basis of morphometrical study of museum material. The new species is characterized by medium-sized body up to 4.9 mm long, reniform head collar up to 511 wide, armed with 48–51 collar spines up to 91 µm, arranged in double row. The new species is largely similar to Echinoparyphium recurvatum, however, the most remarkable difference lays in the higher number of collar spines which are 48–51 in E. limosorum n. sp. but 45 in E. recurvatum. The authors discuss relative impact of numerical generic characters and propose an amending of the diagnosis of The genus Echinoparyphium given by Kostadinova (2005) as follows: Collar spines up to 51, sharply pointed, all in double row.

Sciadiocara denticulata n. sp. (Acuariidae) from Actitis macularia (L.) and other nematodes from spotted sandpiper and black-bellied plover

Seven black-bellied plovers, Squatarola squatarola (L.), from British Columbia and Quebec, and six spotted sandpipers, Actitis macularia (L.), from British Columbia harbored a total of nine species of nematodes. Squatarola squatarola yielded Sciadiocara umbellifera (Molin, 1860), Ancyracanthopsis coronata (Molin, 1860), Viktorocara shejkini Guschanskaya, 1950, Desmidocercella numidica (Seurat, 1920), and Capillaria contorla (Creplin, 1829). Actitis macularia harbored Sciadiocara denticulata n. sp., Ancyracanthopsis coronata, Streptocara c. crassicauda (Creplin, 1829), Capillaria (?) totani (von Linstow, 1875), and a third-stage (?) Skrjabinocerca sp. Sciadiocara denticulata n. sp. is smaller and noticeably more delicate than S. umbellifera; its cephalic lappets are narrow and bear a fringe of minute teeth, and it has an elaborate left spicular apex. Sciadiocara umbellifera and V. shejkini are reported for the first time from North America, and D. numidica (syn. Desmidocerca nudicauda Mawson, 1957) for the first time in a charadriiform bird.