Folia Parasitologica, vol. 61 (2014), issue 3

Folia Parasitologica 61[3] 195-200 (2014) | DOI: 10.14411/fp.2014.018

Four new species of coccidia (Apicomplexa: Eimeriidae) from Owen Stanley skinks, Papuascincus stanleyanus (Sauria: Scincidae), from Papua New Guinea

Chris T. McAllister1, Donald W. Duszynski2, Robert N. Fisher3, Christopher C. Austin4
1 Science and Mathematics Division, Eastern Oklahoma State College, Idabel, Oklahoma, USA;
2 Department of Biology, University of New Mexico, Albuquerque, New Mexico, USA;
3 U.S. Geological Survey, Western Ecological Research Center, San Diego Field Station, San Diego, California, USA;
4 Department of Biological Sciences and Museum of Natural Sciences, Louisiana State University, Baton Rouge, Louisiana, USA

Between September and November 1991, 12 Owen Stanley skinks, Papuascincus stanleyanus (Booulenger) were collected from various localities on Papua New Guinea and examined for coccidians. Six (50%) were found to harbour four eimerians that we describe here as new. Oocysts of Eimeria burseyi sp. n. were elongate to ellipsoidal with a bilayered wall and measured (length × width, L × W) 36.0 × 24.0 µm, with a L/W ratio of 1.5. Both micropyle and oocyst residuum were absent, but a polar granule was present. Oocysts of Eimeria goldbergi sp. n. were ellipsoidal, with a bilayered wall, and measured 21.4 × 16.1 µm; L/W ratio was 1.3. Both micropyle and oocyst residuum were absent, but a single or fragmented polar granule was present. Oocysts of Eimeria boulengeri sp. n. were spheroidal to slightly subspheroidal, with a thin, single-layered wall that readily collapses, and measured 16.0 µm, L/W ratio was 1.0. Both micropyle and oocyst residuum were absent, but usually one (sometimes two) polar granule(s) were present. Oocysts of Eimeria niuginiensis sp. n. were oblong to tapered with a bilayered wall, and measured 20.0 × 13.1 µm; L/W ratio was 1.5. A micropyle, oocyst residuum and polar granule were absent. To our knowledge, these represent the only coccidians ever described from P. stanleyanus.

Keywords: Coccidia, Eimeria, taxonomy, oocysts, taxonomy, hosts, Reptilia

Received: August 19, 2013; Accepted: November 21, 2013; Prepublished online: January 10, 2014; Published: June 19, 2014


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