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From Emerald Tree Skinks, Lamprolepis Smaragdina (Lesson) (Sauria: Scincidae) from Papua New Guinea and the Philippines Chris T

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From Emerald Tree Skinks, Lamprolepis Smaragdina (Lesson) (Sauria: Scincidae) from Papua New Guinea and the Philippines Chris T Two new species of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) from emerald tree skinks, Lamprolepis smaragdina (Lesson) (Sauria: Scincidae) from Papua New Guinea and the Philippines Chris T. McAllister, R. Scott Seville, Donald W. Duszynski, Sarah E. Bush, et al. Systematic Parasitology An International Journal ISSN 0165-5752 Volume 86 Number 2 Syst Parasitol (2013) 86:165-171 DOI 10.1007/s11230-013-9442-7 1 23 Your article is protected by copyright and all rights are held exclusively by Springer Science +Business Media Dordrecht. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy Syst Parasitol (2013) 86:165–171 DOI 10.1007/s11230-013-9442-7 Two new species of Eimeria Schneider, 1875 (Apicomplexa: Eimeriidae) from emerald tree skinks, Lamprolepis smaragdina (Lesson) (Sauria: Scincidae) from Papua New Guinea and the Philippines Chris T. McAllister • R. Scott Seville • Donald W. Duszynski • Sarah E. Bush • Robert N. Fisher • Christopher C. Austin Received: 14 June 2013 / Accepted: 22 August 2013 Ó Springer Science+Business Media Dordrecht 2013 Abstract Two new species of Eimeria Schneider, with a smooth, colourless, bi-layered wall, measure 1875, from emerald tree skinks, Lamprolepis smar- 19.9 9 15.8 lm, L/W 1.3; both micropyle and oo¨cyst agdina (Lesson) are described from specimens col- residuum are absent, but one to four polar granules are lected in Papua New Guinea (PNG) and the present. Sporocysts are ovoidal to ellipsoidal, Philippines. Oo¨cysts of Eimeria nuiailan n. sp. from 10.3 9 5.8 lm, L/W 1.8, and the wall is composed the only L. smaragdina from PNG are ovoidal, with a of two valves joined by a longitudinal suture; neither smooth, colourless, bi-layered wall, measure Stieda nor sub-Stieda bodies are present; a sporocyst 23.7 9 19.1 lm, and have a length/width (L/W) ratio residuum is composed of dispersed granules. of 1.3; both micropyle and oo¨cyst residuum are absent, but a fragmented polar granule is present. Sporocysts are ovoidal to ellipsoidal, 11.9 9 7.0 lm, L/W 1.7, Introduction and the wall is composed of two valves joined by a longitudinal suture; neither Stieda nor sub-Stieda The emerald tree skink, Lamprolepis smaragdina bodies are present; a sporocyst residuum is present (Lesson) is a fairly common and widespread arboreal as a compact mass of granules. Sporozoites are lizard that occurs from the Wallacea islands, the elongate, 14.6 9 2.6 lm, and contain anterior and Philippines, New Guinea, and Melanesia, to islands of posterior refractile bodies with a nucleus between the western Pacific (Perry & Buden, 1999; Linkem them. Oo¨cysts of Eimeria auffenbergi n. sp. from L. et al., 2012). It is one of the most common reptiles in smaragdina collected in the Philippines are ovoidal, villages, coconut plantations, secondary vegetation C. T. McAllister (&) S. E. Bush Science and Mathematics Division, Eastern Oklahoma Department of Biology, University of Utah, Salt Lake State College, Idabel, OK 74745, USA City, UT 84112, USA e-mail: [email protected] R. N. Fisher R. S. Seville San Diego Field Station, Western Ecological Research Department of Zoology and Physiology, Center, U. S. Geological Survey, 4165 Spruance Road, University of Wyoming/Casper Center, Casper, Suite 200, San Diego, CA 92101-0812, USA WY 82601, USA C. C. Austin D. W. Duszynski Department of Biological Sciences and Museum of Department of Biology, University of New Mexico, Natural Sciences, Louisiana State University, Baton Albuquerque, NM 87131, USA Rouge, LA 70803, USA 123 Author's personal copy 166 Syst Parasitol (2013) 86:165–171 and gardens, where it occurs in foliage of bushes and guidelines of Wilber et al. (1998). A symbiotype on tree trunks (Foufopoulos & Richards, 2007). The voucher specimen of L. smaragdina from PNG was emerald tree skink feeds mainly on beetles, larval accessioned into the Texas Natural History Collection lepidopterans, and fruit (Auffenberg & Auffenberg, (TNHC), Austin, Texas, USA, and those from the 1988). Philippines were accessioned into Natural History Although information is available on the ecology of Museum, University of Kansas (KUMNH), Lawrence, L. smaragdina (see Auffenberg & Auffenberg, 1988; Kansas, USA. Photosyntype vouchers of sporulated Perry & Buden, 1999; Linkem et al., 2012), little, to oo¨cysts were accessioned into the United States our knowledge, has been published on its parasites. National Parasite Collection (USNPC), Beltsville, For example, Austin & Perkins (2006) examined Maryland, USA. Lizard taxonomy follows the TIGR several L. smaragdina for hemoparasites, but did not reptile database (Uetz, 2013) and Zug (2013). find any, and Goldberg et al. (2010) examined 40 L. smaragdina from PNG and identified five nematode species (four as adult, one as encysted larval para- Results sites), but no flatworm or acanthocephalan species. To date, there are no reports of coccidian parasites from All three L. smaragdina from PNG and the Philippines this skink. Here, we document the sporulated oo¨cysts were found to be passing oo¨cysts of what we believe are of two coccidian parasites, presumably Eimeria spe- two undescribed coccidians; their descriptions follow. cies (see Remarks sections), from emerald tree skinks collected from PNG and the Philippines. Eimeria nuiailan n. sp. Type-host: Emerald treeskink, Lamprolepis smarag- Materials and methods dina (Lesson) (Sauria: Scincidae), symbiotype TNHC 51465 (field number CCA 754) collected During June, 1991, one adult L. smaragdina was June 1991. collected by hand from New Ireland, PNG, and in Type-locality: Kavieng, New Ireland Province, PNG June, 2009, two adult L. smaragdina were collected by (2.566466°S, 150.798547°E), at sea level. hand from Barangay Zabali, Campus of the Aurora Type-material: Photosyntype (see Duszynski, 1999)as State College of Technology (ASCOT), Luzon, Phil- USNPC No. 106965. ippines. Fresh faecal samples were collected from Prevalence: 1/1 in the type-host. each individual and placed in individual vials con- Sporulation time: Unknown. Specimens were col- taining 2.5% (w/v) aqueous potassium dichromate lected in the field, stored in K2Cr2O7 solution, and not (K2Cr2O7) (Gardner et al., 2012). They were later examined until 300 days later. examined for coccidia by light microscopy after Site of infection: Unknown. Oo¨cysts were passed in flotation in Sheather’s sugar solution (specific grav- faeces and host tissues were not collected or preserved ity = 1.30). All three samples contained unsporulated for histological sectioning. and partially sporulated oo¨cysts and they were placed Etymology: The specific epithet is given for the in Petri dishes containing 2.5% K2Cr2O7 and allowed Province of New Ireland in Tok Pisin, the official to complete sporulation for five days at room temper- language of PNG. It is a form of Melanesian Pidgin ature (c.23 °C). Still later, samples were again exam- English that was developed in the early 1800’s. ined after flotation and measurements were taken on at least 25 oo¨cysts using a calibrated ocular micrometer or OlympusÓ cellSens 1.7 digital imaging software, Description (Figs. 1, 2, 5) and reported in micrometres, with means followed by the ranges in parentheses. Photographs were taken Sporulated oo¨cyst using Nomarski interference-contrast (DIC) optics. Oo¨cyst (n = 25) colourless, smooth, ovoidal, Oo¨cysts were between 300 (PNG) and c.1,095 (Phil- 23.7 9 19.1 (21–26 9 17–22); length/width (L/W) ippines) days old when measured and photographed. ratio 1.3 (1.2–1.4). Wall bi-layered, c.1.2–1.4; outer Descriptions of the oo¨cysts and sporocysts follow the layer c.0.8–1.0, inner layer c.0.4–0.6. Micropyle 123 Author's personal copy Syst Parasitol (2013) 86:165–171 167 Figs. 1–4 DIC photomicrographs of oo¨cysts of Eimeria nuiailan n. sp. (1–2) and Eimeria auffenbergi n. sp. (3–4). Abbreviations: PG, polar granule; SR, sporocyst residuum; SP, sporocyst; SZ, sporozoite; VS, valve suture. Scale-bar:10lm absent, oo¨cyst residuum absent; fragmented polar sub-Stieda body and para-Stieda body absent; sporo- granule present. cyst residuum (n = 10) spheroidal to subspheroidal, 4.4 9 3.2 (3–6 9 3–4) composed of compact mass of Sporocyst granules. Sporocysts (n = 20) four, colourless, smooth, ovoidal to ellipsoidal, 11.9 9 7.0 (10–14 9 6–8); L/W ratio Sporozoite 1.7 (1.4–2.1); wall single-layered, c.0.6, composed of Sporozoites (n = 10) two, sausage-shaped, 14.6 9 2 valves, joined by a longitudinal suture. Stieda body, 2.6 (13–17 9 2–3) in situ, lying along one side of 123 Author's personal copy 168 Syst Parasitol (2013) 86:165–171 Figs. 5–6 Composite line drawings of oo¨cysts of Eimeria nuiailan n. sp. (5) and Eimeria auffenbergi n. sp. (6) sporocyst; single ellipsoidal posterior refractile body from those of E. zugi by having a much smaller oo¨cyst (n = 5), 3.6 9 2.4 (3–5 9 2–3); spheroidal anterior L/W ratio (1.3 vs 1.6). refractile body (n = 5), 2.0 (1.6–2.2), with nucleus Generic classification of the coccidia, historically, between them.
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