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1

Diurnal changes in nuclei and nucleoli volumes in liver cells of sand lizard Lacerta agilis [L.] in variable light conditions

100%

Kaczmarzyk M.

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nr 1-4

2

Redescription of the nematode parasites of lizards: Strongyluris oscari Travassos, 1923 (Heterakidae) from Brazil and Pharyngodon mamillatus (Linstow, 1897) (Pharyngodonidae) from Egypt

84%

Pereira F. B. , Luque J. L. , Tavares L. E. R.

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tom 62

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nr 4

3

Female reproductive life history traits of the meadow lizard, Darevskia praticola [Eversmann, 1834] [Squamata: Lacertidae] from the westernmost boundary of the species range

84%

Ljubisavljevic K. , Dzukic G. , Kalezic M. L.

Polish Journal of Ecology

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2008

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tom 56

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nr 2

289-297

EN

We presented the first data on female reproductive traits of the meadow lizard Darevskia praticola from the westernmost boundary of the species range (Peridanubian Serbia). Mating occurs during April and May, oviposition period occurs in June, and hatching takes place in July. Females mature at body sizes of 49.5 mm of snout-vent length (SVL). One clutch is produced annually. The average clutch size of 5.7 eggs (range 4 – 8) represents the largest recorded for this species. Clutch size and clutch mass increased significantly with the mother’s SVL. There was no evidence of the predicted trade-off between egg size and clutch size, as well as of variation in egg size associated with maternal SVL. The relative clutch mass (RCM) was rather high (0.60) for lacertid species and was not correlated with female size.

4

Helminth parasites of two sympatric lizards, Enyalius iheringii and E.perditus [Leiosauridae], from an Atlantic Rainforest area of southeastern Brazil

84%

Vrcibradic D. , Anjos L. A. , Vicente J. J. , Bursey C. R.

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nr 2

EN

We present data on helminths harboured by two sympatric species of Enyalius Wagler, 1830 (E. iheringiii Boulenger, 1885 and E. perditus Jackson, 1978) from the Atlantic Rainforest of the Ilha de São Sebastião, in São Paulo state, southeastern Brazil. Six helminth species were found in the hosts: five nematodes (Cosmocerca sp., Oswaldocruzia burseyi Durette-Desset, Anjos et Vrcibradic, 2006, Oswaldocruzia fredi Durette-Desset, Anjos et Vrcibradic, 2006, Rhabdias sp., and Strongyluris oscari Travassos, 1923), and one acanthocephalan (Acanthocephalus sp.). Overall helminth prevalences were relatively high for both species [6/6 (100%) for E. iheringii and 9/14 (64%) for E. perditus]. The helminth assemblages from both host species were depauperate and dominated by generalist helminths with direct life-cycles.

5

New data on the dentition of the scincomorphan lizard Polyglyphanodon sternbergi

84%

Nydam R. L. , Cifelli R. L.

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nr 1

EN

Polyglyphanodon sternbergi Gilmore, 1940 is a large−bodied lizard from the Late Cretaceous of North America distinguished by its transversely oriented, interlocking teeth. Initially the teeth of P. sternbergi were described as smooth and blade−like, but recent discoveries of new specimens from the type locality and re−examination of the original material indicate that the chisel−like teeth of P. sternbergi have small, irregular serrations along the blades. These serrations are similar in size to those found on the teeth of the modern herbivorous lizard Iguana iguana and were likely used in a similar manner to crop vegetation, but was also capable of a degree of oral food processing due to the transverse orientation and interlocking arrangement of the dentition of P. sternbergi. Additionally, the presence of transversely oriented teeth with V−shaped blades in the anterior portion of the tooth row of P. sternbergi represents an additional shared characteristic in tooth structure between P. sternbergi and Dicothodon moorensis, Bicuspidon numerosus, and Peneteius aquilonoius; all transversely−tooth polyglyphandontine lizards from the Cretaceous of North America. It appears that the unique dentitions of Polyglyphanodon sternbergi (large teeth with transverse, serrated blades) and Peneteius aquilonius (small teeth with mammal−like specializations) present by the end of the Cretaceous were derived from a bicuspid, transversely oriented precursor tooth with a V−shaped blade.

6

Infestation of sand lizards [Lacerta agilis] resident in the Northeastern Poland by Ixodes ricinus [L.] ticks and their infection with Borrelia burgdorferi sensu lato

84%

Gryczynska-Siemiatkowska A. , Siedlecka A. , Stanczak J. , Barkowska M.

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nr 2

EN

Sand lizards (Lacerta agilis) were trapped and examined for ticks from May to September in 2002 and 2003 in Northeastern Poland. A total of 233 Ixodes ricinus (L.) ticks (76 larvae and 157 nymphs) was found on 31 of 235 captured lizards (13.2%). The tick infestation is relatively low compared to that of mammals and passerine birds from the same area (Siński et al. 2006, Gryczyńska et al. 2002). Tick infestation depended on the month of capture, being the highest in spring. In autumn no ticks were recorded on any of the captured lizards. The oldest lizards carried the highest number of ticks but no differences related to sex of the host were found. All the collected ticks were analysed by PCR for the presence of Borrelia burgdorferi sensu lato, the etiological agents of Lyme disease. Spirochetes were detected in 11 out of 233 (4.7%) ticks tested. Genetic analysis confirmed that the spirochetes are members of the Borrelia afzelii, B. garinii and B. burgdorferi sensu stricto genospecies. Mixed infection were not detected. The prevalence of infection was analysed in relation to months of the capture, age and sex of the lizards, but differences were not statistically significant. The obtained results suggest that lizards are probably not B. burgdorferi reservoirs, but further studies are required to confirm this.

7

New lizards and rhynchocephalians from the Lower Cretaceous of Southern Italy

84%

Evans S. E. , Raia P. , Barbera C.

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nr 3

EN

The Lower Cretaceous (Albian age) locality of Pietraroia, near Benevento in southern Italy, has yielded a diverse assemblage of fossil vertebrates, including at least one genus of rhynchocephalian (Derasmosaurus) and two named lizards (Costasaurus and Chometokadmon), as well as the exquisitely preserved small dinosaur, Scipionyx. Here we describe material pertaining to a new species of the fossil lizard genus Eichstaettisaurus (E. gouldi sp. nov.). Eichstaettisaurus was first recorded from the Upper Jurassic (Tithonian age) Solnhofen Limestones of Germany, and more recently from the basal Cretaceous (Berriasian) of Montsec, Spain. The new Italian specimen provides a significant extension to the temporal range of Eichstaettisaurus while supporting the hypothesis that the Pietraroia assemblage may represent a relictual island fauna. The postcranial morphology of the new eichstaettisaur suggests it was predominantly ground−living. Further skull material of E. gouldi sp. nov. was identified within the abdominal cavity of a second new lepidosaurian skeleton from the same locality. This second partial skeleton is almost certainly rhynchocephalian, based primarily on foot and pelvic structure, but it is not Derasmosaurus and cannot be accommodated within any known genus due to the unusual morphology of the tail vertebrae.

8

Apicomplexa primers amplify Proteromonas (Stramenopiles, Slopalinida, Proteromonadidae) in tissue and blood samples from lizards

67%

Maia J. P. M. C. , Gomez-Diaz E. , Harris D. J.

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nr 4

EN

Microscopy has traditionally been the most common method in parasitological studies, but in recent years molecular screening has become increasingly frequent to detect protozoan parasites in a wide range of vertebrate hosts and vectors. During routine molecular screening of apicomplexan parasites in reptiles using the 18S rRNA gene, we have amplified and sequenced Proteromonas parasites from three lizard hosts (less than 1% prevalence). We conducted phylogenetic analysis to confirm the taxonomic position and infer their relationships with other stramenopiles. Although our phylogeny is limited due to scarcity of molecular data on these protists, our results confirm they are closely related to Proteromonas lacertae. Our findings show that unexpected parasites can be amplified from host samples (blood and tissue) using general procedures to detect hemoparasites, and stress that positive PCR amplifications alone should not be considered as definitive proof of infection by particular parasites. Further validation by sequence confirmation and thorough phylogenetic assessment will not only avoid false positives and biased prevalence estimates but also provide valuable information on the biodiversity and phylogenetic relationships of other parasitic organisms. More generally, our results illustrate the perils of general diagnosis protocols in parasitological studies and the need of cross-validation procedures.

9

A new species of Mathevotaenia [Cestoda, Anoplocephalidae, Linstowiinae] from the lizard Sceloporus malachiticus [Squamata, Phrynosomatidae] from Panama

67%

Bursey C. R. , Goldberg S. R. , Telford S. R.

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nr 1

53-57

EN

Mathevotaenia panamaensis sp. nov. (Cestoda, Anoplocephalidae, Linstowiinae) from a green spiny lizard, Sceloporus malachiticus, collected in Panama is described. This is the first species of Mathevotaenia reported from a lizard host. The new species is most similar to Mathevotaenia bivittata in that mature eggs are concentrated along the lateral margins of the proglottids. Major differences between the two species include oval cirrus sac in M. bivittata, a spherical cirrus sac in M. panamaensis; ovary compact consisting of 10–15 short lobules in M. bivittata, ovary bilobed with each lobe consisting of 3–4 lobules in M. panamaensis.