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Licensed Unlicensed Requires Authentication Published by De Gruyter April 18, 2017

A new species of Oochoristica (Cyclophyllidea: Linstowiidae) from non-native Mediterranean geckos, Hemidactylus turcicus (Sauria: Gekkonidae), from Texas, USA

Chris T. McAllister and Charles R. Bursey
From the journal Acta Parasitologica


A new species of cyclophyllidean tapeworm, Oochoristica harschi sp. nov. is described from 2 of 18 (11%) non-native Mediterranean geckos (Hemidactylus turcicus) collected in June 2016 from Tom Green County, Texas, USA The new species has few characteristics in common with 17 species of Oochoristica previously described from Nearctic reptiles. Of this group, O. harschi is most similar to O. macallisteriBursey and Goldberg, 1996 from the side-blotched lizard, Uta stansburiana from Arizona and California, USA, in number of testes, 14–20 vs. 12–20. However, O. harschi has oval suckers and a long neck compared to the circular suckers and absent neck in O. macallisteri. On comparison with other species of Oochoristica, it was found O. chinensis Jensen, Schmidt and Kuntz, 1983 from the Sino-Japanese realm, O. iguanaeBursey and Goldberg, 1996 from the Neotropical realm, and O. maccoyiBursey and Goldberg, 1966 from the Panamanian realm were most similar to the new species. However, O. harschi can be differentiated by possessing a much longer neck and a shorter cirrus pouch. It can be further differentiated from O. chinensis by possessing an ovoid vs. an irregular vitellarium, from O. iguanae by having a smaller strobilus (65 vs. 110 mm) as well as an ovoid vs. a triangular vitellarium, and from O. maccoyi by having significantly more proglottids (145 vs. 89) and a longer strobilus (65 vs. 20 mm). The new species is the fifth species of Oochoristica reported from non-native H. turcicus and the 18th species described from the Nearctic region.


The Texas Parks and Wildlife Department issued a Scientific Collecting Permit to CTM. We thank Scott L. Gardner (HWML) and Stanley E. Trauth (ASUMZ) for expert curatorial assistance, Hazel L. Harsch for allowing CTM to collect on her property, Charles D. Criscione (Texas A&M University, College Station, Texas) for information on Oochoristica, and two anonymous reviewers for their helpful reviews.


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Received: 2016-9-26
Revised: 2016-12-9
Accepted: 2016-12-30
Published Online: 2017-4-18
Published in Print: 2017-6-1

© 2017 W. Stefański Institute of Parasitology, PAS

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