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Infection of Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Nematoda: Ascarididae) in a population of captive crested geckoes, Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae)

Published online by Cambridge University Press:  12 February 2020

Diane P. Barton*
Affiliation:
School of Animal & Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia
Paolo Martelli
Affiliation:
Ocean Park Corporation, 180 Wong Chuk Hang Road, Aberdeen, Hong Kong
William Luk
Affiliation:
Ocean Park Corporation, 180 Wong Chuk Hang Road, Aberdeen, Hong Kong
Xiaocheng Zhu
Affiliation:
School of Animal & Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia Graham Centre for Agricultural Innovation (Charles Sturt University and NSW Department of Primary Industries), Charles Sturt University, Wagga Wagga, New South Wales, Australia
Shokoofeh Shamsi*
Affiliation:
School of Animal & Veterinary Sciences, Charles Sturt University, Wagga Wagga, New South Wales, Australia Graham Centre for Agricultural Innovation (Charles Sturt University and NSW Department of Primary Industries), Charles Sturt University, Wagga Wagga, New South Wales, Australia
*
Authors for correspondence: Diane P. Barton, Shokoofeh Shamsi, E-mail: dibarton@csu.edu.au and sshamsi@csu.edu.au
Authors for correspondence: Diane P. Barton, Shokoofeh Shamsi, E-mail: dibarton@csu.edu.au and sshamsi@csu.edu.au

Abstract

Here we report on the infection of captive crested geckos Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae), with adults of the ascaridoid nematode, Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Ascarididae). A population of captive crested geckoes became ill and died within a short period of time. Nematodes were recovered from the crested geckoes examined from within the coelomic cavity, penetrating various organs and migrating through subcutaneous tissues, as well as emerging through the geckos' skin. One gecko was treated with levamisole following surgical excision of nematodes from under the skin; this gecko survived. The potential source of the nematode infection in the captive geckoes is discussed. It is most likely that wild-caught Madagascan mossy geckoes, Uroplatus sikorae Boettger (Reptilia: Gekkonidae), introduced the infection to the colony. Molecular sequences of the nematodes are the first produced for the members of this genus. A redescription of the species and its genetic characterization based on the internal transcribed spacer sequence data is provided, suggesting some of the morphological criteria that have been used in the past to distinguish between Hexametra spp. may have been intraspecific morphological variations.

Type
Research Article
Copyright
Copyright © The Author(s), 2020. Published by Cambridge University Press

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Infection of Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Nematoda: Ascarididae) in a population of captive crested geckoes, Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae)
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Infection of Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Nematoda: Ascarididae) in a population of captive crested geckoes, Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae)
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Infection of Hexametra angusticaecoides Chabaud & Brygoo, 1960 (Nematoda: Ascarididae) in a population of captive crested geckoes, Correlophus ciliatus Guichenot (Reptilia: Diplodactylidae)
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