A new eimeria species parasitic in Isoodon obesulus (Marsupialia: Peramelidae) in Western Australia

M. D. Bennett*, R. P. Hobbs

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

4 Citations (Scopus)

Abstract

Feces from southern brown bandicoots, Isoodon obesulus, inhabiting the Perth metropolitan area were examined using fecal flotation and light microscopy, and were frequently found to contain oocysts (10/24; 42%). To enable formal description of the proposed new Eimeria species, i.e., Eimeria quenda n. sp., fecal oocysts from 1 juvenile male I. obesulus were allowed to sporulate in 2% potassium dichromate (K2Cr2O7) at room temperature. Sporulated oocysts are spheroidal to subspheroidal 24.5 × 23.6 (22.526.0 × 22.524.8) m, with L/W ratio of 1.04 (1.001.13), lack a micropyle and oocyst residuum, and are contained within a smooth trilaminate oocyst wall 1.8 (1.62.0) m thick. Sporocysts are ovoid, 12.6 × 9.2 (12.013.8 × 8.510.0) m, with L/W ratio of 1.37 (1.201.53), have a sporocyst residuum, and 2 comma-shaped sporozoites, each containing 2 spheroidal refractile bodies. Sporulation takes 13 days at room temperature. This is the second formal description of an Eimeria species parasitic in the order Peramelemorphia.

Original languageEnglish
Pages (from-to)1129-1131
Number of pages3
JournalJournal of Parasitology
Volume97
Issue number6
DOIs
Publication statusPublished - Dec 2011

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