Redescription of Eimeria ovata Duncan, 1968 (Apicomplexa: Eimeriidae) from the gray-collared Chipmunk Neotamias cinereicollis Allen (Rodentia: Sciuridae).

IF 1.2 4区医学 Q4 PARASITOLOGY

Systematic Parasitology Pub Date : 2025-04-22 DOI:10.1007/s11230-025-10231-1

John A Hnida

引用次数: 0

Abstract

Eimeria ovata Duncan, 1968 is redescribed from 2 of 39 (5%) gray-collared chipmunks Neotamias cinereicollis Allen in Arizona, USA. Sporulated oöcysts of this species are ovoidal, 26.3 × 20.3 (23-28 × 16-22) µm, with a length/width ratio of 1.4 (1.2-1.6), a pitted, bi-layered wall, and 0-2 polar granules; oöcyst residuum and micropyle are absent. Sporocysts are ovoidal, 13.3 × 8.2 (12-15 × 7-9) µm, with a length/width ratio of 1.7 (1.6-1.0), a Stieda body, and sporocyst residuum; sporozoites contain a posterior refractile body. The measurements and structural features of these oöcysts are similar to those reported for E. ovata described from the eastern chipmunk Tamias striatus. This is a new geographic record for this coccidian and the first report to include photomicrographs of its sporulated oöcyst.

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灰领花栗鼠（啮齿目：花栗鼠科）中艾美耳虫的再描述（顶复合体：艾美耳虫科）。

美国亚利桑那州39只灰领花栗鼠中的2只（5%）重新描述了1968年的艾美利亚·奥瓦塔·邓肯。孢子oöcysts卵球形，直径26.3 × 20.3 （23-28 × 16-22）µm，长/宽比为1.4(1.2-1.6)，胞壁呈凹坑状，双层，0-2极粒；Oöcyst未见残体和微孔。孢子囊为卵球形，直径13.3 × 8.2 （12-15 × 7-9）µm，长/宽比为1.7(1.6-1.0)，孢子体呈圆形，孢子囊残；孢子子含有一个后折射体。这些oöcysts的测量和结构特征与报道的东部花栗鼠Tamias striatus的E. ovata相似。这是该球虫的新地理记录，也是第一份包括其孢子oöcyst显微照片的报告。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Systematic Parasitology 医学-寄生虫学

CiteScore

2.20

自引率

23.10%

发文量

审稿时长

6-12 weeks

期刊介绍： Systematic Parasitology publishes papers on the systematics, taxonomy and nomenclature of the following groups: Nematoda (including plant-parasitic), Monogenea, Digenea, Cestoda, Acanthocephala, Aspidogastrea, Cestodaria, Arthropoda (parasitic copepods, hymenopterans, mites, ticks, etc.), Protozoa (parasitic groups), and parasitic genera in other groups, such as Mollusca, Turbelleria, etc. Systematic Parasitology publishes fully illustrated research papers, brief communications, and fully illustrated major revisions. In order to maintain high standards, all contributors describing new taxa are asked to state clearly where the holotype is deposited and to make paratypes available for examination by the referees. It is recognized that, in some cases, this may cause problems for the authors, but it is hoped that by adhering to this rule authors may be protected against rapid synonymy of their taxa, and the types will be preserved for posterity.