Two new species of Eimeria (Apicomplexa, Eimeriidae) from tree skinks, Prasinohaema spp. (Sauria: Scincidae), from Papua New Guinea

AbstractBetween September 1991 and June 1992, feces from 4 species of tree skinks, Prasinohaema spp. from Papua New Guinea, were collected and examined for coccidia. Two species, P. flavipes and P. prehensicauda were found to harbor eimerians which are described as new. Oocysts of Eimeria krausi sp. nov. from P. flavipes were ellipsoidal to subspheroidal with a smooth bilayered wall and measured (L × W) 19.2 × 16.9 μm, with a length/width (L/W) ratio of 1.1. Micropyle and oocyst residuum were absent but a fragmented polar granule was present. Sporocysts were ellipsoidal, 9.7 × 6.7 μm, L/W of 1.5. Stieda, subStieda and paraStieda bodies were absent. The sporocyst residuum was composed of many small granules in a compact mass between sporozoites. The sporozoites were sausage-shaped, 11.7 × 2.7 μm, in situ, with an ellipsoidal posterior refractile body and a spheroidal anterior refractile body. Oocysts of Eimeria greeri sp. nov. from P. prehensicauda were ellipsoidal with a smooth bilayered wall, (L × W) 23.0 × 18.3 μm, with a L/W of 1.3. Micropyle and oocyst residuum were absent but a fragmented polar granule was present. Sporocysts were ellipsoidal, 9.7 × 8.4 μm, with a L/W of 1.2. Stieda, subStieda and paraStieda bodies were absent. The sporocyst residuum was composed of many large granules in a compact mass between sporozoites. The sporozoites were sausage-shaped, with an ellipsoidal posterior refractile body and a spheroidal anterior refractile body. We document here the first report of coccidia from skinks of the genus Prasinohaema.

Download Full-text

Two new species of coccidia (A picomplexa: Eimeriidae) from Eumeces fasciatus (Sauria: Scincidae) in Arkansas

Canadian Journal of Zoology ◽

10.1139/z91-283 ◽

1991 ◽

Vol 69 (8) ◽

pp. 2028-2030 ◽

Cited By ~ 11

Author(s):

Steve J. Upton ◽

Chris T. McAllister ◽

Stanley E. Trauth

Keyword(s):

New Species ◽

Polar Granule ◽

Shape Index ◽

Refractile Body ◽

Biliary Epithelium ◽

Two New Species ◽

Intestinal Contents ◽

Length Width ◽

Oocyst Residuum

Two new species of coccidia were recovered from the intestinal contents of Eumeces fasciatus from Arkansas and are described. Oocysts of Eimeria fasciatus sp.nov. sporulate endogenously and are cylindrical, 34.9 × 16.2 (32.0–36.2 × 15.2–17.4) μm, shape index (length/width) 2.2 (1.9–2.3). Micropyle and oocyst residuum absent; polar granule present. Sporocysts ellipsoidal, 12.0 × 8.7 (10.4–13.2 × 8.0–9.4) μm, without Stieda or substieda bodies; shape index 1.4 (1.1–1.5). Sporozoites each contain a single spherical posterior refractile body. This coccidian was found to infect the biliary epithelium. Oocysts of Isospora scinci sp.nov. sporulate exogenously and are subspherical, 26.5 × 24.3 (21.6–31.2 × 18.2–27.2) μm; shape index 1.1 (1.0–1.2). Micropyle, oocyst residuum, and polar granule absent. Sporocysts ovoidal, 14.9 × 10.4 (12.0–16.0 × 9.4–11.6) μm, with Stieda and substieda bodies; shape index 1.4 (1.2–1.6). Sporozoites each with anterior and posterior refractile bodies. The site of infection of this species was not determined.

Download Full-text

Isospora albicollis (Apicomplexa: Eimeriidae) in thrushes Turdus spp. (Passeriformes: Turdidae), in southeastern Brazil

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612017006 ◽

2017 ◽

Vol 26 (2) ◽

pp. 231-234 ◽

Cited By ~ 2

Author(s):

Irlane Faria de Pinho ◽

Lidiane Maria da Silva ◽

Mariana Borges Rodrigues ◽

Mariana de Souza Oliveira ◽

Bruno do Bomfim Lopes ◽

...

Keyword(s):

National Park ◽

Polar Granule ◽

Refractile Body ◽

Wide Distribution ◽

Stieda Body ◽

Southeastern Brazil ◽

New Host ◽

Sporocyst Residuum ◽

New Localities ◽

Oocyst Residuum

Abstract The aim of the present study was to report and describe Isospora albicollis Lainson and Shaw, 1989 parasitizing a white-necked thrush Turdus albicollis Vieillot, 1818 and a pale-breasted thrush Turdus leucomelas Vieillot, 1818 in two different localities: the Itatiaia National Park and Cacaria, in southeastern Brazil. The oocysts identified were ovoidal, 24.4 × 19.7 μm, with a smooth, bilayered wall, around 1.4 μm thick. Oocyst residuum was absent, but a micropyle and a polar granule were present. The sporocysts were ellipsoidal, 15.4 × 10.1 μm. The Stieda body was knob-like to rounded and the sub-Stieda body was prominent and wide. Sporocyst residuum was present, usually as a cluster of granules that appear to be membrane-bounded. The sporozoites were vermiform with one posterior refractile body and a centrally located nucleus. Besides recording the new host T. leucomelas, the identification of I. albicollis in the Itatiaia National Park and Cacaria, in southeastern Brazil, provide records of new localities for its parasitism, and reveals the wide distribution and dispersion of this coccidium in Brazil.

Download Full-text

A new species of Eimeria (Apicomplexa: Eimeriidae) from tri-colored bats, Perimyotis subflavus (Chiroptera: Vespertilionidae), from the Ouachitas of Arkansas

Acta Parasitologica ◽

10.2478/s11686-014-0297-0 ◽

2014 ◽

Vol 59 (4) ◽

Cited By ~ 3

Author(s):

Chris McAllister ◽

R. Seville ◽

Robert Arlen ◽

Matthew Connior

Keyword(s):

New Species ◽

Polar Granule ◽

Concurrent Infection ◽

Sporocyst Residuum ◽

The Third ◽

Coccidian Parasites ◽

Length Width ◽

Measured Length ◽

A New Species ◽

Oocyst Residuum

AbstractBetween February 2013 and October 2013, eleven tri-colored bats, Perimyotis subflavus were collected from Marion, Polk, and Searcy counties, Arkansas, and their faeces examined for coccidian parasites. Two of eleven (18%) harboured an eimerian that we describe here as new. Oocysts of Eimeria mcdanieli sp. n. were ellipsoidal to elongate with a bi-layered wall and measured (length × width, L × W) 28.3 × 17.9 μm, with an L/W ratio of 1.6. A micropyle and oocyst residuum were absent but a single polar granule was present. Sporocysts were ovoidal, 12.6 × 8.3 μm, with an L/W ratio of 1.5. A pronounced, nipple-like Stieda body was present as well as a substieda body. A sporocyst residuum was present as dispersed bubble-like granules. This is the third coccidian described from tri-colored bats and the sixth species reported from Arkansas chiropterans. In addition, both infected bats harbored a concurrent infection of Eimeria heidti McAllister, Burt, Seville, and Robison, 2011.

Download Full-text

Isospora ramphoceli n. sp. (Apicomplexa: Eimeriidae) from the Brazilian tanager (Aves: Passeriformes: Thraupidae) Ramphocelus bresilius dorsalis Sclater, 1855

Zootaxa ◽

10.11646/zootaxa.2650.1.5 ◽

2010 ◽

Vol 2650 (1) ◽

pp. 57 ◽

Cited By ~ 4

Author(s):

BRUNO PEREIRA BERTO ◽

WALTER FLAUSINO ◽

HERMES RIBEIRO LUZ ◽

ILDEMAR FERREIRA ◽

CARLOS WILSON GOMES LOPES

Keyword(s):

Polar Granule ◽

Refractile Body ◽

Stieda Body ◽

Sporocyst Residuum ◽

Coccidian Species ◽

Oocyst Residuum

In the current study, a new coccidian species (Protozoa: Apicomplexa: Eimeriidae) collected from the Brazilian tanager Ramphocelus bresilius dorsalis Sclater, 1855 is reported from Brazil. Isospora ramphoceli n. sp. has oocysts which are spherical to sub-spherical, 23.7 × 22.8 μ m, with smooth, bilayered wall, ~1.2 μ m thick. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ellipsoidal or slightly ovoidal, 16.0 × 11.4 µm. Stieda body knob-like and prominent and substieda body large and homogeneous. Sporocyst residuum is composed of granules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. This is the sixth description of an isosporoid coccidium infecting R. b. dorsalis and the twelfth description from Thraupidae.

Download Full-text

Isospora coerebae n. sp. (Apicomplexa: Eimeriidae) from the bananaquit Coereba flaveola (Passeriformes: Coerebidae) in South America

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612011000100005 ◽

2011 ◽

Vol 20 (1) ◽

pp. 22-26 ◽

Cited By ~ 5

Author(s):

Bruno Pereira Berto ◽

Walter Flausino ◽

Hermes Ribeiro Luz ◽

Ildemar Ferreira ◽

Carlos Wilson Gomes Lopes

Keyword(s):

New Species ◽

South America ◽

Polar Granule ◽

Refractile Body ◽

Coccidian Parasite ◽

Sporocyst Residuum ◽

Size And Shape ◽

Oocyst Residuum ◽

Coereba Flaveola

The present study describes a new isosporoid coccidian parasite from the bananaquit Coereba flaveola, in Brazil. This new species is similar to I. cagasebi, but it can be distinguished by the size and shape of Stieda and susbstieda bodies. Isospora coerebae n. sp. oocysts are spheroidal to sub-spheroidal, 24.8 × 23.3 µm, with a smooth and bi-layered wall, ~1.2 µm. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are elongate ovoidal, 17.9 × 10.9 µm. Stieda and substieda bodies are present. Sporocyst residuum is present and sporozoites have a posterior refractile body.

Download Full-text

The round stingray, Urolophus halleri (Rajiformes: Dasyatidae), as a host for Eimeria chollaensis sp.nov. (Apicomplexa: Eimeriidae)

Canadian Journal of Zoology ◽

10.1139/z88-301 ◽

1988 ◽

Vol 66 (9) ◽

pp. 2049-2052 ◽

Cited By ~ 3

Author(s):

Steve J. Upton ◽

Scott Lyell Gardner ◽

Donald W. Duszynski

Keyword(s):

Gulf Of California ◽

Polar Granule ◽

Refractile Body ◽

Stieda Body ◽

Sporocyst Residuum ◽

Spiral Valve ◽

Spherical Mass ◽

Oocyst Residuum

Eimeria chollaensis sp.nov. (Apicomplexa: Eimeriidae) is described from the contents of the spiral valve of the round stingray, Urolophus halleri Cooper (Rajiformes: Dasyatidae), from the Gulf of California, Sonora, Mexico. Oocysts are ovoid, 13.3 × 9.7 (11.2–16.0 × 8.0–10.8) μm, with a smooth, thin, single-layered wall. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 8.9 × 4.9 (8.0–10.0 × 4.2–5.6) μm, and possess a Stieda body but no substieda body. Sporozoites are elongate, with numerous transverse striations anteriorly and a single, ovoid refractile body. The sporocyst residuum consists of a compact spherical mass 2.5 (2.0–3.4) μm in diameter.

Download Full-text

Two new Isospora species from the saffron finch, Sicalis flaveola in Brazil

Acta Parasitologica ◽

10.2478/s11686-011-0051-9 ◽

2011 ◽

Vol 56 (3) ◽

Cited By ~ 5

Author(s):

Cleide Coelho ◽

Bruno Berto ◽

Daniel Neves ◽

Vinícius Oliveira ◽

Walter Flausino ◽

...

Keyword(s):

South America ◽

Polar Granule ◽

Common Species ◽

Refractile Body ◽

Stieda Body ◽

Sporocyst Residuum ◽

Coccidian Species ◽

Oocyst Residuum

AbstractTwo new coccidian species (Protozoa, Apicomplexa, Eimeriidae) are reported from the saffron finch Sicalis flaveola Linnaeus, 1766, a very common species in South America. Isospora cetasiensis sp. nov. oocysts are subspherical to ellipsoidal, 23.1 × 21.6 μm, with smooth, bilayered wall, ∼1.0 μm. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ovoidal, 15.1 × 10.9 μm. Stieda body is knob-like and substieda body is rounded. Sporocyst residuum is composed of many scattered granules and spherules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus. Isospora sicalisi sp. nov. oocysts are subspherical to ellipsoidal, 27.5 × 25.2 μm, with a smooth, bilayered wall, ∼1.1 μm. Micropyle, oocyst residuum and polar granule are absent. Sporocysts are ellipsoidal, 17.2 × 11.7 μm. Stieda body is knob-like and substieda body is trapezoidal. Sporocyst residuum is composed of scattered granules and spherules of different sizes. Sporozoites are vermiform with one refractile body and a nucleus.

Download Full-text

The coccidia (Apicomplexa: Eimeriidae) of Caudata (Amphibia), with descriptions of two new species from North America

Canadian Journal of Zoology ◽

10.1139/z93-336 ◽

1993 ◽

Vol 71 (12) ◽

pp. 2410-2418 ◽

Cited By ~ 8

Author(s):

Steve J. Upton ◽

Chris T. McAllister ◽

Stanley E. Trauth

Keyword(s):

New Species ◽

North America ◽

Polar Granule ◽

Shape Index ◽

Kidney Bean ◽

Two New Species ◽

Length Width ◽

Plethodon Albagula ◽

Oocyst Residuum ◽

Taxonomic Summary

Over 300 caudate Amphibia were surveyed for coccidia in North America. Two new species of coccidia (Apicomplexa: Eimeriidae) are described. Oocysts of Eimeria opacum sp.nov. from Ambystoma opacum are spherical to subspherical, rarely ellipsoidal, 29.5 × 28.1 (27–32 × 22–31) μm, and have a shape index (length/width) of 1.05 (1.0–1.4). A micropyle, oocyst residuum, and polar granule are absent. Sporocysts are ellipsoidal to kidney-bean shaped, 17.4 × 9.1 (16–21 × 8–11) μm, with a shape index of 1.92 (1.6–2.3). Sporocysts are unusual in that they are encased in a second, more fragile wall that thins to form membranes at the poles; Stieda and substieda bodies are absent. Oocysts of Isospora hightoni sp.nov. from Plethodon albagula are spherical, rarely subspherical, 22.9 × 22.8 (21–24 × 21–24) μm, with a shape index of 1.0 (1.0–1.04). A micropyle and polar granule are absent, but a delicate oocyst residuum was noted in 13/40 (33%) of the oocysts. Sporocysts are ellipsoidal, 16.6 × 11.1 (14.5–17.5 × 10.5–12) μm, with a shape index of 1.5 (1.4–1.6); Stieda and substieda bodies are present. In addition to the species described herein, a taxonomic summary is provided of the known coccidia from Caudata, with the species E. nipponensis sp.nov., E. pyrrhogaster sp.nov., and E. saitamaensis sp.nov. assigned to previously reported coccidia erroneously assigned to named species.

Download Full-text

Description of the oocysts of Isospora pachydactyli sp.nov. (Apicomplexa: Eimeriidae) from Bibron's gecko, Pachydactylus bibronii (Reptilia: Gekkonidae)

Canadian Journal of Zoology ◽

10.1139/z88-088 ◽

1988 ◽

Vol 66 (3) ◽

pp. 597-598 ◽

Cited By ~ 7

Author(s):

Steve J. Upton ◽

Paul S. Freed

Keyword(s):

West Africa ◽

Polar Granule ◽

Shape Index ◽

Stieda Body ◽

Sporocyst Residuum ◽

South West ◽

Granular Mass ◽

South West Africa ◽

Length Width ◽

Oocyst Residuum

Isospora pachydactyli sp.nov. (Apicomplexa: Eimeriidae) is described from the feces of Pachydactylus bibronii bibronii from Namibia (South-West Africa). Oocysts sporulate endogenously and are spherical or subspherical, 27.4 × 27.1 (25.2–29.6 × 25.2–29.6) μm, with a bilayered wall ca. 1.5 μm thick; shape index (length/width) 1.0 (1.0–1.1). Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 15.4 × 10.6 (14.4–16.8 × 9.6–11.2) μm, with Stieda and substieda bodies. The posterior end of the sporocyst is drawn out slightly to resemble a second Stieda body. Sporocyst residuum present, consisting either of a compact granular mass or of scattered granules. Sporozoites vermiform, with spherical anterior and posterior refractile bodies.

Download Full-text

Description of Eimeria bubonis sp.n. (Protozoa: Eimeriidae) and Caryospora bubonis sp.n. (Protozoa: Eimeriidae) in the great horned owl, Bubo virginianus (Gmelin), of Saskatchewan

Canadian Journal of Zoology ◽

10.1139/z81-030 ◽

1981 ◽

Vol 59 (2) ◽

pp. 170-173 ◽

Cited By ~ 10

Author(s):

Richard J. Cawthorn ◽

P. H. G. Stockdale

Keyword(s):

New Species ◽

Outer Layer ◽

Polar Granule ◽

Oocyst Wall ◽

Bubo Virginianus ◽

Sporocyst Residuum ◽

Two New Species ◽

Sporocyst Wall ◽

Oocyst Residuum

Two new species of Eimeriidae are described from the great horned owl, Bubo virginianus (Gmelin), of Saskatchewan. The subspherical oocysts of Eimeria bubonis sp.n. are 22.8 ± 2.7 μm (18–30) long and 21.7 ± 2.4 μm (16–29) wide. The spindle-shaped sporocysts are 12.7 ± 1.1 μm (9.5–15.0) long and 7.8 ± 0.7 μm (5.8–10.0) wide. The polar granule, Steida body, and sporocyst residuum are present; the micropyle and oocyst residuum are absent. The oocyst wall is 0.8 μm thick, with a thick, clear outer layer and a thin, dark inner layer. Sporozoites, with a prominent conoid at the anterior end, are 13.1 ± 1.5 μm (10.0–16.3) long and 2.6 ± 0.3 μm (2.0–4.8) wide.The subspherical oocysts of Caryospora bubonis sp.n. are 43.9 ± 3.4 μm (38–52) long and 40.2 ± 2.8 μm (33–47) wide. The subspherical sporocysts are 26.6 ± 3.4 μm (20–33) long and 25.6 ± 2.4 μm (20–32) wide. The sporocyst residuum is present; the polar granule, Steida body, and oocyst residuum are absent. The oocyst wall is 1.1 μm thick, with a thick, clear outer layer and a thin, dark inner layer. The sporocyst wall is 0.8 μm thick with a thick, clear outer layer and a thin, dark inner layer. Sporozoites, with a prominent conoid at the anterior end, are 15.5 ± 1.9 μm (13.0–20.8) long and 2.5 ± 0.2 μm (2.3–3.0) wide.In both species, sporulation is complete in 96 h at 21 ± 2 °C.

Download Full-text