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

1988 ◽  
Vol 66 (3) ◽  
pp. 597-598 ◽  
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.

Isospora albogularis sp.nov. (Apicomplexa: Eimeriidae) from the yellow-headed gecko, Gonatodes albogularis (Reptilia: Gekkonidae)

1990 ◽  
Vol 68 (6) ◽  
pp. 1266-1267 ◽  
Author(s):  
Steve J. Upton ◽  
Paul S. Freed
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Polar Granule ◽  
Shape Index ◽  
Stieda Body ◽  
Length Width ◽  
A New Species ◽  
Oocyst Residuum

A new species of isosporan was recovered from the fecal contents of three of five yellow-headed geckos, Gonatodes albogularis, collected from Liberia, Guanacaste Province, Costa Rica. Sporulated oocysts of Isospora albogularis sp.nov. are subspherical, 29.5 × 26.9 (26.4–32.0 × 22.4–30.8) μm, with a shape index (length/width) of 1.1 (1.0–1.3). A micropyle, oocyst residuum, and polar granule are absent. Sporocysts are ovoid, 14.9 × 10.8 (13.6–16.0 × 10.2–11.4) μm, with a shape index of 1.4 (1.3–1.5). Both Stieda and substieda bodies are present, and the end opposite to the Stieda body is normally tapered slightly.

scholarly journals A new species of coccidia (Apicomplexa: Eimeriidae) from Cordillera striped shrew-rat, Chrotomys whiteheadi (Rodentia: Muridae), from the Philippines

2014 ◽  
Vol 59 (4) ◽  
Author(s):  
Chris McAllister ◽  
R. Seville ◽  
Donald Duszynski ◽  
Sarah Bush
Keyword(s):  
New Species ◽  
Polar Granule ◽  
The Philippines ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Coccidian Parasites ◽  
Length Width ◽  
Measured Length ◽  
A New Species ◽  
Oocyst Residuum

AbstractDuring July 2011, a single Cordillera striped shrew-rat (Chrotomys whiteheadi) was collected from the Philippines and its faeces examined for coccidian parasites. It harboured an eimerian that we describe here as new. Oocysts of Eimeria macarthuri sp. n. were spheroidal to subspheroidal with a bi-layered wall and measured (length × width, L × W) 18.2 × 17.0 μm, with an L/W ratio of 1.1. A micropyle, oocyst residuum and polar granule were absent. Sporocysts were ovoidal, 9.0 × 6.4 μm, with an L/W ratio of 1.3. A nipple-like Stieda body was present as well as a substieda body. A granular sporocyst residuum was present. To our knowledge, E. macarthuri represents the only coccidian ever described from a rodent of the Philippines.

scholarly journals A new species of Isospora (Apicomplexa: Eimeriidae) from eastern coachwhip, Coluber flagellum flagellum (Reptilia: Ophidia) from Oklahoma

2015 ◽  
Vol 60 (3) ◽  
Author(s):  
Chris T. McAllister ◽  
R. Scott Seville ◽  
Matthew B. Connior
Keyword(s):  
New Species ◽  
Polar Granule ◽  
Stieda Body ◽  
Sporocyst Residuum ◽  
Coccidian Parasites ◽  
Length Width ◽  
Measured Length ◽  
A New Species ◽  
Oocyst Residuum

AbstractBetween June 2013 and August 2014, four eastern coachwhips, Coluber flagellum flagellum were collected from Arkansas (n = 2) and Oklahoma (n = 2) and their faeces examined for coccidian parasites. One (25%) harboured an isosporan that we describe here as new. Oocysts of Isospora kiamichiensis sp. n. were spheroidal to subspheroidal with a uni-layered wall and measured (length × width, L × W) 25.0 × 22.2 μm, with an L/W ratio of 1.1. A micropyle, oocyst residuum and polar granule were absent. Sporocysts were ovoidal, 13.9 × 9.4 μm, with an L/W ratio of 1.5. A pronounced, button-like Stieda body was present as well as a substieda body. A sporocyst residuum was present as dispersed granules. This is the first isosporan and fourth coccidian reported from eastern coachwhip snakes. In addition, a single oocyst of an unknown choleoeimerian was recovered from this host.

A new coccidian parasite (Apicomplexa: Eimeriidae: Eimeria) from the southern black racer, Coluber constrictor priapus (Reptilia: Ophidia: Colubridae) from Arkansas, USA

2018 ◽  
Vol 63 (3) ◽  
pp. 558-562
Author(s):  
Chris T. McAllister ◽  
John A. Hnida ◽  
Henry W. Robison
Keyword(s):  
Polar Granule ◽  
Stieda Body ◽  
Coccidian Parasite ◽  
Sporocyst Residuum ◽  
Coluber Constrictor ◽  
Coccidian Parasites ◽  
Oocyst Residuum

AbstractBetween April 2012 and October 2017, 18 southern black racers,Coluber constrictor priapus, were collected from nine counties of Arkansas (n= 13) and McCurtain County, Oklahoma (n= 5) and their faeces examined for coccidian parasites. One of 18 (6%)C. c. priapusharboured an eimerian that we describe here as new. Oocysts ofEimeria dunnisp. nov. were subspheroidal with a lightly pitted bi-layered wall measuring L × W 24.0 × 21.1 and L/W ratio of 1.2. A micropyle was absent but an oocyst residuum and polar granule were present. Sporocysts were ovoidal and measured 11.9 × 8.1 with L/W of 1.5. A Stieda body was present but substieda and parastieda bodies were absent. The sporocyst residuum was composed of medium-sized granules aligned along perimeter of sporocyst or in a dispersed mass. This represents the first valid eimerian reported from the southern black racer.

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

2017 ◽  
Vol 26 (2) ◽  
pp. 231-234 ◽  
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.

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

2014 ◽  
Vol 59 (4) ◽  
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.

The Coccidia (Apicomplexa: Eimeriidae) of Testudines, with descriptions of three new species

1989 ◽  
Vol 67 (10) ◽  
pp. 2459-2467 ◽  
Author(s):  
Chris T. McAllister ◽  
Steve J. Upton
Keyword(s):  
New Species ◽  
Polar Granule ◽  
Stieda Body ◽  
Trachemys Scripta ◽  
Thin Membrane ◽  
Trachemys Scripta Elegans ◽  
Sporocyst Residuum ◽  
Three New Species ◽  
Oocyst Residuum

Three new species of Coccidia (Apicomplexa: Eimeriidae) are described from turtles in Texas, U.S.A. Oocysts of Eimeria texana sp.n. were found in 2/8 (25%) Texas cooters, Pseudemys texana, and are bent-cylindrical or elongate, 20.5 × 8.4 (17.6–23.2 × 7.2–9.0) μm (mean, range), with a smooth, thin, single-layered wall. A micropyle is absent but an oocyst residuum and polar granule are present. Sporocysts are ovoid, 8.1 × 4.7 (7.0–8.8 × 4.0–5.4) μm, with a Stieda body and sporocyst residuum. Oocysts of Eimeria cooteri sp.n. were recovered from 3/8 (37.5%) Pseudemys texana and are ellipsoid or bent-cylindrical, 25.9 × 10.9 (22.6–28.0 × 9.6–12.8) μm, with a single-layered wall. A polar granule and oocyst residuum are present but a micropyle is absent. Sporocysts are elongate, 14.9 × 5.3 (12.8–16.0 × 4.8–6.6) μm, with an elongate Stieda body capped by tiny knob-like thickenings and covered by a thin membrane; sporocyst residuum present. Oocysts of Eimeria stylosa sp.n. were harbored by 2/16 (12.5%) red-eared sliders, Trachemys scripta elegans, and are ovoid, 16.5 × 13.1 (14.4–17.6 × 12.0–14.4) μm, with a single-layered wall. Each end of the oocyst bears conical projections ca. 4.0 μm long. A micropyle, oocyst residuum, and polar granule are absent. Sporocysts are ellipsoid, 11.1 × 5.8 (9.6–14.4 × 5.4–7.2) μm, with a small Stieda body and sporocyst residuum. A table of the more than 30 species of Coccidia of turtles is presented.

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

Zootaxa ◽  
2010 ◽  
Vol 2650 (1) ◽  
pp. 57 ◽  
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.

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

2014 ◽  
Vol 59 (2) ◽  
Author(s):  
Chris McAllister ◽  
Donald Duszynski ◽  
Robert Fisher ◽  
Christopher Austin
Keyword(s):  
Papua New Guinea ◽  
Polar Granule ◽  
New Guinea ◽  
Refractile Body ◽  
Sporocyst Residuum ◽  
Compact Mass ◽  
Two New Species ◽  
Length Width ◽  
Oocyst Residuum

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.

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

1988 ◽  
Vol 66 (9) ◽  
pp. 2049-2052 ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document