Eimeria caretta sp.nov. (Apicomplexa: Eimeriidae) from the loggerhead sea turtle, Caretta caretta (Testudines)

1990 ◽  
Vol 68 (6) ◽  
pp. 1268-1269 ◽  
Author(s):  
Steve J. Upton ◽  
Daniel K. Odell ◽  
Michael T. Walsh
Keyword(s):  
Atlantic Coast ◽  
Polar Granule ◽  
Loggerhead Turtle ◽  
Caretta Caretta ◽  
Sea Turtle ◽  
Stieda Body ◽  
Loggerhead Sea Turtle ◽  
Thin Filaments ◽  
Sporocyst Residuum ◽  
Oocyst Residuum

Eimeria caretta sp.nov. (Apicomplexa: Eimeriidae) is described from the feces of a stranded loggerhead turtle, Caretta caretta (Testudines), rescued from the Atlantic coast near Jensen Beach, Hutchinson Island, Martin County, Florida. Oocysts are subspherical to ellipsoidal, 24.5 × 22.0 (21.4–28.0 × 18.4–24.0) μm, with a smooth, bilayered wall. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 14.3 × 8.9(12.8–16.0 × 8.2–10.0) μm, and possess a Stieda body but no substieda body. The Stieda body is unusual in that 12–20 long, thin filaments project from its surface. Sporozoites are elongate, each with two refractile bodies. The sporocyst residuum consists only of scattered granules. This coccidian is most similar to Eimeria filamentifera Wacha and Christiansen 1979 from the common snapping turtle, Chelydra serpentina, but differs because it possesses more numerous and elongate filaments associated with the Stieda body and lacks an oocyst residuum.

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.

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.

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.

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

2011 ◽  
Vol 56 (3) ◽  
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.

The Coccidia (Apicomplexa: Eimeriidae) of Anura, with descriptions of four new species

1988 ◽  
Vol 66 (8) ◽  
pp. 1822-1830 ◽  
Author(s):  
Steve J. Upton ◽  
Chris T. McAllister
Keyword(s):  
New Species ◽  
Polar Granule ◽  
Stieda Body ◽  
Thin Wall ◽  
Sporocyst Residuum ◽  
Flexible Wall ◽  
Oocyst Residuum

Four new species of Coccidia (Apicomplexa: Eimeriidae) are described from anurans from Texas and Arkansas, U.S.A. Oocysts of Eimeria flexuosa sp.n. were found in Pseudacris streckeri streckeri and are irregular in shape, long axis 17.0 (15.2–19.2) μm (mean, range), with a thin, flexible wall. Micropyle and oocyst residuum absent; polar granule present. Sporocysts ovoid, 10.3 × 7.3 (9.6–12.0 × 6.4–8.0) μm, with Stieda body and sporocyst residuum. Oocysts of Eimeria streckeri sp.n. were also found in P. s. streckeri and are spherical or subspherical, 18.8 × 18.7(16.8–21.5 × 16.8–20.8) μm, with a thin wall. Micropyle and polar granule absent; oocyst residuum present. Sporocysts ovoid, 11.1 × 7.7 (9.6–12.8 × 7.2–8.8) μm, with Stieda body and sporocyst residuum. Oocysts of Isospora delicatus sp.n. were found in P. s. streckeri and Pseudacris streckeri illinoensis and are spherical or subspherical, 15.8 × 15.7(12.8–16.8 × 12.8–16.8) μm, and have a thin wall. Micropyle, oocyst residuum, and polar granule absent. Sporocysts ovoid, 13.5 × 8.0(11.2–14.8 × 7.2–9.6) μm, with Stieda body and diffuse sporocyst residuum. Oocysts of Isospora fragosum sp.n. were recovered from Gastrophryne olivacea and are spherical, 18.5 (16.8–20.8) μm, and have a thin wall that ruptures easily. Micropyle, polar granule, and oocyst residuum absent. Sporocysts ovoid, 12.7 × 10.9 (11.2–14.4 × 9.6–12.0) μm, lacking Stieda and substieda bodies; large sporocyst residuum present.

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.

The Eimeria (Apicomplexa: Eimeriidae) of Serpentes, with descriptions of three new species from colubrid snakes

1990 ◽  
Vol 68 (5) ◽  
pp. 855-864 ◽  
Author(s):  
Steve J. Upton ◽  
Chris T. McAllister
Keyword(s):  
New Species ◽  
Polar Granule ◽  
Outer Wall ◽  
Stieda Body ◽  
Thin Wall ◽  
Sporocyst Residuum ◽  
Three New Species ◽  
Oocyst Residuum

Three new species of Coccidia (Apicomplexa: Eimeriidae) are described from snakes collected in Texas, U.S.A. Oocysts of Eimeria papillosum sp.nov. were found in Salvadora grahamiae lineata and are cylindrical, 32.0 × 18.0 (28.8–35.2 × 16.0–20.4) μm, with an outer wall studded by numerous papules. A micropyle and oocyst residuum are absent but a polar granule is present. Sporocysts are ellipsoid, possess a sporocyst residuum, and lack a Stieda body. Oocysts of Eimeria serpenticola sp.nov. were found in Thamnophis proximus rubrilineatus and are ellipsoid, 20.3 × 17.5 (18.4–22.4 × 15.8–19.8) μm, with a smooth, thin wall. A micropyle and oocyst residuum are absent but a polar granule is present. Sporocysts are elongate and possess a sporocyst residuum and Stieda body. Oocysts of Eimeria striatula sp.nov. were recovered from Virginia striatula and are spherical, 12.5 (11.2–15.2) μm, with a thin wall. A micropyle and oocyst residuum are absent but a polar granule is present. Sporocysts are elongate and possess a Stieda body and few granules within the sporocyst. A table is provided listing the more than 50 named species of eimerians reported to infect members of the suborder Serpentes.

scholarly journals Description of cloacoscopy in the loggerhead sea turtle (Caretta caretta)

2016 ◽  
Vol 85 (4) ◽  
pp. 367-370 ◽  
Author(s):  
Filippo Spadola ◽  
Manuel Morici ◽  
Matteo Oliveri ◽  
Zdeněk Knotek
Keyword(s):  
Distal Part ◽  
Loggerhead Turtle ◽  
Caretta Caretta ◽  
Sea Turtle ◽  
Urogenital Sinus ◽  
Terminal Part ◽  
Loggerhead Sea Turtle ◽  
Fluid Infusion ◽  
Urethral Orifice ◽  
Flexible Colonoscope

The aim of the study was to describe cloacoscopy in the loggerhead turtle (Caretta caretta) and to evaluate its efficacy in clinical practice. Cloacoscopy was performed on 31 turtles, 23 females and 8 males. Thirty minutes before anaesthesia, meloxicam (0.4 mg/kg) was administered intramuscularly. Turtles were anaesthetised with a combination of 0.04 mg/kg dexmedetomidine and 4 mg/kg ketamine administered intramuscularly. Cloacoscopy was performed with a diagnostic telescope (10 mm diameter, 30 cm long, 0°, with an operating sheath) or with a flexible colonoscope (13 mm diameter, 160 cm long). Turtles were placed in dorsal recumbence and endoscope was inserted through the vent. In the distal part of the proctodeum, phallus or clitoris were easily visualized. A finger and thumb were placed around the vent to act as a valve in order to control the fluid infusion. Flushing the cloaca with warm saline and 0.6% lidocaine allowed clear view. The urethral orifice was located centrally within the urogenital sinus. Further proximally, the slit of the urodeum with the distal sphincter of the colon could be visualized. Passing gently through the urethral orifice allowed direct visualization of the urinary bladder. After withdrawing and re-directing the endoscope into the coprodeum, the terminal part of the intestine was reached. From 31 loggerhead turtles examined, fishing lines were found in 23 animals. Cloacoscopy proved to be a feasible diagnostic method and it is suggested as a routine diagnostic tool for clinical assessment of loggerhead turtle patients.

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