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1.
SYNOPSIS. Eimeria diminuta sp. n. is described from the Ceylon jungle fowl Gallus lafayettei. Its sporulated oocysts are 16.5 (16–17.5) × 14.5 (13.5 × 15.5) μm. The species produces patent infections in domestic fowl.  相似文献   

2.
SYNOPSIS. Oocysts of Eimeria natricis sp. n. and Eimeria sipedon sp. n. were isolated from 2 Northern Water Snakes, Natrix sipedon sipedon (Linnaeus), in Iowa. Oocysts of E. natricis were elongate, slightly ovoid, averaging in size 32.3 × 17.5 μm; sporocysts averaged 15.7 × 8.2 μm. Oocysts of E. sipedon were broadly ovoid averaging in size 18.0 × 15.9 μm; sporocysts averaged 12.0 × 7.4 μm. In both species, sporocyst residua were present, but micropyles, polar granules and oocyst residua were lacking.  相似文献   

3.
Plasmodium clelandi sp. n. is described from Varanus cepedianus of Mannar District, Ceylon. The earliest asexual stages were seen as a chromatin dot. Trophozoites have a vacuole with chromatin material spread around its periphery. The trophozoites divide and mature to form the schizont. The maximum number of merozoites observed in a schizont was 8. Pigment was scanty and sometimes absent. The gametocytes had a characteristic elongate form and tend to encircle the host cell nucleus.  相似文献   

4.
Seven new species of Eimeria are described and figured from the freshwater fishes of Ontario and Quebec, Canada. They are Eimeria catostomi sp. n. and E. fernandoae sp. n. from Catostomus commersoni (Lacépède), E. etheostomae sp. n. from Etheostoma exile (Girard), E. hoffmani sp. n. from Umbra limi (Kirtland), E. micropteri sp. n. from Micropterus dolomieui Lacépède E. pungitii sp. n. from Pungitius pungitius (Linnaeus), and E. salvelini sp. n. from Salvelinus fontinalis (Mitchill). Furthermore, 2 new host records and 2 new distribution records for North America are reported for E. anguillae Léger & Hollande, 1922 and E. truttae Léger & Hesse, 1919 respectively. Finally, morphologically similar oocysts found in various cyprinids are regarded as belonging to E. iroquoina Molnar & Fernando, 1974.  相似文献   

5.
6.
SYNOPSIS. Oocysts of Eimeria filamentifera sp. n. were isolated from 2 of 2 snapping turtles, Chelydra serpentina (Linné), in Iowa. The ovoid to ellipsoid oocysts of this species averaged 23.2 × 18.6 μm and had a length/width ratio ranging from 1.1 to 1.6. The ellipsoid sporocysts averaged 14.0 × 7.7 μm and had papillose, filament-bearing Stieda bodies. Oocyst and sporocyst residua were present, but micropyle and polar granule were not. This appears to be the 2nd species of Eimeria reported from snapping turtles, with E. chelydrae being the first.  相似文献   

7.
SYNOPSIS. A survey of 22 Western Painted Turtles (WPT), Chrysemys picta belli Gray; 2 Map Turtles (MT), Graptemys geographica Le Sueur; 8 False Map Turtles (FMT), Graptemys pseudogeographica Gray; 26 Illinois Mud Turtles (IMT), Kinosternon flavescens spooneri Smith; and 5 Spiny Softshell Turtles (SST), Trionyx spiniferus Le Sueur, revealed the presence of 10 species of coccidia. The species found, the shape and average length-width dimensions (in micrometers) of their oocysts, and the respective hosts from which they were isolated were as follows: Eimeria chrysemydis Deeds & Jahn, slightly pear-shaped (27.6 × 17.0), from 5 WPTs; Eimeria delagei marginata Deeds & Jahn, markedly pearshaped (22.1 × 17.6), from 2 WPTs, 1 MT, and 3 FMTs; Eimeria graptemydos sp. n., broadly ellipsoid to subspherical (12.6 × 11.4), from 10 WPTs, 2 MTs, and 5 FMTs; Eimeria lutotestudinis sp. n., broadly ellipsoid to subspherical (11.9 × 10.8), from 4 IMTs; Eimeria mascoutini sp. n., broadly ellipsoid to subspherical with outer surface of oocyst wall mammillated (14.0 × 11.9), from 2 SSTs; Eimeria mitraria (Laveran & Mesnil), asymmetrically ellipsoid, bearing 1 or 2 conical projections at the polar end and 2 or 3 at the antipolar end (10.0 × 7.6), from 7 WPTs, 1 MT, 3 FMTs, and 4 IMTs; Eimeria pseudogeographica sp. n., narrowly ellipsoid to slightly ovoid (19.5 × 13.5), from 5 WPTs and 3 FMTs; Eimeria tetradacrutata sp. n., spherical to subspherical with outer surface of oocyst wall mammillated (19.5 × 19.2), from 1 WPT; an Eimeria sp. narrowly ellipsoid, bearing 2 conical projections at the polar end and 2 at the antipolar end (23.8 × 13.2), from 1 MT; and Mantonella hammondi sp. n., conical to narrowly ellipsoid, bearing 1 conical projection at the polar end and 2 or 3 at the antipolar end (14.3 × 7.1), from 1 IMT. The overall infection rate for the 63 turtles examined was 54.0%.  相似文献   

8.
SYNOPSIS. In a survey of parasites of wild mammals of Malaysia 3 new species of Eimeria were found. Eimeria tupaiae sp. n. is described from the common tree shrew, Tupaia glis. Its ellipsoidal to spherical, 3-layered oocysts average 20 × 19 μm. A micropyle is absent; an oocyst residuum and polar granule are present. Ellipsoidal sporocysts average 11 × 7 μm. A sporocyst residuum and Stieda body are present. Eimeria ptilocerci sp. n. is described from the pen-tail tree shrew, Ptilocercus lowii. The ellipsoidal to spherical, 2-layered oocysts average 23 × 20 μm. A micropyle and oocyst residuum are absent; polar granules are present. The ellipsoidal sporocysts average 13 × 7 μm. A sporocyst residuum and Stieda body are present. Eimeria muuli sp. n. is described from the pencil-tailed tree mouse, Chiropodomys gliroides. The ellipsoidal single-layered oocysts average 25 × 19 μm. A micropyle and oocyst residuum are absent; a polar granule is present. The ellipsoidal sporocysts average 13 × 8 μm. A sporocyst residuum and Stieda body are present. In addition, new host records are reported as follows: E. miyairii Ohira from Whitehead's rat Rattus whiteheadi and the Malaysian wood rat, R. tiomanicus; E. separata Becker & Hall from Mueller's rat, R. muelleri, the chestnut rat, R. fulvescens, and the Malaysian wood rat, R. tiomanicus; E. nieschulzi Dieben from the red spiny rat, R. surifer and the chestnut rat, R. fulvescens; and E. callosciuri Colley from the grey-bellied squirrel, Callosciurus caniceps and the black-banded squirrel, C. nigrovittatus.  相似文献   

9.
A survey of 117 Iowa snakes, representing 18 species within 12 genera, revealed the presence of 6 species of Eimeria, 5 of which are described as new and 1 of which (E. zamenis) is redescribed. Those species found, the average length-width dimensions of their oocysts ( in micrometers ), and the respective hosts from which they were isolated were as follows: E. attenuata sp. n., 22.2 × 12.6, from 1 of 25 red-sided garter snakes [Thamnophis sirtalis parietalis (Say)] and 1 of 14 northern water snakes [Natrix sipedon sipedon (Linnaeus)]; E. iowaensis sp. n., 17.8 × 14.5, from 1 of 25 redsided garter snakes; E. hydrophis sp. n., 15.4 × 10.9, from 5 of 14 northern water snakes and 1 of 1 diamond-backed water snake [N. rhombifera rhombifera (Hallowell)]; E. helmisophis sp. n., 13.8 × 10.6, from 1 of 5 western worm snakes [Carphophis amoenus vermis (Kennicott)]; E. collanuli sp. n., 33.1 × 18.3, from 1 of 14 prairie ring-neck snakes (Diadophis punctatus arnyi Kennicott), and E. zamenis, 31.0 × 17.0, from 1 of 6 eastern yellow-bellied racers (Coluber constrictor flaviventris Say) and 1 of 1 eastern milk snake [Lampropeltis triangulum triangulum (Lacépède)]. The overall infection rate for the 117 snakes examined was 9.2%; these data are tabulated. In addition, the possible synonymy of E. lampropeltis with E. zamenis is considered, and the probable status of E. attenuata, E. hydrophis, E. zamenis, and E. annea, as parasites of multiple host species, is reviewed with regard to the phylogenetic relationships of the respective hosts from which they have been reported.  相似文献   

10.
SYNOPSIS Oocysts of Eimeria dericksoni Roudabush, Eimeria mascoutini Wacha & Christiansen, and Eimeria vesicostieda sp. n. were isolated from the Spiny Soft-shell Turtle, Trionyx spiniferus LeSueur, in Iowa. The sporulated oocysts of E. dericksoni are redescribed to include, for the first time, the dimensions of the sporocysts (6.0–8.5 × 3.0–5.0 μm) and the structural appearance of the Stieda body (thinly convex); the oocysts of E. vesicostieda are newly described as being thickwalled, narrowly ovoid to narrowly ellipsoid, measuring 22.0–25.5 × 16.5–20.5 μm. and having a polar granule, a sporocyst residuum, and a vesicle-like Stieda body; the oocysts of E. mascoutini are documented photographically.  相似文献   

11.
Synopsis. Oocysts of Eimeria malabaricas sp. n. and Eimeria bandipurensis from the South Indian tree squirrel Funambulus tristriatus collected in Kerala, India, are described. Sporulated oocysts of E. malabaricas were ellipsoid to subspherical measuring 39.8 (35–45) × 32.1 (29–37) m?m, with a thick (2.5–3.0 m?m), 2-layered wall. The outer layer was yellow-brown, striated, and rough. There was no micropyle. but a polar granule was present in 34% of oocysts. The sporocysts were ovoid, 16.0 (14.0–18.0) × 11.2 (11.0–12.0) m?m, with a Stieda body and a granular residuum. Excysted sporozoites were 21.8 (19.0–23.0) × 3.4 (3.0–4.0) m?m, with a large refractile body. The sporulated oocysts of E. bandipurensis are redescribed.  相似文献   

12.
SYNOPSIS Oocysts of Eimeria crotalviridis sp. n. are described from prairie rattlesnakes, Crotalus viridis viridis in New Mexico on the basis of light and electron microscopy and in vitro excystation of sporozoites. Sporulated oocysts of E. crotalviridis are elliptical, 26.4 × 22.3 (23–29 × 20–24) μm with ovoid sporocysts 11.7 × 8.1 (11–13 × 7–9) μm. A micropyle, micropyle cap and polar bodies are absent, but oocyst and sporocyst residua and Stieda and substieda bodies are present. Excysted sporozoites are 12.4 × 2.8 (11–13 × 2–3) μm and have 1 large posterior refractile body and a nucleus with a prominent nucleolus. Ultrastructurally, the oocyst wall has 2 layers, a thick, electron-dense, highly sculptured outer layer composed of a fine granular matrix and a thin, granular, osmiophilic inner layer, separated from the outer layer by at least one unit membrane. These layers are 441 (353–510) and 21.6 (19–29) nm thick, respectively. Within 15 min after exposure to a trypsin-sodium taurocholate fluid, sporozoites of E. crotalviridis excysted from 5-month-old sporocysts.  相似文献   

13.
SYNOPSIS. Examination of littoral fish Blennius pholis and Cottus bubalis caught at Aberystwyth and Porth Cwyfan, Wales. U.K., revealed 2 species of coccidia.
Eimeria dingleyi sp. n. Oocysts spherical (16.1–19.2) to subspherical (13.9–14.2 × 18.8–20.0) μm, with thin walls; sporulation outside the host to produce ellipsoid sporocysts; endogenous phases in epithelial cells throughout intestine; 26 of 58 B. pholis infected.
Eimeria variabilis (Thélohan) Reichenow. Oocysts spherical (11.9–14.6) to subspherical (9.2–10.9 × 13.9–14.3) μm; sporulation in lining of pyloric ceca and rectum; previously unrecorded schizonts and gametocytes present; 21 of 25 C. bubalis infected.
Electron microscopy revealed that the oocyst wall of E. variabilis consists of a thin membrane whereas the sporocyst wall is thick and 3-layered. Typical oocyst wall-forming bodies were absent from the macrogamete. Cytochemical tests on the endogenous stages of E. dingleyi and E. variabilis indicated that in general they resembled other coccidia in their chemical constitution.  相似文献   

14.
广东省原鸡种群数量、分布及栖息地现状的初步调查   总被引:3,自引:1,他引:2  
广东原鸡栖息地分布在徐闻,雷州,信宜,高州,阳春5个县(市),为孤立的三块,呈岛屿状分布,总面积2501.62km^2,总体数量680-750只,原鸡数量最多,面积最大的一块栖息地是由信宜,高州,阳春3块小栖息地组合而成,成为广东原鸡的主要栖息和分布地。  相似文献   

15.
16.
Entodiniomorph ciliates, belonging to the family Cycloposthiidae, are described from the stomach contents of Hippopotamus amphibius. Monoposthium acanthum gen. n., sp. n., with typical cycloposthiid structure, differs from other genera in having only 1 caudalium. Parentodinium gen. n., represented by P. africanum sp. n. and P. ostrea sp. n., although superficially resembling Entodinium, is considered to be a relatively unspecialized cycloposthiid.  相似文献   

17.
SYNOPSIS. Diplodinium (Ostracodinium) minorum sp. n., observed in rumen contents from several domestic sheep, resembles Diplodinium (O.) ypsilon and Diplodinium (O.) magnum. It differs from the latter 2 species primarily in the size and proportions of the body, size of the rectum and anus, and in the presence of a short right caudal lobe in many individuals. In the samples studied, D. (O.) minorum constituted from 0.06 to 0.67% of the total rumen ciliate population.  相似文献   

18.
SYNOPSIS. A new species of Microsporida, Burenella dimorpha sp. n., representing a new family, Burenellidae fam. n. and genus, is described on the basis of light- and electron-microscope observations. The family is characterized by 2 sequences of sporogony, each sequence having morphologically different sporonts and spores. The parasite infects the tropical fire ant, Solenopsis geminata (Fabricius), producing distinct pathologic manifestations (clearing of the cuticle and eye malformation) and death in the pupal stage of development. Transmission of the infection per os to healthy S. geminata, to the Southern fire ant, Solenopsis xyloni McCook, and to the red and black imported fire ants, Solenopsis invicta Buren and Solenopsis richteri Forel, is reported.  相似文献   

19.
SYNOPSIS. Eimeria galateai sp. n. from the paradise kingfisher ( Tanysiptera galatea Gray) and Eimeria duncani sp. n. from the sacred kingfisher ( Halcyon sancta Vigors & Horsfield) have been described from Papua New Guinea. Four of 11 paradise kingfishers were infected with E. galateai oocysts, measuring 13 (11–16) × 9 (8–11) μm. The oocysts were ovoid with nipple-like protrusion at one pole. Micropyle and polar granule were absent, while oocyst residuum (5 × 4 μm) was present. Sporocysts, measuring 5 (4–6) × 2 μm, were elongate-ovoid, and had a distinct convex Stieda body; the sporocyst residuum was absent. Two of 9 sacred kingfishers were infected with ovoid-truncated, 22 (19–25) × 16 (12–18) μm oocysts of E. duncani . Polar granule (5 × 2) was present in the oocysts, but there was no micropyle or oocyst residuum. Sporocysts were ovoid, measuring 9 (8–10) × 5 (4–6) μm, with a prominent Stieda body, and granular sporocyst residuum. Eimeria galateai and E. duncani are the first species of this genus to be described from birds of the order Coraciiformes.  相似文献   

20.
SYNOPSIS. Eimeria tenggilingi is described from the pangolin or scaly anteater, Manis javanica, in Malaysia. The spheroid to subspheroid oocysts average 18.9 × 17.8 μm. The oocyst wall is composed of 3 layers, each ~ 0.6 μm thick. The 2 outer layers are striated and yellowish green. The inner layer is dark brown. One or 2 polar granules are present, but an oocyst residuum is absent. Ellipsoid sporocysts average 12.4 × 6.2 μm. A sporocyst residuum is present. This is the first Eimeria species reported from a host in the order Pholidota.  相似文献   

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