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Articles 2041 - 2070 of 2461

Full-Text Articles in Parasitology

The Role Of Cuticular Strata Nomenclature In The Systematics Of Nemata, Armand R. Maggenti Jan 1979

The Role Of Cuticular Strata Nomenclature In The Systematics Of Nemata, Armand R. Maggenti

Harold W. Manter Laboratory of Parasitology: Faculty Publications

A system of cuticular nomenclature based on the strata observed in Enoplia is proposed. Nematode cuticle is divided into four fundamental strata: epicuticle, exocuticle, mesocuticle, and endocuticle. Application of this system allows the correlation of complementary strata throughout Nemata. The major taxonomic categories within Nemata are differentiated on the basis of their cuticular strata as compared with the Enoplia model cuticle.

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Coccidian Parasites Of Wild Turkeys, Meleagris Gallopavo Silvestris, In Illinois, D. Michael Watkins Jan 1979

Coccidian Parasites Of Wild Turkeys, Meleagris Gallopavo Silvestris, In Illinois, D. Michael Watkins

Masters Theses

Fecal samples from 124 wild turkeys (Meleagris gallopavo silvestris), collected in three southern Illinois counties, were examined for coccidia. Three and two tenths percent (4) of the birds sampled were infected with Eimeria of apparently four different species. These species were tentatively designated as: E. meleagridis, E. adendeides, E. meleagrimitis and E. subrotunda.

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Review Of Parasitic Protozoa. Volume Iii: Gregarines, Haemogregarines, Coccidia, Plasmodia, And Haemoproteids. Edited By Julius P. Kreier (Academic Press, 1977), Donald W. Duszynski Dec 1978

Review Of Parasitic Protozoa. Volume Iii: Gregarines, Haemogregarines, Coccidia, Plasmodia, And Haemoproteids. Edited By Julius P. Kreier (Academic Press, 1977), Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Review of Parasitic Protozoa. Volume III: Gregarines, Haemogregarines, Coccidia, Plasmodia, and Haemoproteids. Edited by Julius P. Kreier. New York : Academic Press, 1977.

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Two New Species Of Acanthobothrium Van Beneden 1849 (Cestoidea: Tetraphyllidea) From Freshwater Stingrays In South America, Monte A. Mayes, Daniel R. Brooks, Thomas B. Thorson Oct 1978

Two New Species Of Acanthobothrium Van Beneden 1849 (Cestoidea: Tetraphyllidea) From Freshwater Stingrays In South America, Monte A. Mayes, Daniel R. Brooks, Thomas B. Thorson

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Two new species of Acanthobothrium are reported from freshwater stingrays in northern South America. Acanthobothrium quinonesi sp. n. is described from Potamotrygon magdalenae Dumeril collected from the Magdalena River in northern Colombia and A. amazonensis sp. n. from P. circularis Garman collected in the Itacuai River of northwestern Brazil. Acanthobothrium quinonesi differs from A. amazonensis by having a smaller and anteriorly-curved cirrus sac, 43-60 rather than 50-72 testes, and bothridial hooks 100-142 μm long rather than 145-184 μm long. Characters used in the taxonomy of Acanthobothrium species are listed to show that the new species resemble each other and A. …

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Experimental Transmission Of Sarcocystis From Icterid Birds To Sparrows And Canaries By Sporocysts From The Opossum, Edith D. Box, Donald W. Duszynski Aug 1978

Experimental Transmission Of Sarcocystis From Icterid Birds To Sparrows And Canaries By Sporocysts From The Opossum, Edith D. Box, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Cowbirds (Molothrus ater) and grackles (Cassidix mexicanus) infected with muscle cysts of Sarcocystis were fed to opposums (Didelphis virginiana) and fecal sporocysts from the latter were given to sparrows (Passer domesticus, Family Ploceidae), canaries (Serinus canarius, Family Fringillidae) and ducks (Anas platyrhynchos, Family Anatidae). Asexual parasites were found in the endothelium of sparrows and canaries but not in ducks. When birds were kept 10 weeks or more after infection, muscle cysts were found grossly and microscopically in the majority of sparrows, and in 1 canary, but not in …

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Acanthobothrium Electricolum Sp. N. And A. Lintoni Goldstein, Henson, And Schlicht 1969 (Cestoda: Tetraphyllidea) From Narcine Brasiliensis (Olfers) (Chondrichthyes: Torpedinidae) In Colombia, Daniel R. Brooks, Monte A. Mayes Aug 1978

Acanthobothrium Electricolum Sp. N. And A. Lintoni Goldstein, Henson, And Schlicht 1969 (Cestoda: Tetraphyllidea) From Narcine Brasiliensis (Olfers) (Chondrichthyes: Torpedinidae) In Colombia, Daniel R. Brooks, Monte A. Mayes

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Acanthobothrium lintoni and a new species of Acanthobothrium are reported from the lesser electric ray Narcine brasiliensis in Colombia. The new species resembles all other members of the genus parasitizing torpedinids by having a relatively small scolex, long and spinose cephalic peduncle, fewer than 75 testes per proglottid, an indistinct genital atrium, and V-shaped ovaries with ovarian lobes of equal length which do not reach the posterior margin of the cirrus sac. The new species differs from all known species by having bothridial hooks only 46 to 64 μm in total length. A key to the species of Acanthobothrium parasitizing …

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Effects Of Trypanosoma Musculi Kendall, 1906 Immune Serum On The Reproduction Of Trichinella Spiralis (Owen, 1835) Railliet, 1896 In Mice, Samuel L. Chafin Jun 1978

Effects Of Trypanosoma Musculi Kendall, 1906 Immune Serum On The Reproduction Of Trichinella Spiralis (Owen, 1835) Railliet, 1896 In Mice, Samuel L. Chafin

Loma Linda University Electronic Theses, Dissertations & Projects

The possible effects of ablastin, a reproduction-inhibiting antibody which is produced during the infection of the blood parasite, Trypanosoma musculi in the mouse, were investigated by fractionating the parasite into a supernatant fraction (designated as Group A test mice) and a pellet fraction (Group B test mice). These groups A and B mice were injected with the respective fractions, plus Freund’s Complete Adjuvant (FCA). Control mice were injected with FCA only. Sera from these three groups of mice were removed after the Group A and Group B mice were shown to be negative to T. musculi challenge, and Group A …

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Adult Cestodes From The Coelomic Cavity Of The Teid Lizard, Cnemidophorus Sexlineatus, Wesley L. Shoop, John J. Janovy Jr. Jun 1978

Adult Cestodes From The Coelomic Cavity Of The Teid Lizard, Cnemidophorus Sexlineatus, Wesley L. Shoop, John J. Janovy Jr.

John J. Janovy, Jr. Publications

In a survey of 64 Cnemidophorus sexlineatus, adult cestodes identified as Oochoristica bivitellobata with gravid proglottids were found in the coelomic cavity of two hand caught specimens at Cedar Point Biological Station, Ogallala, Nebraska, during June and July 1977. Two O. bivitellobata were found free in the coelom of a male lizard, whereas four were found in the coelom and one in the intestine of a female. No ruptures were found in the walls of the intestines of all lizards examined. In addition, 61 O. bivitellobata were found in the intestine of nine (14%) of the C. sexlineatus with …

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Spirocamallanus Cricotus Sp. N. And S. Halitrophus Sp. N. (Nematoda: Camallanidea) From Fishes In The Northern Gulf Of Mexico, Alan C. Fusco, Robin M. Overstreet Apr 1978

Spirocamallanus Cricotus Sp. N. And S. Halitrophus Sp. N. (Nematoda: Camallanidea) From Fishes In The Northern Gulf Of Mexico, Alan C. Fusco, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Spirocamallanus cricotus sp. n. (= S. pereirai, in part) and S. halitrophus sp. n. are described from marine fishes of the northern Gull of Mexico. Spirocamallanus cricotus has a ledge anterior to the basal ring in the buccal capsule, similar spicules with a ratio of 1:1.4 to 2.1, 3 pre- and 5 postcloacal papillae, and 8 rectal glands in the female; S. halitrophus lacks the ledge and possesses dissimilar spicules with a ratio of 1:1.3 to 1.8, 3 pre- and 6 postcloacal papillae, and 4 rectal glands in the female.

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The Opossum (Didelphis Virginiana) As A Host For Sarcocystis Debonei From Cowbirds (Molothrus Ater) And Grackles (Cassidix Mexicanus, Quiscalus Quiscula), Donald Duszynski, Edith D. Box Apr 1978

The Opossum (Didelphis Virginiana) As A Host For Sarcocystis Debonei From Cowbirds (Molothrus Ater) And Grackles (Cassidix Mexicanus, Quiscalus Quiscula), Donald Duszynski, Edith D. Box

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Sarcocystis-infected muscles from ducks, cowbirds, and grackles were fed to cats, opossums, rats, and a dog. Only the opossum (Didelphis virginiana) was a suitable definitive host. All opossums that were fed Sarcocystis-infected cowbirds (Molothrus ater) and grackles (Cassidix mexicanus and Quiscalus quiscula) passed sporocysts in their feces. Opossums that ate the cowbirds had prepatent periods of 5 and 10 days and remained patent for at least 105 days. Opossums that ate the grackles became patent on day 10 after the infective meal and remained patent for over 90 (Quiscalus) and …

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Implication Of An Environmentally Induced Hamartoma In Commercial Shrimps, Robin M. Overstreet, Thomas Van Devender Mar 1978

Implication Of An Environmentally Induced Hamartoma In Commercial Shrimps, Robin M. Overstreet, Thomas Van Devender

Harold W. Manter Laboratory of Parasitology: Faculty Publications

An overgrowth of muscle protruded through the ventral portion of the sixth abdominal segment of Penaeus aztecus and P. setiferus. This hamartoma was observed in 33 postlarval shrimp and is the first reported from a crustacean. Even though afflicted individuals represented a small proportion of the shrimp examined, nearly all such individuals were collected from the presumed most heavily polluted site. We suggest an unidentified pollutant as the cause of the abnormality.

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Permanent Light Microscopy Slides Of Eimeria Nieschulzi Oocysts, Alan A. Marchiondo, Donald W. Duszynski Feb 1978

Permanent Light Microscopy Slides Of Eimeria Nieschulzi Oocysts, Alan A. Marchiondo, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The methods described here allow for the preparation of light microscopy slides of coccidian oocysts and thus, provide a durable sample and record for research and teaching. These methods used only one species, Eimeria nieschulzi; however, it is likely that use of other coccidian oocysts would produce similar results.

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New Policy Hits Hard At Sheep Lice, F C. Wilkinson Jan 1978

New Policy Hits Hard At Sheep Lice, F C. Wilkinson

Journal of the Department of Agriculture, Western Australia, Series 4

In March 1977 the regulation requiring compulsory routine dipping of all sheep within 30 days of shearing changed, and only infested flocks were required to be dipped. This change has allowed concentrated eradication efforts.

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Prehistoric Cremations From Nogales, Arizona *, Karl J. Reinhard, Jeff H. Shipman Jan 1978

Prehistoric Cremations From Nogales, Arizona *, Karl J. Reinhard, Jeff H. Shipman

Karl Reinhard Publications

In October, 1969, the Highway Salvage Section of the Arizona State Museum conducted emergency salvage excavations in conjunction with the construction of the Tucson-Nogales Highway. Ten cremations were recovered from a backhoe trench which had been placed within the city limits of Nogales, Arizona. Analysis of the cremations indicated cultural contact between the Trincheras culture of Sonora, Mexico, and the Hohokam culture of the Santa Cruz River Valley in southern Arizona.

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Food Of The Atlantic Croaker, Micropogonias Undulatus, From Mississippi Sound And The Gulf Of Mexico, Robin M. Overstreet, Richard W. Heard Jan 1978

Food Of The Atlantic Croaker, Micropogonias Undulatus, From Mississippi Sound And The Gulf Of Mexico, Robin M. Overstreet, Richard W. Heard

Harold W. Manter Laboratory of Parasitology: Faculty Publications

The diet of the Atlantic croaker from Mississippi Sound has been examined for the first time. Over 83 taxa were encountered, or more than were reported from croaker in any other region. We also found 60 taxa, 36 of which overlapped with the above, in croaker from various offshore stations in the Gulf of Mexico. In Mississippi Sound the frequency of occurrcnce of items revealed primarily crustaceans followed by polychaetes, molluscs, fishes, and less common items, and, in the open Gulf, molluscs appeared slightly more often than in inshore croaker and than polychaetes in offshore fish. The diets were assessed …

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Food Of The Red Drum, Sciaenops Ocellata, From Mississippi Sound, Robin M. Overstreet, Richard W. Heard Jan 1978

Food Of The Red Drum, Sciaenops Ocellata, From Mississippi Sound, Robin M. Overstreet, Richard W. Heard

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Examined digestive tracts of the red drum in Mississippi Sound contained mostly decapod crustaceans. Crustaceans accounted for 34 of 59 encountered taxa, more than reported from any other region. Nevertheless, the general diet for 104 fish with food contents out of the 107 examined is similar to that reported for red drum in several other studies from other areas. In addition to crustaceans, fishes followed by polychaetes occurred as the most important items (in 99, 43, and 15% of the drum with food, respectively). Blue crabs occurred in even more drum than the frequently encountered penaeid shrimps. Other commercial species …

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Suppressed Rejection Of Trichinella Spiralis In Immunized Rats Concurrently Infected With Eimeria Nieschulzi, Donald W. Duszynski, Deborah Russell, Shirley A. Roy, Gilbert A. Castro Jan 1978

Suppressed Rejection Of Trichinella Spiralis In Immunized Rats Concurrently Infected With Eimeria Nieschulzi, Donald W. Duszynski, Deborah Russell, Shirley A. Roy, Gilbert A. Castro

Harold W. Manter Laboratory of Parasitology: Faculty Publications

This study deals with the effect of Eimeria nieschulzi infection on the host immune response to Trichinella spiralis. Six male Sprague-Dawley rats were inoculated with 104 and six with 106; sporulated E. nieschulzi oocysts. On days 2, 8, and 16 post-inoculation (PI), two rats from each infected group, and their paired uninfected controls, were killed and mucosal scrapings from their small intestines were assayed for peroxidase activity. Peroxidase levels were higher than corresponding control values on days 2 and 16 PI and significantly lower than the controls on day 8 PI. These data led us to …

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Capillaria Sp. From Cryptotis Parva, Joseph N'Dong Jan 1978

Capillaria Sp. From Cryptotis Parva, Joseph N'Dong

Masters Theses

Twenty-nine Cryptotis parva were trapped at Lincoln Log Cabin State Park in Coles County Illinois between 22 December 1976 and 31 January 1978. Trapped specimens were necropsied and examined for the presence of helminth parasites. Nematode infections were found to be present in eight (27.2%) of the shrews collected with five (17.2%) of the males and three (10.3%) of the females infected. Three adult female nematodes were recovered from the small intestines of the host specimens, described and identified as the genus Capillaria. No male Capillaria were obtained and therefore species identification was impossible. However, the general appearance of …

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Epizoic Protozoa Of Planktonic Copepoda And Cladocera From A Small Eutrophic Lake, And Their Possible Use As Indicators Of Organic Water Pollution, Michael Stevens Henebry Jan 1978

Epizoic Protozoa Of Planktonic Copepoda And Cladocera From A Small Eutrophic Lake, And Their Possible Use As Indicators Of Organic Water Pollution, Michael Stevens Henebry

Masters Theses

The epizoic protozoa of planktonic copepoda and cladocera from a eutrophic lake (Ashmore Lake, Coles County, Illinois) were studied over a 13-week period in the summer and fall of 1975. All organisms were collected with a 125 micron mesh plankton net. Epizoans (all peritrichs and suctorians) were hosted by three of four species of copepods and four of the ten species of cladocerans. The percentage of total organisms hosting epizoans varied significantly (0.001 alpha level) by month, but averaged 11.6 percent. This high occurrence of epizoans was thought to be related to the highly-eutrophic conditions existing in the lake. If …

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Poecilancistrium Caryophyllum And Other Trypanorhynch Cestode Plerocercoids From The Musculature Of Cynoscion Nebulosus And Other Sciaenid Fishes In The Gulf Of Mexico, Robin M. Overstreet Oct 1977

Poecilancistrium Caryophyllum And Other Trypanorhynch Cestode Plerocercoids From The Musculature Of Cynoscion Nebulosus And Other Sciaenid Fishes In The Gulf Of Mexico, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Examination of over 3,000 fish, all sciaenids, has shown that plerocercoids of Poecilancistrium caryophyllum infect Cynoscion nebulosus, Bairdiella chrysura, Sciaenops ocellata, C. arenarius, Micropogonias undulatus, and Pogonias cromis in Mississippi Sound. In addition to P. caryophyllum, a pseudophyllidean-like trypanorhynch also infected C. nebulosus and M. undulatus. Pseudogrillotia pleistacantha selectively infected large P. cromis, Pterobothrium heteracanthum infected M. undulatus, and Pterobothrium lintoni infected Menticirrhus americanus. Prevalence and intensity of infections of P. caryophyllum in C. nebulosus from Mississippi, roughly 40% of the fish each possessing an average of about two worms, …

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Herpetomonas Megaseliae And Crithidia Harmosa: Growth On Blood-Agar Plates, Amy Doran Kepel, John J. Janovy Jr. Oct 1977

Herpetomonas Megaseliae And Crithidia Harmosa: Growth On Blood-Agar Plates, Amy Doran Kepel, John J. Janovy Jr.

John J. Janovy, Jr. Publications

A technique for culturing two species of trypanosomatid flagellates on blood-agar plates is described. Herpetomonas megaseliae and Crithidia harmosa were grown as discrete clone colonies on plates prepared in sterile petri dishes with a medium derived from that of Tobie et al. (1950, J. Parasitol. 36: 48-54). Plates were inoculated with 0.01 ml flagellate suspension and the inoculum was spread evenly over the surface of the agar with a sterile glass spreader. Plates were incubated in a high humidity chamber at 25 C and colonies of both species, easily visible to the unaided eye, appeared within 1 week. There was …

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Myxosoma Funduli Kudo 1918 (Protozoa: Myxosporida) In Fundulus Kansae: Summer Epizootiology, Stephen A. Knight, John J. Janovy Jr., William L. Current Oct 1977

Myxosoma Funduli Kudo 1918 (Protozoa: Myxosporida) In Fundulus Kansae: Summer Epizootiology, Stephen A. Knight, John J. Janovy Jr., William L. Current

John J. Janovy, Jr. Publications

The occurrence and distribution of the myxosporidan Myxosoma funduli on the gills of the plains killifish (Fundulus kansae) were investigated; Fundulus kansae is reported as a new host. Host samples from various sites on the South Platte River, Nebraska, were collected during the summer months of 1975 and 1976. The protozoan parasite population was shown to be overdispersed within the host population, and this distribution was similar to that described by the negative binomial equation. Demographic characteristics of the infected fish subpopulation were virtually identical to those of the whole fish population. Infection intensity was independent of gill …

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Two New Zoogonid Digenea From Deep Sea Fishes In The Gulf Of Panama, Robin M. Overstreet, Mary Lou Hanson Pritchard Oct 1977

Two New Zoogonid Digenea From Deep Sea Fishes In The Gulf Of Panama, Robin M. Overstreet, Mary Lou Hanson Pritchard

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Panopula cavernossa gen. et sp. n. from the intestine of the brotulid Enchelybrotula (?) paucidens,/i> differs from other members of the Steganodermatinae by having testes near the anterior of the acetabulum, a posttesticular ovary, and a postequatorial acetabulum. Two related species are transferred to the genus Brachyenteron as B. pycnorganum comb. n. and B. spinosum comb. n. Neosteganoderma gillissi sp. n. from the synaphobranchid eel Synaphobranchus bathybius differs from N. glandulosum and N. polymixiae, the most similar species, because conspicuous glandular cells envelop the esophagus and pharynx, others about the genital atrium occur in elongated sacs, epithelium is lacking …

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Marine Aspidogastrids (Trematoda) From Fishes In The Northern Gulf Of Mexico, Sherman S. Hendrix, Robin M. Overstreet Oct 1977

Marine Aspidogastrids (Trematoda) From Fishes In The Northern Gulf Of Mexico, Sherman S. Hendrix, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Of the aspidogastrids Multicalyx cristata, Lobatostoma ringens, Cotylogaster basiri, and C. dinosoides sp. n., the last two had not been previously known from the Gulf of Mexico. The latter differs from other members of its genus by having relatively large equatorial marginal alveoli in comparison to those at the anterior and posterior ends of the holdfast. It also possesses extensive transverse musculature connecting opposed lateral alveoli. New host records are included for all four species, and we report preadults of what appear to be the first two species.

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Nematicidal Injection: Targeted Control Of Plant-Parasitic Nematodes Of Trees And Vines, D. R. Viglierchio, Armand R. Maggenti, R. V. Schmitt, G. A. Paxman Oct 1977

Nematicidal Injection: Targeted Control Of Plant-Parasitic Nematodes Of Trees And Vines, D. R. Viglierchio, Armand R. Maggenti, R. V. Schmitt, G. A. Paxman

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Pressurized injection of nematicidal solutions was effective for control of nematodes within trees and vines. Significant (P = 0.01) control of Pratylenchus vulnus on grape was attained with four nonfumigants (carbofuran, oxamyl, phenamiphos, and sulfocarb) and one fumigant nematicide (DBCP). Pratylenchus penetrans was controlled (P = 0.05 and 0.1) in apples and walnuts with sulfocarb and oxamyl. This species also was controlled in apples with carbofuran and phenamiphos. The advantages of pressure injection over traditional methods of nematicide applications are discussed.

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Monoecocestus Thomasi Sp. N. (Cestoda: Anoplocephalidae) From The Northern Flying Squirrel, Glaucomys Sabrinus (Shaw), In Oregon, Robert L. Rausch, C. Maser Oct 1977

Monoecocestus Thomasi Sp. N. (Cestoda: Anoplocephalidae) From The Northern Flying Squirrel, Glaucomys Sabrinus (Shaw), In Oregon, Robert L. Rausch, C. Maser

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Monoecocestus thomasi sp. n. (Cestoda: Anoplocephalidae), from the northern flying squirrel, Glaucomys sabrinus (Shaw), in Oregon, is described and distinguished from its congeners. Monoecocestus thomasi is the sixth species of Monoecocestus to be described from nearctic rodents, and the first from a member of the family Sciuridae. Our comparisons of taxonomic characters of the nominal species of Monoecocestus in North American rodents have shown that M. giganticus Buhler 1970 is a synonym of M. americanus (Stiles 1895), both from the porcupine, Erethizon dorsatum (Linnaeus). Insemination in Monoecocestus spp. is discussed, with the conclusion that it takes place only by way …

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The Immunizing Potential Of Sporulated Oocysts Of Eimeria Nieschulzi Exposed To Heat And Co-60 Gamma-Radiation, George A. Conder, Donald W. Duszynski Apr 1977

The Immunizing Potential Of Sporulated Oocysts Of Eimeria Nieschulzi Exposed To Heat And Co-60 Gamma-Radiation, George A. Conder, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Sporulated oocysts of Eimeria nieschulzi Dieben 1924, a rat coccidium, were exposed to radiation, heat, or both in an effort to attenuate the parasite. Moderate levels of each treatment or combination thereof attenuated the parasite, reduced pathogenesis (as judged by oocyst discharge during primary infection), and produced immunity to challenge when the oocysts were subsequently inoculated into rats. Thus, heat- and/or radiation-treated E. nieschulzi oocysts fed to rats could reduce pathogenesis during a primary infection and yet give good homologous protection.

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Life History And Host Specificity Of Mediorhynchus Centurorum Nickol 1969 (Acanthocephala: Gigantorhynchidae), Brent B. Nickol Feb 1977

Life History And Host Specificity Of Mediorhynchus Centurorum Nickol 1969 (Acanthocephala: Gigantorhynchidae), Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Examination of 1905 arthropods from a swamp and surrounding pasture in southern Louisiana revealed larval specimens of Mediorhynchus centurorum in 8 of 228 woodroaches, Parcoblatta pensylvanica, but in no other species. The life cycle was confirmed by feeding eggs of M. centurorum to laboratory-reared woodroaches. Cystacanths later recovered from the woodroaches developed into mature worms when pipetted into esophaguses of red-bellied woodpeckers, Centurus carolinus; redheaded woodpeckers, Melanerpes erythrocephalus; yellow-shafted flickers, Colaptes auratus; and a hairy woodpecker, Dendrocopos villosus. Infection was achieved in all woodpeckers fed cystacanths at least 47 days old and the mean prepatent …

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Aploparaksis Borealis Sp. N. (Cestoda: Hymenolepididae) From Passeriform And Charadriiform Birds In Chukotka And Alaska, S. K. Bondarenko, Robert L. Rausch Feb 1977

Aploparaksis Borealis Sp. N. (Cestoda: Hymenolepididae) From Passeriform And Charadriiform Birds In Chukotka And Alaska, S. K. Bondarenko, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty Publications

Aploparaksis borealis sp. n. (Cestoda: Hymenolepididae), from the long-tailed jaeger, Stercorarius longicaudus Vieillot, on the Seward Peninsula, Alaska, and from the red-throated pipit, Anthus cervinus (Pallas), and the Lapland longspur, Calcarius lapponicus (Linnaeus), in Chukotka, northeastern Siberia, is described. This cestode is distinguished by the structure of the cirrus and other morphologic characters from other species of Aploparaksis Clerc 1903 in which there are 10 rostellar hooks and the vitelline gland is aporal to the ovary. A. borealis is the first species of Aploparaksis to be reported from birds representing two orders (Passeriformes and Charadriiformes).

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Blood Parasites Of Squirrels From Coles And Lake Counties In Illinois, Nicholas I. Obiri Jan 1977

Blood Parasites Of Squirrels From Coles And Lake Counties In Illinois, Nicholas I. Obiri

Masters Theses

Hepatozoon and microfilariae are described from the blood of fox and gray squirrels captured in Coles and Lake Counties in Illinois during 1976 and 1977. The hepatozoon species is identified as Hepatozoon griseisciuri on the basis of parasite morphology and hosts. A higher rate of infection (35.7% : 11.1%) was observed in gray squirrels than in fox squirrels and more adults were infected than juveniles. No microfilariae were found in gray squirrels but fox squirrels had a 57.1% infection rate with no difference based on age. The observed microfilariae are similar to that described by Davidson from Maryland gray squirrels …

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