Life Sciences Commons^™

A New And Unusual Eimerian (Protozoa: Eimeriidae) From The Liver Of The Gulf Killifish, Fundulus Grandis, Donald W. Duszynski, Mobashir A. Solangi, Robin M. Overstreet

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Oocysts and sporocysts of Eimeria funduli sp. n. are described from the Gulf killifish, Fundulus grandis, on the basis of light microscopy, transmission and scanning electron microscopy, and location in the liver of infected hosts. The spherical sporulated oocysts of E. funduli isolated from liver tissue measure 20-31(25) μm across with ovoid sporocysts 9-11 × 5-7 (10 × 6) μm. A micropyle, polar granule, and oocyst residuum are absent, but sporocysts have Stieda and substieda bodies, a few residual granules, and 10-25 (15) unique projecting structures with expanded distal portions that we term “sporopodia.” Sporopodia 1-3 (2) μm high …

Alveolar Hydatid Disease In Minnesota: First Human Case Acquired In The Contiguous United States, William G. Gamble, Martin Segal, Peter M. Schantz, Robert L. Rausch

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A 56-year-old woman from southwestern Minnesota underwent an extended left hepatic lobectomy to remove a large multinodular mass with a necrotic central cavity. The clinical, serological, and pathological findings led to the diagnosis of alveolar hydatid disease, and specific identification of Echinococcus multilocularis was achieved by growing mature larvas in voles inoculated intraperitoneally with tissue from the hepatic lesions. The patient probably acquired her infection some years previously from pet cats or dogs that had become infected by ingesting infected rodents. In North America E. multilocularis is enzootic in the northern tundra zone of Alaska and Canada. Since 1964 the …

Nueva Especie Del Género Acanthobothrium Van Benedem 1849; Cestode: Tetraphyllidea De Myliobatis Peruvianus Garman 1913, Ruperto Severino L., Luz Sarmiento B.

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Se describe Acanthobothrium gonzalesmugaburoi n.sp. (Cestoda: Tetraphyllidea: Onchobotriidae) hallado en la válvula espiral de 10 ejemplares de "raya aguila" Myliobatis peruvianus Garman, 1913, procedentes del litoral peruano. Difiere de las demás especies del género, por el número y distribución de los testículos y por la longitud total del gancho. Huésped y localidad se señalan por primera vez.

Introduction: Harold W. Manter And Parasitology, Franklin Sogandares-Bernal

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Introductory remarks given by Franklin Sogandares-Bernal of Southern Methodist University at a symposium held at the University of Nebraska-Lincoln, Lincoln, Nebraska, U.S.A., October 5-7, 1977, on host-parasite interfaces. An overview of the career of American parasitologist Harold Winfred Manter, whose career was spent as a professor at the University of Nebraska-Lincoln, is presented.

Dedication In Host-Parasite Interfaces, Edited By Brent B. Nickol, Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Dedication in Host-Parasite Interfaces, edited by Brent B. Nickol, proceedings of a symposium held at the University of Nebraska-Lincoln, Lincoln, Nebraska, U.S.A., October 5-7, 1977.

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

Harold W. Manter Laboratory of Parasitology: Faculty and Staff 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.

A Filamentous Bacterium On The Brine Shrimp And Its Control, Mobashir A. Solangi, Robin M. Overstreet, Ann L. Gannam

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

A strain of a colorless, filamentous bacterium (tentatively identified as Leucothrix mucor) heavily infests the brine shrimp, Artemia salina. Its ultrastructure, unlike that of some other strains, does not reveal a distinct middle layer between its outer cell wall layer and cytoplasmic membrane, irregular blebs extending from the cell layers, or an external sheath. An entire infestation, represented as a mat of the bacterium with associated debris and microorganisms, sloughs from the shrimp when exposed to a variety of treatments. Primarily because most effective treatments are toxic to the shrimp, 100 ppm terramycin provides the treatment of choice.

Preface To Host-Parasite Interactions, Edited By Brent B. Nickol, Brent B. Nickol

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Preface to Host-Parasite Interactions, edited by Brent B. Nickol, proceedings of a symposium held at the University of Nebraska-Lincoln, Lincoln, Nebraska, U.S.A., October 5-7, 1977.

Scanning And Transmission Electron Microscopy Of The Oocyst Wall Of Isospora Lacazei, Clarence A. Speer, Alan A. Marchiondo, Bodo Mueller, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The oocyst wall of Isospora lacazei from sparrows was studied with scanning (SEM) and transmission (TEM) electron microscopy. In TEM, t he oocyst wall consisted of four distinct layers (Ll-4). The innermost layer, Ll, was moderately electron-lucent and 240-285 nm thick; L2 was electronJense and 210-240 nm thick; L3 was moderately electron-lucent and 15-150 nm thick; L4, the outer most layer, was discontinuous and consisted of electron-dense discoid bodies which measured 180-220 nm x 320-840 nm. The discoid bodies of L4 as seen by TEM appeared spheroid in shape when observed by SEM. One or two membranes were situated on …

Endoparasites, John E. Ubelaker, Robert D. Specian, Donald W. Duszynski

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The leaf-nosed bats of the New World family Phyllostomatidae occur from the southwestern United States through tropical Central and South America. Members of this family are also found throughout the Antilles. The ecological associations of the species in this family seem to be rather broad; species are found in humid tropical to semiarid and arid subtropical environments. Diversity in feeding is readily apparent ranging from nectivores (Glossophaga), frugivores (Artibeus), sanguivores (Desmodus), to omnivores (Phyllostomus) (see review by Glass, 1970; Gardner, this volume).

To understand better the biology of phyllostomatid bats, it is …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large. triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cutick of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse groove …

Paravitellotrema Overstreeti Sp. N. (Digenea: Hemiuridae) From The Colombian Freshwater Stingray Potamotrygon Magdalenae Dumeri, Daniel R. Brooks, Monte A. Mayers, Thomas B. Thorson

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Paravitellotrema overstreeti from the freshwater stingray Potamotrygon magdalenae in northern Colombia most closely resembles P. thorsoni by possessing a muscular sinus organ and sinus sac as well as exhibiting a saccate rather than elongate prostatic vesicle, It differs by possessing lobate rather than spherical vitellaria, a smaller sinus organ and sinus sac, elongate rather than diamond-shaped prostatic cells enclosed in a delicate membrane rather than free in the parenchyma, and a metraterm joining the hermaphroditic duct immediately anterior to the prostatic vesicle rather than at the base of the sinus organ,

Neopronocephalus Orientalis Sp. N. (Digenea: Pronocephalidae) And Spirhapalum Elongatum Rohde, Lee, And Lim, 1968 (Digenea: Spirorchiidae) From Cuora Amboinensis (Daudin) In Malaysia, Daniel R. Brooks, James R. Palmieri

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Neopronocephalus orientalis from Cuora amboinensis in Malaysia most closely resembles N. spinometraterminis from Kachuga tectum tentoria in India by possessing postovarian cecal tips and an average of more than 30 vitelline follicles, but differs by having equatorial rather than preequatorial testes which are mostly intercecal rather than extracecal and a slightly smaller cirrus sac, Neopronocephaius spinometraterminis purportedly has spines in the metraterm and a common genital pore, whereas N . orientalis exhibits nonstaining wrinkled epithelium lining the metraterm and separate genital pores. Spirhapalum elongatum was also collected from its type host near the type locality.

New Records For Amphibian And Reptile Trematodes, Daniel R. Brooks

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

From 1975 to 1978, 200 amphibians and reptiles from localities in Nebraska, Arkansas, Oklahoma, Louisiana, Mississippi, Florida, North Carolina, and West Virginia were examined for trematode parasites. This report provides additional information concerning the geographical distribution of North American amphibian and reptile trematodes. Some results have already been published (Brooks and Fusco, 1978, J. Miss. Acad. Sci. 23:95-99). Worms, removed from their hosts, were examined alive when possible, and fixed with AFA after flattening with slight coverslip pressure. Specimens were stored in 7{)1lO ethanol, then stained with Mayer's hematoxylin and mounted in Histoclad or Canada balsam for study as whole …

Differentiation Of Fourth And Early Fifth Stages Of Parascaris Equorum (Goeze, 1782) Nematoda: Ascaridoidea, P. A. Pilitt, J. R. Lichtenfels, P. A. Madden

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

The morphology of Parascaris equorum of horses was studied; light and scanning electron microscopy were used. Late fourth-stage larvae have narrow, rectangular lips bearing few, large . triangular, irregularly spaced denticles and the lips are not markedly set off from the body. The cuticle of the late fourth stage is completely transversely striated, with incomplete longitudinal ridges creating a brickwork pattern; longitudinal alae are present. Total body lengths of fourth-stage larvae range from 10 to 32 mm. A single molting fourth-stage male was found to be 33 mm long. Early fifthstage nematodes have wide, trilobate lips with a deep transverse …

Oligacanthorhynchus Lamasi (Freitas And Costa, 1964) Comb. N. From Domestic Cats Of Brazil, J. F.R. Amato, Brent B. Nickol, O. M. Froes

Harold W. Manter Laboratory of Parasitology: Faculty and Staff Publications

Freitas and Costa (1964, Arq. Esc. Vet. Univ. Fed. Minas Gerais 16:231-234) described a new species, Echinopardalis lamasi, from two acanthocephalans (1 male, 1 female) of a cat, Felis domestica (=F. catus), captured in Belo Horizonte, Minas Gerais. These specimens have been lost (Freitas, 1975, personal communication). Until two of 127 domestic cats, F. catus, from Porto Alegre, Rio Grande do SuI, captured between October 1973 and July 1976, were found to harbor respectively two and nine acanthocephalans conspecific with those described by Freitas and Costa, no additional specimens of this species were available for study. These new specimens assist …