BERGSTORM, ROBERT C. and BARBARA A. WERNER. Nematospiroides dubius Baylis, 1926 (Syn. Heligmosomoides polygyrus (Duj., 1845) Railliet et Henry, 1901) from the Uinta Ground Squirrel, Spermophilus armatus Kennicott, 1863 from Teton National Park, Wyoming . . . . . . 13
BROOKS, DANIEL R., MONTE A. MAYERS and THOMAS B. THORSON. Systematic Review of Cestodes Infecting Freshwater Stingrays (Chondrichthyes: Potamotrygoniae) Including Four New Species from Venezuela . . . . . . 43
BUTTERWORTH, ERIC W. and MARY BEVERLEY-BURTON. Observations on the Prevalence and Intensity of Capillaria spp. (Nematoda: Trichuroidea) in Wild Carnivora from Ontario, Canada . . . . . . 24
CHRISTENSEN, BRUCE M. A Taxonomic Review of the Genus Loxogenoides (Digenea: Lecithodendriidae) with a Description of Loxogenoides loborchis sp. n. from Rana catesbeiana Shaw in Western Kentucky . . . . . . 65
FISCHTHAL, JACOB H. and ROBERT E. KUNTZ. Additional Records of Digenetic Trematodes of Mammals from Taiwan . . . . . . 71
FRIED, BERNARD and MARTIN S. SCHNIER. Infectivity of Amblosoma suwaense (Trematoda: Brachylaimidae) in the Domestic Chick . . . . . . 83
GRANATH, WILLARD O. Jr. Eufilaria hibleri sp. n. (Nematoda: Filarioidea) from the Common Grackle (Quiscalus quiscula versicolor) . . . . . . 17
MAYES, MONTE A., DANIEL R. BROOKS, and THOMAS B. THORSON. Two New Tetraphyllidean Cestodes from Potamotrygon circularis Garman (Chondrichthyes: Potamotrygonidae) in the Itacuai River, Brazil . . . . . . 38
NOLAN, THOMAS J. and FRANK F. KATZ. Transmammary Transmission of Strongyloides venezuelensis (Nematoda) in Rats . . . . . . 8
PILITT, P. A., J. R. LICHTENFELS, F. G. TROMBA, and P. A. MADDEN. Differentiation of Late Fourth and Early Fifth Stages of Ascaris suum Goeze, 1782 (Nematoda: Ascaridoidea) in Swine . . . . . . 1
STROHM, BRIAN C., HARVEY D. BLANKESPOOR, and PETER G. MEIER. Natural Infections of the Dermatitis-Producing Schistosome Gigantobilharzia Najim, 1950 in Passerines in Southeastern Michigan . . . . . . 80
COGGINS, JAMES R., JOHN L. TEDESCO, and CHARLES RUPPRECHT. Intestinal Helminths of the Bat, Myotis keenii (Merriam), from Southeastern Wisconsin . . . . . . 93
CONDER, GEORGE A., JOHN R. CRELLIN and FERRON L. ANDERSEN. Comparative Evaluation of Collection and Fixation Techniques for Echinococcus granulosus . . . . . . 101
FRIED, BERNARD and BRIAN D. WILSON. Survival of Metacercariae of Zygocotyle lunata (Trematoda) in Half-Strength Locke’s Solution under Refigeration . . . . . . 96
FRIED, BERNARD and BRIAN D. WILSON. Decrease in the Body Weight of Domestic Chicks Infected with Echinostoma revolutum (Trematoda) or Zygocotyle lunata (Trematoda) . . . . . . 97
KAEDING, LYNN R. Observations on Eustrongylides sp. Infection of Brown and Rainbow Trout in the Firehole River, Yellowstone National Park . . . . . . 98
MUELLER, BODO E. G. and CLARENCE A. SPEER. Eimeria Canadensis: Intracellular Motility of a Sporozoite-Shaped Schizont in Vitro . . . . . . 87
MUZZALL, PATRICK M. Parasites of the Isopod, Caecidotea communis, and Amphipod, Hyalella azteca, in New Hampshire . . . . . . 91
RAJENDRAN, M., K. VIJAYAKUMARAN NAIR and A. M. NADAKAL. A Note on an Abnormal Cysticercoid of Raillietina echinobothrida (Megnin, 1881) . . . . . . 104
THRELFALL, WILLIAM. Helminth Parasites of an American Flamingo from Newfouldland, Canada . . . . . . 89
Call for Papers . . . . . . . . . . . . . . . 42
Fifth International Congress of Parasitology . . . 70
Obituary Notice-Everett Elmer Wehr . . . . . . . 79
Presentation-1980 Anniversary Award . . . . . . 105
70th Anniversary Meeting . . . . . . . 110
Survey or Taxonomic Papers . . . . . 64