PILITT, P. A., J. R. LICHTENFELS and P. A. MADDEN. Differentiation of Fourth and Early Fifth Stages of Parascaris equorum (Goeze, 1782) Nematoda: Ascaridoidea . . . .15
NICKLE, WILLIAM R. Probable Establishment and Overwintering of a Mermithid Nema$ Parasite of Mosquitoes in Maryland . . . . . . 21
YOUNG, VALERIE E. and DANNY B. PENCE. Redescription and Notes on the Ecology of Pterygondermatites (Multipectines) cahirensis (Jaegerskioeld, 1909) Quentin, 1969 (Nematoda: Riculariidae) from West Texas Carnivores . . . . . . 28
PILITT, P. A. and S. R. WIGHTMAN. A Redescription of Dentostomella translucida Schulz and Krepkorgorskaja, 1932 (Nematoda: Heteroxynematidae) Parasite of Domestic Mongolian Gerbils, Meriones unguiculatus Milne-Edwards . . . . . . . . 36
FINCHER, G. T. and T. B. STEWART. Vertical Migration by Nematode Larvae of Cattle Parasites Through Soil . . . . . . . 43
BARNHART, M. CHRISTOPHER and EDWIN C. POWELL. Lissorchis kritskyi sp. n. (Digenea: Lissorchiidae) from the River Carpsucker, Carpiodes carpio (Rafinesque) . .47
BROOKS, DANIEL R., MONTE A. MAYES, and THOMAS B. THORSON. Paravitellotrema overstreeti sp. n. (Digenea: Hemiuridae) from the Colombian Freshwater Stingray, Potamotrygon magdalenae Dumeril . . . . . . 52
BROOKS, DANIEL R. and JAMES R. PALMIERI. Neopronocephalus orientalis sp. n. (Digenea: Pronocephalidae) and Spirhapalum elongatum Rhode, Lee, and Lim, 1968 (Digenea: Spirorchiidae) from Cuora amboinensis (Daudin) in Malaysia . . . . . 55
GUTH, BRIAN D., HARVEY D. BLANKESPOOR, RONALD L. REIMINK, and WILBUR C. JOHNSON. Prevalence of Dermatitis-Producing Schistosomes in Natural Bird Populations of Lower Michigan . . . . . . 58
TAFT, STEPHEN J. Histochemistry of the Miracidial and Early Redial Stage of Cyclocoelum oculeum (Trematoda: Cyclocoelidae) . . . . . . 64
RIED, BERNARD and MELYNDA L. HOLMES. Further Studies on the Development of Leucochloridiomorpha constantiae (Trematoda) Metacercariae on the Chick Chorioallantois . . . . . . . 70
CAMPBELL, RONALD A. Two New Genera of Pseudophyllidean Cestodes from Deep-Sea Fishes . . . . . . 74
OLSEN, O. WILFORD and ROBERT E. KUNTZ. Fuhrmannetta (Fuhrmannetta) bandicotensis sp. n. of Cestode (Eucestoda, Davaineidea, Davaineidae) from the Bandicoot (Bandicota indica nemorivaga Hodgson, 1836) from Taiwan . . . . . . 79
WILLIAMS, ERNEST H., Jr. Penarchigetes fessus sp. n. from the Lake Chubsucker, Erimyzon sucetta (Lacepede) in the Southeastern United States . . . . . . 84
CAMPBELL, RONALD A. and JUAN CARAVAJAL G. Synonmy of the Phyllobothriid Genera Rhodobothrium Linton, 1889, Inermiphyllidium Riser, 1955, and Sphaerobothrium Euzet, 1959 (Cestoda: Tetraphyllidae) . . . . . . 88
MOLLHAGEN, TONY. The Cysticercus of Taenia rileyi Loewen, 1929 . . . . . 98
STUNKARD, HORACE W. Abortilepis abortive (Von Linstow, 1904) Yamaguti, 1959 (Cestoda: Hymenolepididae), a Parasite of Ducks . . . . . . 102
DUNAGAN, T. T. and DONALD M. MILLER. Genital Ganglion and Associated Nerves in Male Macracanthorhynchus hirudinaceus (Acanthocephala) . . . . . . 106
FLEMING, W. JAMES, JAY R. GEORGI, and JAMES W. CASLICK. Parasites of the Woodchuck (Marmota monax) in Central New York State . . . . . . 115
SUTHERLAND, DANIEL R. and HARRY L. HOLLOWAY, Jr. Parasites of Fish from the Missouri, James, Sheyenne, and Wild Rice Rivers in North Dakota . . . . . . 128
LEVINE, NORMAN D. and THOMAS J. HUSAR. Rediscovery and Redescriptions of Eimeria miyairii Ohira, 1912 from the Norway Rat . . . . . . 135
GEORGI, JAY R. Differential Characters of Filaroides milksi Whitlock, 1956 and Filaroides hirthi Georgi and Anderson, 1975 . . . . . . 142
McLOUGHLIN, D. K. and M. B. CHUTE. Loss of Amprolium Resistance in Eimeria tenella by Admixture of Sensitive and Resistant Strains . . . . . . 138
BRADLEY, JANE E. and NORMAN O. DRONEN, Jr. Some Helminth Parasites of the Common Grackle of Southern Texas . . . . . . 149
LEEK, ROBERT G. and R. FAYER. Survival of Sporocysts of Sarcocystis in Various Media . . . . . . 151
PENCE, DANNY B. and DARWIN L. SHELL. Helminths of the Lesser Prairie Chicken, Tympanuchus pallidicintus (Ridgway) (Tetraonidae), from the Texas Panhandle . . . . . . 146
WAGNER, EDWARD D. Observations on “Large” Trichuris Eggs in Man . . . . . . . 155
WILLIAMD, DENNIS D. Lissorchis hypentelii (Trematoda: Lissorchiidae) from Red Cedar River, Wisconsin, Catostomid Fishes . . . . . 150
Announcements
Obituary Notices
Reinard Harkema . . . . . . . . . . 14
Harry Mathias Martin . . . . . . 14
Report on the Brayton H. Ransom Memorial Trust Fund . . . . . . 27
Editor’s Note . . . . . . 35
Second International Congress of Systematic and Evolutionary Biology . . . . . 51
Call for Papers . . . . . . 63
Proceedings-New Style . . . . . . 137
Jesse Roy Christie-A Tribute . . . . . . 158
Skrjabin Centenary Tribute . . . . . . 160
Presentation- 1978 Anniversary Award to Kenneth Casper Kates . . . . . . 162