CAMPBELL, R. A. A new digenetic trematode, Gibsonia borealis sp. n. (Lepocreadiidae: Lepidapedinae), parasitic in the rattail, Macrourus berglax from the Flemish Cap off Newfoundland . . . . . . . . . . . . . . . 5
LINDSAY, D. S., S. J. UPTON, B. L. BLAGBURN, M. TOIVIO-KINNUCAN, J. P. DUBEY, C. T. McALLISTER, and S. E. TRAUTH. Demonstration that Sarcoystis montanaensishas a speckled kingsnake-prairie vole life cycle . . . . . . . . . . . . . . . 9
HUFFMAN, J. E., P. M. MURPHY, and B. FRIED. Superimposed infections in golden hamsters infected with Echinostoma caproni and Echinostoma trivolvis(Digenea: Echinostomatidae) . . . . . . . . . . . . . . . 16
ETGES, F. J. Zygocotyle lunata: Laboratory maintenance in snails and mice . . . . . . . . . . . . . . . 22
KRITSKY, D. C., W. A. BOEGER, and L. R. VAN EVERY. Neotropical Monogenoidea. 17. Anacanthorus Mizelle and Price, 1965 (Dactylogyridae, Anacanthorinae) from characoid fishes of the central Amazon . . . . . . . . . . . . . . . 25
VAN EVERY, L. R. and D. C. KRITSKY. Neotropical Monogenoidea. 18. Anacanthorus Mizelle and Price, 1965 (Dactylogyridae, Anacanthorinae) of piranha (Characoidea, Serrasalmidae) from the central Amazon, their phylogeny, and aspects of host-parasite coevolution . . . . . . . . . . . . . . . 52
AMIN, O. M. Cestoda from lake fishes in Wisconsin: The ecology and interspecific relationship of bothriocephalid cestodes in walleye, Stizostedion vitreum . . . . . . . . . . . . . . . 76
KOGA, M. and Y. ISHII. Surface topography of adults and eggs of Gnathostoma doloresi (Nematoda: Spirurida) from the wild boars (Sus scrofa leucomystax) . . . . . . . . . . . . . . . 83
KINGSTON, N., B. BOBEK, I. WITA, and L. MAKI. Description of Trypanosoma (Megatrypanum) stefanskii sp. n. from roe deer (Capreolus capreolus) in Poland . . . . . . . . . . . . . . . . . 89
GOMEZ-BARCINA, A., M. R. SIDDIQI, and P. CASTILLO. The genus Bitylenchus Filip'ev, 1934 (Nematoda: Tylenchida) with descriptions of two new species from Spain . . . . . . . . . . . . . . . 96
WILLIAMS, E.H., Jr. and W. G. DYER. Some Digenea from freshwater fishes of Alabama and Florida including Allocreadium (Neoallocreadium) lucyae sp. n. (Digenea: Allocreadiidae) . . . . . . . . . . 111
SCHMIDT, G. D. and M. D. DAILEY. Amazilolepis trinidadensis gen. n., sp. n. (Cestoidea: Hymenolepididae) from the copper-rumped hummingbird, Amazilia tobaci, in Trinidad, West Indies . . . . . . . . . . . . . . 117
MOHAMMED, O. B. and H. S.HUSSEIN. Eimeria idmii sp. n. (Apicomplexa: Eimeriidae) from the Arabian mountain gazelle, Gazella gazella, in Saudi Arabia . . . . . . . . . . . . . . . 120
GOLDBERG, S. R. and C. R. BURSEY. Gastrointestinal helminths of the lizard, Sceloporus malachiticus (Sauria: Iguanidae), from Costa Rica . . . . . . . . . . . . . 125
DUBEY, J. R., A. N. HAMIR, C. BROWN, and C. E. RUPPRECHT. Sarcocystis sehi sp. n. (Protozoa: Sarcocystidae) from the porcupine (Erethizon dorsatum) . . . . . . . . . . . . 127
GOLDBERG, S. R. and C. R. BURSEY. Helminths of the bunch grass lizard, Sceloporus scalaris slevini (Iguanidae) . . . . . . . . . . . 130
GOLDBERG, S. R. and C. R. BURSEY. Helminths of the marine toad, Bufo marinus (Anura: Bufonidae), from American Samoa . . . . . . . . 131
NOLAN, T. J. and G. A. SCHAD. Cryopreservation of infective third-stage larvae of Strongyloides ratti . . . . . . . . . . 133
THRELFALL, W. Histochemical observations on Cyathostoma lari (Strongyloidea: Syngamidae) . . . . . . . . . . 135
RICKARD, L. G. and W. J. FOREYT. Experimental fascioliasis in llamas . . . . . . . . . . . . . . . . . 140
OBENDORF, D. L. and K. P. CLARKE. Trichinella pseudospiralis infections in free-living Tasmanian birds . . . . . . . . . . . . . . 144
TIMMONS, T. J., R. J. SCHULER, Jr., and L. F. DUOBINIS-GRAY. Prevalence of Acetodextra amiuri (Trematoda: Cryptogonimidae) in channel catfish, Ictalurus punctatus, from Kentucky Lake, Kentucky-Tennessee . . . . . . . . . . . . . . . 147