BARTOLI, P. and J. C. HOLMES. A transmission study of two sympatric digeneans: spatial constraints and solutions.............................................................................................................................................................................169
FEDYNICH, A. M., D. B. PENCE, and J. F. BERGAN. Helminth community structure and pattern in sympatric populations of double-crested and neotropical comorants...........................................................................................................................................................................176
DEMAREE, R. S., Jr., R. L. CRITCHFIELD, and S. P. TINLING. Oschmarinella macrorchis sp. n., (Digenea: Campulidae) from the liver sinuses of a beaked whale, Mesoplodon stejnegeri (Cetacea: Ziphiidae)...........................................................................................................................................................................183
DYER, W. G., L. BUNKLEY-WILLIAMS, and E. H. WILLIAMS, Jr. Parasites of the dolphinfish (Coryphaena hippurus) in Puerto Rico.....................................................................................................................................................................................188
SALGADO-MALDONADO, G., R. PINEDA-LÓPEZ, V. M. VIDAL-MARTÍEZ and C. R. KENNEDY. A checklist of metazoan parasites of cichlid fish from México................................................................................................................................................................................195
KRITSKY D. C., W. A. BOEGER, and M. JÉGU. Neotropical Monogenoidea. 30. Ancyrocephalinae (Dactylogyridae) of piranha and their relatives (Teleostei, Serrasalmidae) from Brazil: species of Calpidothecium gen. n., Calpidothecioides gen. n., Odothecium gen. n., and Notothecioides gen. n............208
BROUDER, M. J. and T. L. HOFFNAGLE. Distribution and prevalence of the Asian fish tapeworm, Bothriocephalus acheilognathi, in the Colorado River and tributaries, Grand Canyon, Arizona, including two new host records...............................................................................................................................................................................219
RIGBY, M. C. and W. F. FONT. Redescription and range extension of Spirocamallanus istiblenni Noble, 1966 (Nematoda: Camallanidae) from coral reef fishes in the Pacific.................................................................................227
BURSEY, C. R., C. T. McALLISTER, and P. S. FREED. Spauligodon petersi sp. n. and Spauligodon smithi sp. n. from lizards of Cape Province, South Africa.................................................................................................................................................................................234
MORAVEC, F., G. SALGADO-MALDONADO, and E. MAYEN-PEÑA. Thubunaea ctenosauri sp. n. (Nematoda: Physalopteridae) from the iguanid lizard, Ctenosauria pectinata, and other lizard helminths from Mexico................................................................................................................................................................................240
GOLDBERG, S. R., C. R. BURSEY, and H. CHEAM. Helminths of twelve species of Anolis lizards (Polychrotidae) from the Lesser Antilles, West Indies..........................................................................................................................248
SCOTT, T. P, S. R. SIMCIK, and T. M. CRAIG. Endohelminths of American alligators (Alligator mississippiensis) from southeast Texas......................................................................................................................................................258
HASEGAWA, H. and SYAFRUDDIN. Maxomystrongylus yasumai gen. and sp. n. (Nematoda: Trichostrongylina: Heligmonellidae) collected from murid rodents in Kalimantan, Indonesia.............................................................263
FLEMMING, M. W. Effects of exogenous reproductive hormones on Haemonchus contortus populations in lambs................................................................................................................................................................................269
AMIN, O. M. and A. CANARIS. Description of Neolacunisoma geraldschmidti gen. n., sp. n. (Acanthocephala: Centrorhynchidae) from South African shorebirds..................................................................................................275
LYONS, E. T., S. C. TOLLIVER, K. J. McDOWELL, and J. H. DRUDGE. Field test of activity of the low dose rate (2.64 mg/kg) of pyrantel tartrate on Anoplocephala perfoliata in thoroughbreds on a farm in central Kentucky........................................................................................................................................................................283
LYONS, E. T., S. C. TOLLIVER, and J. H. DRUDGE. Further evaluation of pyrantel pamoate at the therapeutic dose rate (6.6 mg base/kg) against Anoplocephala perfoliata in horses.....................................................................285
LYONS, E. T., S. C. TOLLIVER, K. J. McDOWELL, and J. H. DRUDGE. Atypical external characteristics of Anoplocephala perfoliata in equids in central Kentucky.....................................................................................287
BOLEK, M. G. Seasonal occurrence of Cosmocercoides dukae and prey analysis in the blue-spotted salamander, Ambystoma laterale, in southeastern Wisconsin.............................................................................292
TAFT, S. J., E. A. JACOBS, and R. N. ROSENFIELD. Hematozoa of spring and fall migrating northern saw-whet owls (Aegolius acadicus) in Wisconsin............................................................................................................................296
MATSOU, K. and H. SUPRANMAN. Some parasites of Sumatran elephants in Indonesia.......................................298