PéREZ-PONCE DE LEÓN, G. The Diversity of Digeneans (Platyhelminthes: Cercomeria: Trematoda) in Vertebrates of Mexico . . . . . . . . . 1
PÉREZ-PONCE DE LEÓN, G., F. A. JIMÉNEZ R., B. MENDOZA-GARFIAS, and L. GARCÍA-PRIETO. Helminth Parasites of Garter Snakes and Mud Turtles from Several Localities of the Mesa Central of Mexico . . . . . . . . . 9
BURSEY, C. R., S. R. GOLDBERG, and J. R. PARMELEE. Gastrointestinal Helminths of Fifty-One Species of Anurans from Reserva Cuzco Amazónico, Peru . . . . . . 21
HOGUE, C. C., and J. S. PENG. Endohelminths of White Croaker (Genyonemus lineatus) from Los Angeles Harbor, Southern California, U.S.A. . . . . . 36
AGUIRRE-MACEDO, M. L., T. SCHOLZ, D. GONZÁLEZ-SOLÍS, V. M. VIDAL-MARTÍNEZ, P. POSEL, G. ARJONA-TORRES, E. SIU-ESTRADA, and S. DUMAILO. Larval Helminths Parasitizing Freshwater Fishes from the Atlantic Coast of Nicaragua . . . . . . . . 42
CAIRA, J. N., and A. N. BURGE. Three New Species of Acanthobothrium (Cestoda: Tetraphyllidea) from the Ocellated Electric Ray, Diplobatis ommata, in the Gulf of California, Mexico . . . . . 52
KRITSKY, D. C., W. A. BOEGER, and R. B. ROBALDO. Neotropical Monogenoidea: 38. Revision of Rhabdosynochus Mizelle and Blatz, 1941 (Polyonchoinea: Dactylogyridea: Diplectanidae), with Descriptions of Two New Species from Brazil . . . . . . 66
VIDAL-MARTÍNEZ, V. M., T. SCHOLZ, and M. L. AGUIRRE-MACEDO. Dactylogyridae of Cichlid Fishes from Nicaragua, Central America, with Descriptions of Gussevia herotilapiae sp. n. and Three New Species of Sciadicleithrum (Monogenea: Ancyrocephalinae) . . . . . 76
AGARWAL, N., V. S. YADAV, and D. C. KRITSKY. On Ancyrocephalas etropli Gussev, 1963, from Etroplus suratensis (Perciformes: Cichlidae) in India, with Proposal of Sclerocleidoides gen. n. (Monogenoidea: Dactylogyridae: Ancyrocephalinae . . . . . 87
NEIFAR, L., L. EUZET, and O. K. BEN HASSINE. Heterochocotyle gymnurae sp. n. (Monogenea: Hexabothriidae), a Gill Parasite of Gymnura altavela (Elasmobranchii: Gymnuridae) from the Mediterranean Sea . . . . . . 91
KHARCHENKO, V. A., J. R. LICHTENFELS, and R. C. KRECEK. Cyathostomum montgomeryi and Its Place in the Cyathostominae (Nematoda: Strongylidae) . . . . . . 97
AMIN, O. M. Neoechinorhynchus didelphis sp. n. (Acanthocephala: Neoechinorhynchidae) from Redfin Pickerel, Esox americanus, in Georgia, U.S.A. . . . . . . . 103
AMIN, O. M., R. S. S. AL-SADY, F. T. MHAISEN, and S. F. BASSAT. Neoechinorhynchus iraqensis sp. n. (Acanthocephala: Neoechinorhynchidae) from the Freshwater Mullet (Heckel), Liza abu, in Iraq . . . . . 108
WRIGHT, M. E. and M. A. CURTIS. Transmission of Diphyllobothrium dendriticum (Nitzsch) from Calanoid Copepods to Arctic Charr, Salvelinus alpinus (Linnaeus) . . . . . . 112
FEDYNICH, A. M., T. MONASMITH, and S. DEMARAIS. Helminth Community Structure and Pattern in Merriam's Kangaroo Rats, Dipodomys merriami Mearns, from the Chihuahuan Desert of New Mexico, U.S.A. . . . . . . 116
MILEK, J. A. and R. S. SEVILLE. Species of Eimeria (Apicomplexa: Eimeriidae) from the Southern Red-Backed Vole, Clethrionomys gapperi, in Northwestern Wyoming, U.S.A. . . . . . . . 122
ROSSI, M. L., C. D. BALFOUR,and B. FRIED. Excystation and Infectivity of Echinostoma caproni Metacercariae after Prolonged Storage . . . . . . 126
J. M. KINSELLA, G. W. FOSTER, and D. J. FORRESTER. Parasitic Helminths of Five Species of Owls from Florida, U.S.A. . . . . . 130
M. R. RUIZ DE YBAÑEZ, J. M. ORTIZ, M. M. GARIJO, G. ESPESO, T. ABAIGAR, M. CANO. Description of Eimeria spp. and Their Patterns of Excretion in Captive North African Gazelles . . . . . . 134
S. R. GOLDBERG and C. R. BURSEY. Gastrointestinal Helminths of Gekkonid Lizards (Sauria: Gekkonidae) from the Philippine Islands and Thailand . . . . . 138