McCALLISTER, G. L. The effect of Thelastoma bulhoesi and Hammerschmidtiella diesingi (Nematoda: Oxyurata) on host size and physiology in Periplantea americana (Arthropoda: Blattidae) . . . . . 12
BOYCE, W. M., B. A. BRANSTETTER, and K. R. KAZACOS. In vitro culture of Baylisascaris procyonis and initial analysis of larval excretory-secretory antigens . . . . . . . . 15
STRINGFELLOW, F. An in vitro test for drug resistance in Haemonchus contortus . . . . . . . . . . 19
KRECEK, R. C. and K. D. MURRELL. Observations on the ability of larval Ostertagia ostertagi to migrate through pasture soil . . . . . 24
SAYRE, R. M., M. P. STARR, A. M. GOLDEN, W. P. WERGEN, and B. Y. ENDO. Comparison of Pasteuria penetrans from Meloidogyne incognita with a related mycelial and endospore-forming bacterial parasite from Pratylenchus brachyurus . . . . . . . 28
ALLEN, P. C. Effects of coccidiosis on activities of glycogen phosphorylase and glycogen synthase in livers from 2- to 3-week-old broiler chicks . . . . . . . . 50
KOCAN, A. A., K. M. KOCAN, C. HAZEN-KARR, and J. A. HAIR. Electron microscopic observations of Theileria cervi in salivary glands of male Amblyomma americanus . . . . . . . . . . . 55
De OLIVEIRA, E. F., J. F. R. AMATO, and M. KNOFF. A new species of Hysterolecitha (Trematoda: Hemiuridae) from the mullet, Mugil liza, in the state of Rio de Janeiro, Brazil . . . . . . . . 58
THONEY, D. A. and E. M. BURRESON. Revision of the Multicalycidae (Aspidocotylea) with comments on postlarval development . . . . . . 62
SHULTS, L. M. and K. J. FROST. Helminth parasites of ribbon seals, Phoca fasciata, in the Bering Sea and their intermediate hosts . . . . . . 68
ARCHIE, I. H., B. B. Babero, and H. N. DWYER. Some helminth parasites of chipmunks, Eutamias spp. (Sciuridae) in southern Nevada . . . . . . 74
LICHTENFELS, J. R., P. A. PILITT, and M. B. LANCASTER. Cuticular ridge patterns of seven species of Oetertagiinae (Nematoda) parasitic in domestic ruminants . . . . . . . . . . 77
BOEGER, W. A. and V. E. THATCHER. Rhinergasilus piranhus gen. et sp. n. (Copepoda, Poecilostomatoida, Ergasilidae) from the nasal cavities of piranha cajú Serrasalmus nattereri, in the central Amazon . . . . . . 87
BOWMAN, D. D., D. ABRAHAM, M. MIKA-GRIEVE, and R. B. GRIEVE. Binding concanavalin A to areas compatible with the locations of the amphids and phasmids of larvae of Dirofilaria immitis (Nematoda: Filarioidea) and Toxocara canis (Nematoda: Ascaridoidea) . . . . . . 94
LICHTENFELS, J. R., P. A. PILITT, and L. F. LE JAMBRE. Spicule lengths of the ruminanat stomach nematodes Haemonchus contortus, Haemonchus placei, and their hybrids . . . . . . . . . . 97
CAMP, J. W. Occurrence of the trematodes Uvulifer ambloplitis and Posthodiplostomum minimum in juvenile Lepomis macrochirus from northeastern Illinois . . . . . . . . . 100
PEARSON, J. C. and A. D. JOHNSON. The taxonomic status of Alaria marcianae (Trematoda: Diplostomidae) . . . . . . . . . . . . 102
CHING, H. L. and E. GROSHOLZ. Occurrence of a metacercaria (Trematoda: Gymnophallidae) in acmaeid gastropods, Lottia digitalis and "Collisella" scabra . . . . . . . . . . . . . 104
FEIGLEY, H. P. and D. E. WORLEY. Prevalence of larval Echinococcus multilocularis in native Montana small mammals and susceptibility of laboratory rodents to a Montana isolate . . . . . . . . . . 105
CLOUTMAN, D. G. Ancyrocephalids (Monogenea) of redbreast sunfish, bluegill, and their hybrids from Lake Norman, North Carolina: remards on monogeneans as indicators of parent species of hybrids . . . . . . . . 108
BEAVER, P. C. and M. M. WONG. Brugia sp. from a domestic cat in California . . . . . . . . . 111