MARTINEZ, S.A. and MAGGENTI, A.R. 1989. Cosmocerca panamaensis sp. n. (Nemata: Cosmocercidae) from the Panamanian Poison-arrow Frog, Dendrobates pumilio Schmidt, 1857, with a Discussion of Prodelphy, the Type Species and Family Authorship in Cosmocerca Diesing, 1861. Proc. Helm. Soc. Wash. 56(2):97-103.
RICKARD, L.G., HOBERG, E.P., BISHOP, J.K. and ZIMMERMAN, G.L. 1989. Epizootiology of Nematodirus battus, N. filicollis, and N. spathiger (Nematoda: Trichostrongyloidea) in Western Oregon. Proc. Helm. Soc. Wash. 56(2):104-115.
. 1989. Obituary Notice. Proc. Helm. Soc. Wash. 56(2):115-115.
BOAG, B. and KOLB, H.H. 1989. Influence of Host Age and Sex on Nematode Populations in the Wild Rabbit (Oryctolagus cuniculus L.). Proc. Helm. Soc. Wash. 56(2):116-119.
. 1989. Student Presentation Competition. Proc. Helm. Soc. Wash. 56(2):119-119.
POINAR, G.O., CHABAUD, A.G. and BAIN, O. 1989. Rabbium paradoxus sp. n. (Seuratidae: Skrjabinelaziinae) Maturing in Camponotus castaneus (Hymenoptera: Formicidae. Proc. Helm. Soc. Wash. 56(2):120-124.
. 1989. Meeting Schedule Helminthological Society of Washington 1989-1990. Proc. Helm. Soc. Wash. 56(2):124-124.
JARA, C.A. and CONE, D.K. 1989. Scleroductus yuncensi gen. et sp. n. (Monogenea) from Pimelodella yuncensis (Siluriformes: Pimelodidae) in Peru. Proc. Helm. Soc. Wash. 56(2):125-127.
KRITSKY, D.C., THATCHER, V.E. and BOEGER, W.A. 1989. Neotropical Monogenea. 15. Dactylogyrids from the Gills of Brazilian Cichlidae with Proposal of Sciadicleithrum gen. n. (Dactylogyridae). Proc. Helm. Soc. Wash. 56(2):128-140.
DUNAGAN, T.T. and RASHED, R.M.A. 1989. A Vaginal Ganglion in Female Echinopardalis atrata (Acanthocephala). Proc. Helm. Soc. Wash. 56(2):141-144.
HASEGAWA, H. 1989. Neoentomelas asatoi gen. et sp. n. (Nematoda: Rhabdiasidae) and Hedruris miyakoensis sp. n. (Nematoda: Hedruridae) from Skinks of the Ryukyu Archipelago, Japan. Proc. Helm. Soc. Wash. 56(2):145-150.
. 1989. The William C. Campbell Endowment Fund for Visiting Scientists at the Harold W. Manter Laboratory. Proc. Helm. Soc. Wash. 56(2):150-150.
MARCOGLIESE, D.J. and ESCH, G.W. 1989. Experimental and Natural Infection of Planktonic and Benthic Copepods by the Asian Tapeworm, Bothriocephalus acheilognathi. Proc. Helm. Soc. Wash. 56(2):151-155.
HOLMES, J.C. 1989. A Redescription of Simhatrema simhai Chattopadhyaya, 1970 (Trematoda: Exotidendriidae), with Comments on its Pathogenesis in Sea Snakes (Serpentes: Hydrophiidae). Proc. Helm. Soc. Wash. 56(2):156-161.
SHEFFIELD, H.G. 1989. Report of the Brayton H. Ransom Memorial Trust Fund. Proc. Helm. Soc. Wash. 56(2):161-161.
MCALLISTER, C.T., UPTON, S.J. and CONN, D.B. 1989. A Comparative Study of Endoparasites in Three Species of Sympatric Bufo (Anura: Bufonidae), from Texas. Proc. Helm. Soc. Wash. 56(2):162-167.
FRIED, B. and KIM, S. 1989. In Vitro Cultivation of Echinostoma revolutum (Trematoda) Metacercariae in an Extract of Chick Mucosal Epithelium. Proc. Helm. Soc. Wash. 56(2):168-172.
LICHTENFELS, J.R. and PILITT, P.A. 1989. Cuticular Ridge Patterns of Marshallagia marshalli and Ostertagia occidentalis (Nematoda: Trichostrongyloidea) Parasitic in Ruminants of North America. Proc. Helm. Soc. Wash. 56(2):173-182.
. 1989. Editor's Acknowledgement. Proc. Helm. Soc. Wash. 56(2):182-182.
KRECEK, R.C. 1989. Habronema malani sp. n. and Habronema tomasi sp. n. (Nematoda: Habronematidae) from the Burchell's Zebras and Hartmann's Mountain Zebras in Southern Africa. Proc. Helm. Soc. Wash. 56(2):183-191.
ODAIBO, A.B., CHRISTENSEN, N.Ų. and UKOLI, F.M.A. 1989. Further Studies on the Population Regulation in Echinostoma caproni Infections in NMRI Mice. Proc. Helm. Soc. Wash. 56(2):192-198.
ANDERSON, R.C. 1989. Research Note - The Development of Quadriplotriaena hypsokysta (Nematoda: Diplotriaenoidea) in Grasshoppers (Orthoptera). Proc. Helm. Soc. Wash. 56(2):199-201.
CANALS, A. and GASBARRE, L.C. 1989. Research Note - Procedure for the Recovery of Excretory-Secretory Products from Molting Fourth-stage Larvae of Ostertagia ostertagi. Proc. Helm. Soc. Wash. 56(2):201-203.
SEVILLE, R.S. and WILLIAMS, E.S. 1989. Research Note - Endoparasites of the White-tailed Prairie Dog, Cynomys leucurus, at Meeteetse, Park County, Wyoming. Proc. Helm. Soc. Wash. 56(2):204-206.
BLAGBURN, B.L., BRAUND, K.G., AMLING, K.A. and TOIVIO-KINNUCAN, M. 1989. Research Note - Muscular Sarcocystis in a Dog. Proc. Helm. Soc. Wash. 56(2):207-210.
PEARLSTEIN, K.T., POEHLMAN, M.A. and INSLER, G.D. 1989. Research Note - The Growth of Hymenolepis diminuta in Five Strains of Mice. Proc. Helm. Soc. Wash. 56(2):210-213.
JOY, J. 1989. Research Note - Lintaxine cokeri (Monogenea: Microcotylidae) on Freshwater Drum in the Kanawha River, West Virginia. Proc. Helm. Soc. Wash. 56(2):213-214.
. 1989. Presentation of the 1988 Anniversary Award to Milford N. Lunde. Proc. Helm. Soc. Wash. 56(2):215-216.
FRANCL, L. 1989. Minutes - Five Hundred Ninety-Seventh Through Six Hundred Fourth Meetings. Proc. Helm. Soc. Wash. 56(2):217-218.
. 1989. Author Index for Volume 56. Proc. Helm. Soc. Wash. 56(2):219-219.
. 1989. Key Word and Subject Index for Volume 56. Proc. Helm. Soc. Wash. 56(2):220-221.
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