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DEARDORFF, T.L. and OVERSTREET, R.M. 1981. Larval Hysterothylacium (=Thynnascaris) (Nematoda: Anisakidae) from Fishes and Invertebrates in the Gulf of Mexico. Proc. Helm. Soc. Wash. 48(2):113-126.
MCCALLISTER, G. and SCHMIDT, G.D. 1981. Diurnal Migration of the Female of Thelastoma bulhoesi (Oxyurata: Thelastomida) in the American Cockroach, Periplaneta americana. Proc. Helm. Soc. Wash. 48(2):127-129.
TIEKOTTER, K.L. 1981. Observations of the Head and Tail Regions of Male Physaloptera praeputialis von Linstow, 1889, and Physaloptera rara Hall and Wigdor, 1918, Using Scanning Electron Microscopy. Proc. Helm. Soc. Wash. 48(2):130-136.
LICHTENFELS, J.R. and STEWART, T.B. 1981. Three New Species of Chapiniella Yamaguti, 1961 (Nematoda: Strongyloidea) from Tortoises. Proc. Helm. Soc. Wash. 48(2):137-147.
PLATT, T.R. and PENCE, D.B. 1981. Molineus samneli n. sp. (Nematoda: Trichostrongyloidea: Molineidae) from the Badger, Taxidea taxus. Proc. Helm. Soc. Wash. 48(2):148-153.
WEBSTER, W.A. 1981. Andersonstrongylus milksi (Whitlock, 1956) n. comb. (Metastrongyloidea: Angiostrongylidae) with a Discussion of Related Species in North American Canids and Mustelids. Proc. Helm. Soc. Wash. 48(2):154-158.
. 1981. Special Sale of Back Issues. Proc. Helm. Soc. Wash. 48(2):158-158.
BAKER, M.R. 1981. Redescription of Pneumonema tiliquae Johnston, 1916 (Nematoda: Rhabdiasidae) from an Australian Skink. Proc. Helm. Soc. Wash. 48(2):159-162.
. 1981. Editor's Acknowledgement. Proc. Helm. Soc. Wash. 48(2):162-162.
FERRIS, V.R., FERRIS, J.M. and GOSECO, C.G. 1981. Phylogenetic and Biogeographic Hypotheses in Leptonchidae (Nematoda: Dorylaimida) and a New Classification. Proc. Helm. Soc. Wash. 48(2):163-171.
WATSON, T.G. 1981. Evaluation of Actual and Relative Measurements Used in the Description of Metorchis conjunctus (Cobbold, 1860) Looss, 1899 (Trematoda: Opisthorchiidae). Proc. Helm. Soc. Wash. 48(2):172-176.
DURU, C., JOHNSON, A.D. and BLOUIN, E. 1981. Neascus pyriformis Chandler, 1951 (Trematoda: Diplostomatidae), Redescription and Incidence in Fishes from Brule Creek, South Dakota. Proc. Helm. Soc. Wash. 48(2):177-183.
. 1981. Erratum. Proc. Helm. Soc. Wash. 48(2):183-183.
SCHROEDER, D.J., JOHNSON, A.D. and MOHAMMAD, K.H. 1981. In Vitro Excystment of the Black Spot Trematode Neascus pyriformis Chandler, 1951 (Trematoda: Diplostomatidae). Proc. Helm. Soc. Wash. 48(2):184-189.
HOBERG, E. 1981. Pseudogymnophallus alcae gen. n. et sp. n. (Trematoda: Gymnophallidae) from Alcids (Charadriiformes) in Subarctic Seas. Proc. Helm. Soc. Wash. 48(2):190-194.
KRUSE, G.O.W. 1981. Trematodes of Marine Fishes from South Australia. 3. Lepocreadium angelae sp. n. (Lepocreadiidae). Proc. Helm. Soc. Wash. 48(2):195-197.
CATALANO, P.A. and ETGES, F.J. 1981. Plagioporus gyrinophili sp. n. (Trematoda: Opecoelidae) from Gyrinophilus porphyriticus duryi and Pseudotriton ruber (Caudata: Plethodontidae). Proc. Helm. Soc. Wash. 48(2):198-201.
CAMISHION, G.M., BACHA, W.J. and STEMPEN, H. 1981. The Circumoval Precipitate and Cercarienhüllen Reaktion of Austrobilharzia variglandis. Proc. Helm. Soc. Wash. 48(2):202-208.
. 1981. Survey or Taxonomic Papers. Proc. Helm. Soc. Wash. 48(2):208-208.
HUFFMAN, J.E. and PENNER, L.R. 1981. Helminths from the Short-tail Shrew, Blarina brevicauda, in Connecticut with Reference to the Histopathology of Capillaria. Proc. Helm. Soc. Wash. 48(2):209-213.
MADDEN, P.A. and WITLOCK, D.R. 1981. Surface infrastructure of Eimeria tenella, E. dispersa, and E. meleagrimitis Motile Forms. Proc. Helm. Soc. Wash. 48(2):214-219.
ESSER, R.P. 1981. Verutus volvingentis n. gen., n. sp. (Heteroderidae: Tylenchida) in Verutinae n. subf., a Phytoparasitic Nematode Infesting Buttonweed in Florida. Proc. Helm. Soc. Wash. 48(2):220-240.
. 1981. Call for Papers. Proc. Helm. Soc. Wash. 48(2):240-240.
URBAN, J.F., DOUVRES, F.W. and TROMBA, F.G. 1981. Research Note - A Rapid Method for Hatching Ascaris suum Eggs In Vitro. Proc. Helm. Soc. Wash. 48(2):241-243.
FRIED, B. and WILSON, B.D. 1981. Research Note - Intraspecific and Interspecific Pairing of Echinostoma revolutum (Trematoda) and Zygocotyle lunata (Trematoda) Adults In Vitro. Proc. Helm. Soc. Wash. 48(2):243-245.
TAFT, S.J. 1981. Research Note - Prevalence of Tanaisia zarudnyi (Trematoda: Eucotylidae) from Ruffed Grouse (Bonasa umbellus) in Two Wisconsin Counties. Proc. Helm. Soc. Wash. 48(2):245-246.
BHUSHAN, C. and TEWARI, H.C. 1981. Research Note - The Influence of Immunosuppressants and Antagonists of Biogenic Amines on the Development of Ancylostoma caninum in Mice. Proc. Helm. Soc. Wash. 48(2):246-248.
KNIGHT, R.A. and REW, R.S. 1981. Research Note - Inactivity of Phenacetin as a Fasciolicide in Sheep. Proc. Helm. Soc. Wash. 48(2):248-250.
FRIED, B. and WILSON, B.D. 1981. Research Note - Pheromonal Response of Echinostoma revolutum in the Absence of Worm-Tactile Behavior. Proc. Helm. Soc. Wash. 48(2):251-253.
WILLIAMS, D.D. and SUTHERLAND, D.R. 1981. Research Note - Khawia sinensis (Caryophyllidea: Lytocestidae) from Cyprinus carpio in North America. Proc. Helm. Soc. Wash. 48(2):253-255.
KRUSE, G.O.W. and PRITCHARD, M.H. 1981. Research Note - Simple and Inexpensive Computer Cataloging for Parasite Collections Using SAS. Proc. Helm. Soc. Wash. 48(2):256-260.
SHEFFIELD, H.G. 1981. Report of the Brayton H. Ransom Memorial Trust Fund. Proc. Helm. Soc. Wash. 48(2):261-261.
LUNDE, M. 1981. Minutes - Five Hundred Thirty-third through Five Hundred Fortieth Meetings. Proc. Helm. Soc. Wash. 48(2):262-264.
. 1981. Index to Volume 48. Proc. Helm. Soc. Wash. 48(2):265-269.
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