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Journal of the Helminthological Society of Washington 66(1) 1999

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Journal of the Helminthological Society of Washington 66(1) 1999 Volume 66 January 1999 Number 1 JOURNAL of The Helminthological Society of Washington , -/- ^Supported in part by the . ^"'" -\ Brayton H. Ransom Memorial Trust Fund CONTENTS > KINSELLA, 3. M. AND D. J. FORRESTER. Parasitic Helminths of the Common Loon, Gavia immer, on Its' Wintering Grounds in Florida , . 1_ SEPULVEDA, M. -S., M. G. -SPAEDING, J. -M. KINSELLA, "AND D.-J. FORRESTER. Parasites of the Great Egret/(Ardea albux) in Florida and: a Review df the Helminths Re- ported 'for the Species \ ^__ -„.^..^ .„_., ...„ CEZAR, A. D. AND J. L. LUQUE. Metazoan Parasites of the Atlantic Spadefish C/iae- todipterus faber (Teleostei: Ephippidae) from the Coastal Zone'of the State of Rio J. de Janeiro, Brazil j •. ^ . „• ; 14 DRONEN, N- O., M. R. TEHRANY, AND W. J. WARDLE. Diplostomes from the Brown Pelican, Pelicarius accidentalis (Pelecanidae) from the Galveston, Texas Area, Including Two New Species of Bitrsacetabulus gen. n. ; L . ^_ 21 GHING, H. L. AND R. MADHAVI. Lobatocystis euthyi^ni sp. n. (Digenea: Didymo- zoidae) from Mackerel Tuna -(fiuthynnus affinis) from Sulawesi Island, Indo- jlnesia '_ : ___.i_x_: - ^:~ \— ..;. ; „„ 25 MATSUO, K., S. GANZORIG, Y. OKU, AND M. KAMIYA. Nematodes of the Indian Star Tortoise, 'Geochelone •. elegans (Testudinidae) with Description of a New Species Alaeuris geochelone sp. n. (Oxyuridae: Pharyngodonidae) —.—. .__ SMALES, L. R. AND P R/ Rossi. /Inglechina virginiae sp. n. '(Nematoda: Seuratidae) from Sminthopsis virginiae (Marsupialia: Dasyuridae) from Northern Australia •-33 BURSEY, C. R. AND S. R. GoiiDBERG. Pharyngodon vceanicus sp. n. (Nematoda: Pharyngodonidae) from the .Oceanic Gecko, Gehyra oceanica (Sauria: Gekkoni- dae) on the Pacific Islands . ._ .1 .„..__ i __.^ 37 KOGA, M.,H. AKAHANE, K. OGATA, R. LAMOTHE-ARGUMEDO, D. OSORIO-SARABIA, AND L. GARCIA-PRIETO, ANDNJ. M. MARTINEZ-CRUZ. Adult Gnathostoma cf. binuclea- tum Obtained from Dogs Experimentally Infected with Larvae as an Etiological Agent in Mexican Gnathostomiasis: External Morphology „„ '~ N ((Continued on Outside Back-Cover) . /" Copyright © 2011, The Helminthological Society of Washington THE HELMINTHOLOGICAL SOCIETY OF WASHINGTON THE SOCIETY meets in October, November, February, April and May for the presentation and discussion of papers in any and all branches of parasitology or related sciences. All interested persons are invited to attend. ; _. , — Persons interested in membership in the Helminthological Society of Washington may obtain ap- plication blanks in recent issues of THE JOURNAL. A year's subscription to the Journal is included in the annual dues of $25:00 domestic and $28.00 foreign. Institutional subscriptions are $50.00 per year. Applications for membership, accompanied by payments, may be sent to the Corresponding Secretary-Treasurer, Nancy D. Pacheco, 9708 DePaul Drive, Bethesda, MD 20817, U.S.A. The HelmSoc internet home page is located at http://www.gettysburg.edu/~shendrix/helmsoc.html President: ERIC P. HOBERG Vice President: RONALD NEAFIE Corresponding Secretary-Treasurer: NANCY D. PACHECO Recording Secretary: W. PATRICK CARNEY Archivist/Librarian: PATRICIA A. PILOT Custodian of Back Issues: J. RALPH LICHTENFELS Representative to the American Society of Parasitologists: ERIC P. HOBERG Executive Committee Members-at-Large: LYNN K. CARTA, 1999 MARK C. JENKINS, 1999 WILLIAM E. MOSER, 2000 _ - , [ DENNIS J. RICHARDSON, 2000 Immediate Past President: ELLEN ANDERSEN ( THE JOURNAL is ;published semiannually ,at Lawrence, Kansas by the Helminthological Society of Washington. Papers need not be presented at a meeting to be published in the Journal. ~" MANUSCRIPTS should be sent to the EDITORS, Drs. Willis A. Reid, Jr., and Janet W. Reid, 6210. Hollihs Drive, Bethesda, MD 20817. email: [email protected]. Manuscripts must be typewritten, double spaced, and in finished form. Consult recent issues of .the Journal for format and style. The original and two copies;are required. Photocopies of drawings may be submitted for review purposes but; glossy prints of halftones are required; originals will be requested after acceptance of the manu- script. Papers are accepted with the understanding that they will be published only in the Journal. REPRINTS may be ordered from the PRINTER at the same time the corrected proof is returned to the EDITOR. , AUTHORS' CONTRIBUTIONS to publication costs (currently $50/pg for members, $100 for non- members) will be billed by Allen Press and are payable to the\SQCIETY. -BACK VOLUMES of the Journal are available. Inquiries concerning back volumes and current subscriptions should be directed to the business office. BUSINESS OFFICE: The Society's business office is at Lawrence, Kansas. All inquiries concerning subscriptions/or back issues and all payments for dues, subscriptions, and back issues should be addressed to: Helminthological Society of Washington, % Allen Press,~Inc., 1041 New Hampshire St., Lawrence, Kansas 66044, U.S.A. WILLIS A. REID, JR. & JANET W. REID, Editors 1999 2000 JOHN M. AHO ROY C. ANDERSON '\T D. BOWMAN RALPH P. ECKERLIN WILLIAM F FONT RONALD PAYER , JOHN C. HOLMES ./ A. MORGAN GOLDEN ; ( , J-RALPH LICHTENFELS ROBIN N. HUETTEL JOHN S. MACKIEWICZ FUAD M. NAHHAS BRENT B, NICKOL DANNY B. PENCE VASSiLIOS THEODORIDES - JOSEPH E URBAN ©-The Helminthological Society of Washington 1999 ISSN 1049-23 3X © This paper meets the requirements of ANSI/NISO Z39.48-1992 (Permanence of Paper). Copyright © 2011, The Helminthological Society of Washington J. Helminthol. Soc. Wash. 66(1), 1999 pp. 1-6 Parasitic Helminths of the Common Loon, Gavia immer, on Its Wintering Grounds in Florida J. M. KlNSELLA1 AND DONALD J. FORRESTER Department of Pathobiology, College of Veterinary Medicine, University of Florida, Gainesville, Florida 32611-0880 (e-mail: [email protected]) ABSTRACT: Forty-eight species of helminths (31 trematodes, 5 cestodes, 11 nematodes, and 1 acanthocephalan) were collected from 104 sick or dead common loons collected on Florida beaches between 1971 and 1993. Twenty-three "normal" loons collected in 1984 were infected with 23 species of helminths (13 trematodes, 4 cestodes, 3 nematodes, and 3 acanthocephalans). Two trematodes (Microphallus forresteri, Amphimerus arcticus) and 3 cestodes (Neovalipora parvispinae, Armadoskrjabini rostellata, Tetrabothrius macrocephalus) were con- sidered common species (>20% prevalence) in both host populations. Of the species shared by the 2 host groups, 1 cestode (N. parvispinae) and 1 nematode (Streptocara crassicauda longispiculatus) had significantly higher prevalences and 2 trematodes (Renicola pollaris and M. forresteri) and 2 cestodes (A. rostellata and Microsomacanthus pseudorostellatus) had significantly higher intensities in the sick loons. The greater species richness in the sick loons and higher numbers of microphallid trematodes are thought to indicate a shift in the loons' diet due to low fish populations. KEY WORDS: helminths, common loon, parasites, Gavia immer, Florida. Common loons, Gavia immer (Briinnich), examined 5 species of microphallid trematodes breed as isolated pairs on freshwater lakes in the from this same sample and described 1 species northern United States and Canada and over- as new, Microphallus forresteri. winter in large numbers in the Gulf and Atlantic Herein, we describe the helminth populations coastal waters of northern Florida (Stevenson of common loons found sick or dead over a 23- and Anderson, 1994). Each winter, dead loons yr period in Florida and a smaller sample of are found on both Atlantic and Gulf beaches of "normal" loons collected in the nonepizootic Florida, occasionally reaching epizootic levels year of 1984. (Forrester et al., 1997). In one such epizootic episode, which occurred from January to March Materials and Methods 1983, more than 13,000 loons were estimated to A total of 104 dead or moribund common loons have died. (hereinafter referred to as sick loons) found on Florida The literature on helminths of common loons beaches were submitted to the Department of Patho- consists primarily of scattered taxonomic de- biology, University of Florida, Gainesville, between scriptions (e.g., trematodes: Guberlet, 1922; Lin- 1971 and 1993. Diagnostic findings on some of these loons have been presented elsewhere (White et al., ton, 1928; Gower, 1939; Dubois and Rausch, 1976; Franson and Cliplef, 1993; Forrester et al., 1967; Kinsella and Deblock, 1997; cestodes: 1997). Carcasses came from the following general ar- Linton, 1927; Joyeux and Baer, 1941, 1950; eas in Florida: the Atlantic Coast (n = 64), the Gulf nematodes: Gibson, 1968; Anderson and Forres- Coast (n = 36), inland lakes (Alachua, Broward, and Clay counties) (n = 3), and an unknown locality (n = ter, 1974). Chafel and Pokras ( 1992 ) examined 1). An additional 23 normal loons were collected by a small sample of immature and adult common shooting in the vicinity of Dog Island off the coast of loons for helminths on their breeding grounds in Franklin County in 1984 and were used for compara- New England. Forrester et al. (1997) described tive purposes. Normal loons were defined as healthy in general terms the helminth fauna of overwin- birds with ample amounts of body fat and robust pec- toral muscles, weighing >2.8 kg. tering common loons in Florida, listing com- The 23 normal loons were examined shortly after bined intensities and abundances of intestinal death; the remainder were frozen and processed later. trematodes but not identifying helminths to spe- Techniques for the necropsy of birds and for the
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