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January 1996 v" \r 1 =-- . 'C , .''--' ,. -r "• : ' -•-''. ' JOURNAL of The Helmintholpgical Society of Washington; ; , A semiannual journal of research devoted to -.'' ^ Helminthology and all branches of Parasitology ^Supported in part by the Brayton H. Ransom Memorial Trust Fund , '-v CONTENTS v _ -E. J:\yETZEL AND G. W. ESCH- Influence of Odonate Intermediate Host Ecology on the'lnfection Dynamics of Halipegus spp., Haematoloechus loitgiplexus, and Hae- matoloechus complexus (Trematoda: Djgenea) ..___ .... .. ..::. _., 1 E THOMAS, T- DEMEECs, AND E RENAUD. Pattern of Infection of Gammarus aequi- cauda (Amphipoda) with Metacercariae of Levinseniella tridigitata (Trematoda: jMicrophallidae) L „..:.. '.'.. ...y. „'„._ . lv_. J_ — 8 D., J. MARCOGLIESE. Larval Parasitic Nematodes Infecting Marine Crustaceans in Eastern Canada. 3. Hysterothylacium aduncum .„_...__ _xli l...r. „._ - 12 --S. MORAND, E. S. INANOVA, AND-C. VAUCHER. Dicelis keymeri sp. n. (Nematoda:- Drilonematidae) from the Earthworm Octolasium pseudptranspadanum Zicsi, / 197r;(Oligochaeta: Lumbricidae) '. ..;.....„._£: ^.^:_^...,.^..........^ .... ;19 R. A. FioRibLO AND W. E FONT. ^Helminth Community Structure of Four Species of '•f Lepomis (Osteichthyes: Centrarchidae) from an Oligohalirie Estuary in South- eastern Louisiana . -_^_1 Li-« . 24 O. M. AMIN AND M. D. DAILEY. Redescription of Dollfiisentis iieteracanthus (Acan- / thocephala:; Illiosentidae) from Bonefish, Albula vulpes, in^^ the West Indies ... 31 D. C: KRITSKY, L. R. VAN;.EVERY, ANETW. A. BOEGER. Nedtropical Monogenoidea. 27. Two New Species of Telethecium gen. n. from the Nasal Cavities of Central ; ^Amazonian Fishes and a Redescription-of Kritskyia moraveci Kohn, 1990 (Dae- •' -~ tylogyridae, Ancyrbcephiilinae) J I. ..I.". 35 R. B. TUCKER AND J. E. JOY. Relationships Between Glypthehnins pennsylvaniensis .- (Trematoda: Digeiiea) Infections and Host Size '. _..... .___: :ll_... L;.. 42 PURNOMO AND M. J. BANGS. Icosiella'iiitani sp. n. (FHarioidea: Onchoeercidae), a Parasite of Ratio cancrivora from South Kalimantan, Indonesia .... , 47 C. R.-BURSEY AND S. R. GOLDBERG. Pharyngodon lepidodactylus sp. n. (Nematoda: ', Pharyngpdonidae) from the Mourning Gecko, Lepidodactylus lu-gubris (Lacertilia: : ,. Gekkonidae), from Hawaii;.. .II _„.... ..._ .^..... 1:_... 51 1 ' (Continued on Outside Back Cover) Copyright © 2011, 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 $20.00 domestic and $22.00 foreign. " _ \ OFFICERS OF THE SOCIETY FOR 1996 '' - . - .^- ' - _ , i President: SUSAN FPJCKE-MEYER ^ Vice President: ELLEN:ANDERSEN Corresponding Secretary-Treasurer. HARLEY G. SHEFFIELD Recording Secretary: W. PATRICK CARNEY Archivist/Librarian: PATRICIA A. PILITT Custodian of Back Issues: J. RALPH LICHTENFELS Representative to the American Society of Parasitologists: ERIC P. HOBERG Executive Committee Members-at-Large: FREDA. LEWIS,'1996 RONALD C. NEFIE, 1996 WILLIAM P. WERGIN, 1997 •--. WILLIS A. REID, JR., 1997 " Immediate Past President: JOAN E. JACKSON THE JOURNAL OF THE HELMINTHOLOGICAL SOCIETY 6F WASHINGTON THE JOURNAL is published semiannually at Lawrence, Kansas by th6 Helminthological Society of Washington. Papers need not be presented at a meeting to be published in the Journal. MANUSCRIPTS should be sent to the EDITOR, Sherman S. Hendrix, Department of Biology, Gettysburg College, Gettysburg, PA 17325. 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 manuscript. 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 $40/pg for members, $80, for non- members) will be billed by Allen Press and are,payable to the SOCIETY. 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. _'• -• v_ / -, - / ~ '—-' \ ' ' r"~ ^ ''- ' " -, '"~- •' . ' S EDITORIAL BOARD " =• ' -•.. SHERMAN S. HENDRIX, Editor m^ ~'~- '' , ,A 1996 1997 DWIGHT D. BOWMAN ROY C. ANDERSON DANIEL R. BROOKS RAYMOND H.FETTERER RALPH P., ECKERLIN ERIC P. HOBERG " WILLIAM F. FONT , , RONALD PAYER ROBIN M. OVERSTREET JQHN'C. HOLMES A. MORGAN GOLDEN : MARY H. PRITCHARD J. RALPH ^LICHTENFELS ROBIN N. HUETTEL ROBERT L. RAUSCH JOHN S. MACKIEWICZ FUADM. NAHHAS" HARLEY'G. SHEFFIELD BRENT B. NICKOL DANNY B. PENCE DENNIS A. THONEY VASSILIOS THEODORIDES JOSEPH F URBAN -STEVE J. UPTON The Helminthdlogical Society of Washington 1996 "- .:- ISSN 1049-233X "% This paper meets the requirements of ANSI/N1SOZ39.48-1992 (Permanence of Paper). Copyright © 2011, The Helminthological Society of Washington J. Helminthol. Soc. Wash. 63(1), 1996, pp. 1-7 Influence of Odonate Intermediate Host Ecology on the Infection Dynamics of Halipegus spp., Haematoloechm longiplexus, and Haematoloechus complexus (Trematoda: Digenea) ERIC J. WETZEL AND GERALD W. ESCH Department of Biology, Wake Forest University, P.O. Box 7325, Winston-Salem, North Carolina 27109 ABSTRACT: The prevalences and relative densities of Halipegus spp., Haematoloechus longiplexus, and Hae- matoloechus complexus metacercarial infections in anisopteran (dragonfly) and zygopteran (damselfly) odonate intermediate hosts were examined. These measures of infection were compared in relation to the ecological habits of the host species. Also, the extent of second intermediate host specificity was compared between the 2 species of Haematoloechus. Eighteen species (N = 934) of odonates were dissected and examined for metacer- cariae. Halipegus spp. generally had the highest prevalences and relative densities of infection when compared with Haematoloechus spp. in this system. Except for 1 host species, no significant differences in levels of infection were found between the 2 species of Haematoloechus in anisopterans. Haematoloechus longiplexus was a second intermediate host specialist, being found in anisopteran odonates only. In contrast, Haematoloechus complexus was a generalist and was found in both anisopteran and zygopteran hosts. Differences in infections among host species suggest that variations in odonate ecology are sufficient to influence the suitability of larval odonates to serve as intermediate hosts for these frog trematodes. KEY WORDS: Halipegus spp., Haematoloechus longiplexus, Haematoloechus complexus, odonate, host spec- ificity. Bush et al. (1993) argued for the increased con- ceans (the second intermediate host) (Thomas, sideration of invertebrate intermediate hosts 1939). Thomas concluded that metacercariae when investigating parasitic helminth commu- would then reside in the host's stomach until the nity dynamics. Traditionally, vertebrate defini- tadpole metamorphosed into an adult frog, at tive hosts have received most of the attention in which time the worm would migrate up the these analyses (Esch et al., 1990), although com- esophagus to the eustachian tubes, where it would munity studies of intramolluscan trematodes mature and live as an adult (Thomas, 1939). have received considerable attention recently However, unpublished field data from our lab- (Kuris, 1990;Sousa, 1990, 1993; Fernandez and oratory on the recruitment of this parasite into Esch, 199la; Williams and Esch, 1991; Snyder its definitive host (R. clamitans) suggest that H. and Esch, 1993; Esch and Fernandez, 1994; Laf- eccentricus metacercariae also can be found in ferty et al., 1994). Few studies have concentrated odonates, which presumably act as third inter- on parasites in invertebrate second or third in- mediate hosts. This would make the life cycle of termediate hosts, i.e., those that have a closer H. eccentricus similar to that of its congener, H. ecological association with the definitive host, occidualis. Thus, in habitats such as Charlie's because the parasites rely on predator-prey path- Pond, where both congeners could be present ways for transmission. within larval odonates, and because they are Halipegus occidualis Stafford, 1905, is a hem- morphologically indistinguishable, they are re- iurid trematode that uses odonate (Insecta: Odo- ferred to as Halipegus spp. for the purposes of nata; i.e., dragonfly and damselfly) naiads as third this study. intermediate hosts. Naiads infected with meta- Haematoloechus complexus Seely, 1906, and cercariae are ingested by the green frog, Rana H. longiplexus Stafford, 1902, are frog lung flukes clamitans, in
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  • Possible Aplanochytrid (Labyrinthulea) Prey Detected Using

    Possible Aplanochytrid (Labyrinthulea) Prey Detected Using

    Plankton Benthos Res 13(2): 75–82, 2018 Plankton & Benthos Research © The Plankton Society of Japan Possible aplanochytrid (Labyrinthulea) prey detected using 18S metagenetic diet analysis in the key copepod species Calanus sinicus in the coastal waters of the subtropical western North Pacific 1,†, 2,3 3,4 1 JUNYA HIRAI *, YOKO HAMAMOTO , DAISKE HONDA & KIYOTAKA HIDAKA 1 National Research Institute of Fisheries Science, Japan Fisheries Research and Education Agency, 2–12–4 Fukuura, Kanazawa, Yokohama, Kanagawa 236–8648, Japan, 2 Graduate School of Natural Science, Konan University, 8–9–1 Okamoto, Higashinada, Kobe, Hyogo 658–8501, Japan 3 Institute for Integrative Neurobiology Konan University, 8–9–1 Okamoto, Higashinada, Kobe, Hyogo 658–8501, Japan 4 Faculty of Science and Engineering, Konan University, 8–9–1 Okamoto, Higashinada, Kobe, Hyogo 658–8501, Japan † Present address: Atmosphere and Ocean Research Institute, The University of Tokyo, 5–1–5 Kashiwanoha, Kashiwa, Chiba, 277–8564, Japan Received 19 September 2017; Accepted 20 February 2018 Responsible Editor: Ryuji Machida Abstract: Metagenetic diet analyses of the 18S V9 region were conducted in 40 adult female Calanus sinicus dur- ing winter in Tosa Bay (Japan). The majority of prey items were small crustaceans (of Copepoda and Cirripedia) and diatoms, taxa that are dominant in the environment and have been previously reported as important prey items of Cala- nus. The abundance of sequences attributable to Dinophyta and Chlorophyta was significantly lower in C. sinicus gut contents than in environmental plankton communities, suggesting that C. sinicus avoids prey from these groups. Hy- drozoans were also observed, and aplanochytrids (Labyrinthulea) were detected for the first time as a major prey of C.