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Proceedings of the Helminthological Society of Washington 52(1) 1985

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Proceedings of the Helminthological Society of Washington 52(1) 1985 Volumes? V f January 1985 Number 1 PROCEEDINGS ;• r ' •'• .\f The Helminthological Society --. ':''.,. --'. .x; .-- , •'','.• ••• •, ^ ' s\ * - .^ :~ s--\: •' } • ,' '•• ;UIoftI I ? V A semiannual journal of. research devoted to He/m/nfho/ogy and jail branches of Parasifo/ogy -- \_i - Suppprted in part by the vr / .'" BraytpnH. Ransom Memorial Trust Fund . - BROOKS, DANIEL R.,-RIGHARD T.O'GnADY, AND DAVID R. GLEN. The Phylogeny of < the Cercomeria Brooks, 1982 (Platyhelminthes) .:.........'.....^..i.....l. /..pi._.,.,.....:l^.r._l..^' IXDTZ,' JEFFREY M.,,AND JAMES R. .PALMIERI. Lecithodendriidae (Trematoda) from TaphozQUS melanopogon (Chiroptera) in Perlis, Malaysia , : .........i , LEMLY, A. DENNIS, AND GERALD W. ESCH. Black-spot Caused by Uvuliferambloplitis (Tfemato^a) Among JuVenileoCentrarchids.in the Piedmont Area of North S 'Carolina ....:..^...: „.. ......„..! ...; ,.........„...,......;. ;„... ._.^.... r EATON, ANNE PAULA, AND WJLLIAM F. FONT. Comparative "Seasonal Dynamics of ,'Alloglossidium macrdbdellensis (Digenea: Macroderoididae) in Wisconsin and HUEY/RICHARD. Proterogynotaenia texanum'sp. h. (Cestoidea: Progynotaeniidae) 7' from the Black-bellied Plover, Pluvialis squatarola ..;.. ...:....^..:..... £_ .HILDRETH, MICHAEL^ B.; AND RICHARD ;D. LUMSDEN. -Description of Otobothrium '-•I j«,tt£7z<? Plerocercus (Cestoda: Trypanorhyncha) and Its Incidence in Catfish from the Gulf Coast of Louisiana r A...:™.:.. J ......:.^., „..,..., ; , ; ...L....1 FRITZ, GA.RY N. A Consideration^of Alternative Intermediate Hosts for Mohiezia • , . expansa (Cestoda: Anoplocephalidae) : ;....:..,.....l. .1...... '..&. -^KjNGSTON.^N.yALBERT pRANZMANN; 'AND LEROY MAKi. r Redescription of Tryjpano- L soma cervi (Protozoa) in Moose, Alces alces, from Alaska and Wyoming ..I...;. UPTON, STEVE' X., DAVID S; LINDSAY, WILLIAM L., CURRENT, \AND_ JOHN ^". ' 'p-'ERNsr! isqspora?nasoni sp. h. (Apicomplexa: Eimeriidae) from the Cotton Rat, ? .Sigmodon hispidus .>........!_ 1.:.7. '. ;. ;.....: r ...:. .^...1..:.^.; :60 .v/r - -( , "~ " .(Coitiinued on Outside Back Cover) -••,,• v;'\ /, Copyright © 2011, The Helminthological Society of Washington r THE HELMINTHOLOGICAL SOCIETY OF WASHINGTON THE SOCIETY meets once a month from October through May for the presentation and discussion „._.' of papers in any and all branches of parasitology or related sciences. All interested persons are invited 4o attend. • //' ; , . •- ""~ . .: v..• ,"•"/''*> -.1 v Persons Interested in membership in the Helminthological Society of Washington may obtain ' application blanks in recent issues; of THE PROCEEDINGS. A year's subscription to the Proceedings -_ is included in the annual dues. ^President: WILLIS A. REID, JR.'; .-\~ • ., Vice President: RALPH P. ECKERLIN ,. «i Corresponding Secretary-Treasurer: MICHAEL D. RLTFF ,/• - , , Assistant Corresponding,Secretary-Treasurer: \. HUETTEL ... \, > ^RecordingSecretary: JEFFREY D. BIER '•• ?- 1 At * ^Archivist/Librarian: DAVID R. LINCICOME 'Custodian of Back Issues: ^GERHARD A. SCHAD /v-~,. ; Representative to the Washington Academy of Sciences: Vacant / , '; -, Representative to the American Society of/Parasitologists: K. DARWIN MURRELL. x 'Executive Committee Members-dt-Large: KENDALL G. POWERS, 1985 .,, "---/- : <;'A i" '^~ , llOYG. TAYLOR, 1985 :. ' v ./: '- T PETER^R. JACKSON, 1986 ^ ' 'r - '/-'.( , >, :> '•-.'.., --,.-^ PATRICIA.AIPILITT^ 1986 './ Immediate Past President: SHERMAN S. HENDRIX. /' t;/; THE PROCEEDINGS OFNXHE HELMINTHOLQGICAL SOCIETY OF WASHINGTON •','.• i.- • , . -.. - .' /.. ,' (' • , . ! • ,';, THE PROCEEDINGS are published semiannually at Lawrence, Kansas byitheiHelminthological Society of Washington. Papers need;not be presented at a meeting to be published^m the Proceedings. MANUSCRIPTS should be sent to the EDITOR, J. R. Lichtenfels, USDA>ARS, BARC-East No. 118Q,;Beltsville, MD-20705. ManuscVipts must be typewritten, double spaced, and in finished/orm. 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 Procee4ings. " , > i . , REPRINTS may be ordered from the PRINTER; at the same time-the corrected ;proof is returned 7 'to tKe EDITOR. - \ /' ? ! ,VBACK VOLLTMES of the:Proceedings 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,\Ine., 1041 New Hampshire St., Lawrence, Kansas 66044, U.S.A. <~- >'. .', -JJ\ .. , | V ~J., RALPH LICHTENFELS, Editor . -^': -~\ ( PATRICIA A. PILITT, Assisitarit Editor / -'. /• , \t -} •- • ' , ..- "s. i -_ ^ ^ —, . - -/", / ' •: ;f ' /' '/-•' L986 '\ . 0'_ ,-V \ 1987 ROY C. ANDERSON 7V DANIEL R. BROOKS . DWIGHT D. BOWMAN -I \RAYMOND M. CABLE JOHN L. CRITES v ; RALPH P. ECKERLIN ,' RONALD PAYER ,' V REINO S. FREEMAN fc ' WILLIAM RFQ^TT -A! MORGAN GOLDEN 0ILBERT F. OTTO ' < JOHN C HOLMES SHERMAN S. HENDRIX ROBIN M. OVERSTREET JOHN S. MACKJEWICZ 13ANNYB. PENCE ,:„: ! MARY H. PRITCHARD / BRENT B- NICKOL ; JOSEPH F. URBAN '-Vy | HARLEY G. SHEFFIELD YASSIiJQS THEODORIDES , • . - '"'' ' ' • ^ s "^ "' v/r. / VK, •• ' ~r:.--' • ,'•'- 'v"/ ..'' • ••'" ••.'->•'• '"A-1 ,' '. i ' -,--' '--• •' • >x- .'"^ '•-• '^••••v- ( ~-.'-~^^ ' '"'•• I" © The Helminthological Society1 of Washington 1985 vn -,'\\• .; A Copyright © 2011, The Helminthological Society of Washington Proc. Helminthol. Soc. Wash. 52(1), 1985, pp. 1-20 The Phylogeny of the Cercomeria Brooks, 1982 (Platyhelminthes) DANIEL R. BROOKS, RICHARD T. O'GRADY, AND DAVID R. GLEN Department of Zoology, University of British Columbia, 2075 Westbrook Mall, Vancouver, B.C. V6T 2A9, Canada ABSTRACT: A new classification of the parasitic platyhelminths is presented. It is derived by phylogenetic analysis of 39 morphological characters drawn from 19 putative homologous series. The construction and interpretation of phylogenetic trees using Hennigian phylogenetic systematics is discussed briefly to provide a reference point for the conclusions drawn. Parasitic platyhelminths having, at some time in ontogeny, a posterior adhesive organ formed by an expansion of the parenchyma into, minimally, an external pad, form the subphylum Cercomeria. Three superclasses are recognized within the Cercomeria: the Temnocephalidea, which is the most plesiomorphic of the three; the Udonellidea; and the Cercomeridea. Within the Cercomeridea, two classes are recognized: the Trematoda and the Cercomeromorphae. The Trematoda contains two subclasses, the Aspidocotylea and the Digenea, and the Cercomeromorphae contains the Monogenea, Gyrocotylidea, Amphilinidea, and Eucestoda. The Monogenea is the sister-group of the latter three, which together form the Cestodaria. The Gyrocotylidea is the sister group of the Amphilinidea and Eucestoda, which together form the Cestoidea. Several of the character complexes examined are discussed in detail, and all are listed. The number of hooks on the larval cercomer is concluded to be of little help in analyzing phylogenetic relationships among the cercomeromorphs. Other characters are more informative and provide additional support for the phylogeny proposed herein. These include the relative positions of the genital openings, and the structure of the anterior and posterior parts of the nervous system. New homologies are proposed for posterior adhesive organs and anterior body invaginations. The complex life cycles of digeneans and eucestodes are concluded to differ from each other in manner of origin. Eucestodes exhibit terminal addition of ontogenetic stages and nonterminal addition of an invertebrate host. Digeneans exhibit nonterminal addition of ontogenetic stages and terminal addition of a vertebrate host. Com- parison of the classification presented with eight previous classifications shows that it provides the best fit to the data considered. In the past 75 years there have been at least posed that parasitic platyhelminths possessing a eight proposals for the phylogenetic relationships posterior adhesive organ be included in a sub- and classification of the parasitic platyhelminths. phylum, the Cercomeria. This study extends and Two of the earliest, by Sinitsin (1911) and Fuhr- supports that hypothesis. mann (1928, 1931), postulated a dichotomy be- tween those with a gut and those without a gut. Materials and Methods The remaining six studies (Spengel, 1905; Jani- To provide a reference point for some of the con- cki, 1920; Bychowsky, 1937, 1957; Llewellyn, clusions we will draw, we present a precis of the theory 1965; Price, 1967;Malmberg, 1974) viewed those and methodology of Hennigian phylogenetic system- with a gut as either paraphyletic or polyphyletic. atics. See Wiley (198la) and Brooks et al. (1984) for a more complete discussion. This precis is followed by No general agreement has emerged. The present a list of the characters we analyzed, as well as a brief study is an application of Hennigian phyloge- discussion of diagnoses and keys. netic systematics (Hennig, 1950, 1966) to the Phylogenetic systematics problem. Organisms from different species may resemble each Previous attempts at phylogenetic analysis of other by possessing
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