The Helminthological Society of Washington

The Helminthological Society of Washington

-,\ ~ '•'<•," t' :rt ff, • "\ •''.-' V-". • •- " ~ ' •'; '; ",-." "•""" •","~"^T-*^7'~* •.——'.-•{—- — / : '•-"-' •- :''' ''--sw Volume 33 July 1966 Number 2 VVl ff-;^f *v® ;f •:); i- /':••'; ^;-v'V v.: ,-.-'., ! '-':" '^:V .~N • PROCEEDINGS •iC '':"Vof:S->S: •/.y.-vA'-i The Helminthological Society of Washington A semiannual journal of research devoted to Helminthology and all branches of Parasitology |lrciyton H.JRansoro Memorial Trust Fund* CONTENTS AGRAWAL, VINOD. ! On a New Nematode, Procamattanus muetteri n. isp. from the Stomach of a Freshwater Fish, rHetMOfmeu&es JofsUis ..-—^-.-:,;.... -.__- '204 - BARKER, K. JR. CJeUulytic and Pectolytic Enzymes in the Nematode, Aphden- ' avenae - • -'. \ -'••'. ••;••'.•. ( \..•....•• • •...;•/:'.- -.•' .____^________ '• 134,' '' ''' ' ' "' ]BKX3^Tjiro/WlLiiABD W.VSuppression of Nenutjodirus ntfaevastUatis Durbin ^ ;i and Honess, 1951, a Nematode Described from Otjis ortes, as & Synonym : ' 1 'of Nematoairus davtiani Grigorian, 1949 1,1 -;' ;-.. -., ':'/:... ['' ••••:".. •;. •-.-.•' .-• M99 Emtoett William Price, 1896-1965 __ J_ 213 ;\f-//~ •^"' :•'. Copyright © 2011, The Helminthological Society of Washington ,'i .. * ' v.i •/'./•• i • •. v ... .\. iv A-. .,"--. V" ,;•'• .•>.,.•', ,/••.• ¥•&£-.•••'•• ••••.'''.• < & ,0^;^-: ;^-:: > • r.%vW'.- v;'" •• -v ' -; •."••'•' ,v" ''-'.'••/'. '''- : - '-' >• •: ' •' ' ' > ' ' THE HELMINTHOLOGICAL SOCIETY OF WASHINGTON V •'•'',' !', '-'.'• i '.>."•• •" '. '•' -'^ V-. " : -% •- •' t '.•,': • N; -- * " f''. - r ' v \ ( • •.'•',''•' ' '' -" THE SOCIETY me^ts once a month from October ihrough May for &e presentation and discussion of papers in any\and all branches of parasitolbgy;or related sciences. All • -interested -persons are invited to attend. : V "" * "*'"? '-:y \ /|: .'.i\\;i?'^ ''. ;'\-''.';"'^^f-'s;1^/'^' ~ ; The annual dues, including the Proceedings', are $6.00.: ! ,.,' ^ (A;x ; ' '- ^-L, , v^^ [^ !^Sv;;; -I,^ c|; ^^^l^^^^^ ^•x^^^y^'^V^.V^'^rv./OFRCERS^QF SHE SOCIETY^FOR J^^}:->^:^^^:C " President: DONALD BrMcMULLEN" T (/^ r/;'.: 'v.;?' • /,_';;• ^l \": ''^"^ , Vfce President: MAY BELLE CHITWOQD ' '.'v'"•;•: .-••;":/\\ «\' i;-\' ^,'^., - ;'' 'V-^', Corresponding Secretary-Treasurer: EDNAM. BUHRER -, , ;,- V Assirton* Coiresponding^Secretary-Treasurer: HALSEY H. VEGORS X r, V Recording Secwftny:' WMJAM'B.vDEVWl^ \ \ i>; ; v v L&rorkm: JUDITH M. HUMPHREY (196^ v) "Y \' ! \^ ^ vi ; A^ioist; DOYS?:A. SHORE (1986- j '"' "';-:,;-;,\' ,.,l:,/v,,. ^}'.^>-f;'".;|^ r'|j.i-: v-" Representative to the Washington Academy of Sciences: AUREL O. FOSTER (1965r-;\ Representative to^the American Society of Parasitologists: CHARLES G.DURBIN (19654 ) Executive Qommittee Members^at-ljarge: LpUIS DIAMt)ND, '„ 1966 j PROCEEDINGS OF THE HELMINTHOLOGICAL SOCIETY OF WASHINGTON \ \f THE PROCEEDINGS tore piibMied byj the HehTu^tbologjcal Society of Washington. V. ''7; However, .papers need not be Resented' at a meeting ,to| be published in ,tihie Proceedings. f Noh-'membejrs may, pubKsh in the Proceedings ?if they will ecintribute the /full icost of publication. ; ;, ''; ','• Two issues 'fire pubHshed leach year fin January \and July. ,' ,: : ,^ ?'\S may be submitted to oany iown^ber of the Editorial Committee. Manu- : /f scripts must be typewnten, double spaced, and,;in finished form. 'Only the ribbon copy* 1 ,< 'will be accepted for publication; it;is accepted with the xuijqerstanding,;that it will be •>':' ;'v ^pnblished only in the Proeeedings^ >: -',/•. ^/- \. •.< -> '^i . ..')'•;;. ..\^-,<--' ,''•. '••••-••• -,'_'.\ , v REPRINTS may t>^ ofdered from fthe PRIN^IER at the same time the conected proof :' :(\ is returned to'the EDITOR. ' - 'I $ , ;, ; . • J:{ s /- ^j'Jj^ <'"Y'('\"7'", - .•''-'-•''.. - • ';,> .• i f ,/ 'BACK VOIjUMES of tihe ••Proceedings are available. Inquiries concerning '.back volumes \ ; and current subscriptions should be^^ directed to: \: .,--../''• ? ,!/;, < ' ^; c -.-r jMiss Edna M. Bulirer, Gorcespcmdm^ ;N / VS Laboratory, Agricultufal ~ Researchi Center, •••p.S,DA.^;'^tsyil]l'e,;-Marylandi 'tI.'S•:A.• H:••?^''^^^^f-fi'J^'-- -/'v^Ni- '^'fv/';/:.v:'';v-'\ S s 1';::'.;''^':;' >^r-'A-';;^v"^v'' ^4$^^^vte^?;^ :^|^^'^':'S'-^r? V.vv'^r,'.'' v i (FRANCIS G,'TROMBA, Editor,'a^TO^f'v , ' • ' . ' Beltsville Parasitplogical; Laboratory ' "V-T? ,,; ^ '••'.'-'^',':,'•• Agricultural Research!(Genter r ' V. /i-'i :.'\'V\^:'r;^:;'.;-.!>:" .BeltsviUe,'Ma^yJan^,;/U.S.A!:'/;''V' ;/ ,;1;-';; ;:,,.;. .. ^GILBERTiF. OTTO, 1969 . ;\'(r"':, ;'y'C;,''< >'A. JAMES HALEY,11967 V> 'Abbott Laboratories '; \V /,:i^X ', •School of Medicine North Chicago,, Il^ois i v_ -. >; ^ ^ ' \y of Maryiarid^ . Agricultural Experiment Station V ,;;! '- ,J;,;i \Beltsville Parasitological Laboratory ".' University of Califbrnia I I •.:••.: -0':0 \. '' '••; ' ;;,- ' , U.S.D.A. .' • -v't; JK - R. CHRISTIE, 1968 ---;' 'i'1;- -' .vExperiment Station \ / '- Institute of Allergy aridi Infectious Diseases University -of FJorida; :; J r;',;.. ;'.-.!. ;;•, ' ' ' ^ ' ' ' ' '' ' ' ' ' 1 /','. : Copyright © 2011, The Helminthological Society of Washington Proceedings of the Helminthological Society of Washington VOLUME 33 JULY 1966 NUMBER 2 A Compendium of the Genus Criconemoides (Criconematidae: Nemata)1 A. C. TAR JAN- SUMMARY primary differentiating characters. Range of A key and pertinent morphological data body length, vulva percentage, tail and tail derived from the original publications are pre- terminus shape, ratio of the stylet divided by sented on 89 nominal species of Criconemoides. the body length, and the ratio of vulva- Criconemoides anura, C. demani, C. heideri, terminus length divided by the width of the C. hispalensis, C. hygrophilum, C. peruense, body at the vulva were regarded as secondary C. riisticum, and C. simile are transferred to characters. The Demanian ratios a, b, and c species inquirendae. were not considered as usable diagnostic char- acters. When possible, other important data INTRODUCTION such as presence of sublateral lobes or unusual labial annules were used in constructing the Criconemoides contains more described spe- key. cies than any other genus of plant-parasitic nematodes. Yet, despite its taxonomic popular- DISCUSSION OF RECENT PROPOSED CHANGES ity it is one of the most difficxilt genera in which to work. Numerous authors have pro- The classification of de Grisse and posed species which are supposedly distinctive Loof(1965) mainly by certain morphological characteris- These workers have recently divided Cri- tics lacking for closely related species. In conemoides into six genera, based primarily on certain cases, morphological variability has not presence or absence of sublateral lobes, female been considered. Neither has the possibility labium shape, stylet length, body length, and of the existence of artifacts due to fixation and annule shape. They resurrected Macropos- preservation when only one or a few specimens thonia de Man, 1880 and placed 39 species are at hand on which to base the species. in the genus on the basis of their finding Differences in interpretation of characters, males of M. annulata de Man, 1880 in Belgium, separation on dubious or indistinct morpho- Germany, and Bergen op Zoom, The Nether- logical structures, unfamiliarity with the nom- lands, associated with females of C. kirianovae inal species, and inaccurate measurements have Andrassy, 1962. The criteria which they felt very probably contributed to the mass of spe- were important in deciding that their males cies currently in the genus. It is felt that bio- were M. annulata were narrow head, ventrally metrical data must be relied upon as a sensible bent pointed tail, and various measurements. approach to species separation and that taxon- However, a comparison of their drawings with omy of such a large genus must be on an ob- that of de Man's shows their specimens to have jective rather than subjective basis. a broader anterior region, while the measure- In the present study, number and ornamen- ments of their three populations show differ- tation of body annules, length of stylet, and ences from those of de Man's in body length, number of annules between the vulva and the number of annules to excretory pore, and num- tail terminus, on the tail, and between the ber of tail annules. Then, too, the only popula- labial disc and excretory pore were considered tion they collected in The Netherlands was about 75 km from the type locality of Leiden, 1 University of Florida Citrus Experiment Station, Lake Alfred, Florida. Florida Agricultural Experiment Stations and about 30 km from Breda where de Man Journal Series No. 2286. The assistance of R. L. Ward, who aided in the compilation of data, is appreciated. (1921) reported the species as occurring a 109 Copyright © 2011, The Helminthological Society of Washington 110 PROCEEDINGS OF THE [VOL. 33, No. 2 second time. There have been about 11 spe- uously or strongly crenate, yet these species cies of Criconemoides reported from the area are placed in a genus that is only supposed to occupied by The Netherlands and Belgium; have slight, fine ornamentation on the posterior this raises the question whether the males and edge of annules; and that C. irregulare de females found in the population belonged to Grisse, 1964 has body annules with irregular the same species. margins (No. 32, in their key) but placed the De Grisse and Loof have suggested a modi- species in a group having smooth posterior fication of the accepted concept of Criconema margin of annules (No. 12, in their key). in. that they propose species having "females Their

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