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Journal of Parasitic Diseases: June 2006, Vol. 30, No. 1, 89–91Short communicationJ P DRe-redescription of Dissurus farrukhabadi Verma, 1936(Digenea - Echinostomatidae) with a discussion of thegenus Dissurus Verma, 1936P. C. Gupta and R. B. SinghDepartment of Zoology, D. A. V. College, Kanpur.ABSTRACT. Dissurus farrukhabadi Verma, 1936 from the large intestine of a White-neckedstork, Dissurus episcopus (Boddaert) from Unnao, India is re-redescribed. <strong>The</strong> validity of thespecies of Dissurus, Verma, 1936 is discussed. D. xenorhynchi Wahid, 1962 is considered asynonym of Stephonoprora gigantica Gupta, 1962 and Psilocollaris guptai Gupta and Saxena,1986 is considered a synonym of D. farrukhabadi.During the survey of digenetic termatode parasites of 0.58 long. Intestinal caeca simple, extending to hindbirds, nine specimens of Dissurus farrukhabadi end of body. Ventral sucker sub-spherical, much largerVerma, 1936 were collected and described.than oral sucker, 0.40-0.46 x 0.43-0.50 at 0.87-1.14<strong>The</strong> trematodes were fixed in 70% alcohol under slightfrom anterior extremity.cover glass pressure <strong>for</strong> 24 h, stained with acetic alum Excretory bladder Y-shapped; arms bifurcation justcarmine, dehydrated in graded series of alcohols, behind posterior testis and their extension beyondcleared in clove oil and mounted in Canada balsam. anterior testis not traceable due to vitallariaum<strong>The</strong> drawings were made with the aid of a camera follicles, excretory pore subterminal.lucida, and unless otherwise stated, all measurementsare in mm.Testes oval, entire or notched, subequal, tandem,apart, in last fifth of body. Anterior testis 0.30-0.55 xDESCRIPTION0.23-0.28 at 3.61-4.30 from anterior extremity.Dissurus farrukhabadi Verma, 1936Posterior testis, 0.47-0.60 x 0.31-0.32 at 0.48-0.52from posterior extremity. Vasa efferentia arising fromBody long, slender, delicate, spinose, 5.34-5.71 xtestis, join together to <strong>for</strong>m vas deferens, running0.57-0.69, with rounded extremities. Head collaranteriorly to <strong>for</strong>m vesicula seminalis. Cirrus sac small,reni<strong>for</strong>m, 0.30-0.34 x 0.41-0.45; with 24 spines,heart shaped, 0.21-0.27 x 0.14-0.17, extendinginterrupted dorsally, arranged in a single row with noposteriorly either upto anterior margin of ventralend group. Oral sucker terminal, avoid 0.10-0.12 xsucker or overlapping anterior third of it. Vesicula0.08-0.09. Prepharynx 0.06-0.09 long. Pharynxseminalis bipartiate, 0.12-0.15 x 0.09-0.16. Parssubglobular0.11-0.13 x 0.09-0.16. Oesophagusprostatica small, 0.03-0.06 long surrounded by largetubular, with thick irregularly sinuous walls, 0.48-number of prostate gland cells. Cirrus muscular, 0.01-0.02 long. Genital pore median, between intestinalCorresponding author: Dr. P.C. Gupta, 8/200-A, Arya Nagar,Kanpur-208 002, U. P., India.bifurcation and ventral sucker at 0.72-0.99 fromanterior extremity.