90 Gupta and SinghOvary rounded, entire, submedian, postequatorial, Verma (1936) erected the genus Dissurus with D.pretesticular, intercaecal, 0.14-0.18 x 0.16-0.18 at farrukhabadi as its type, recovered <strong>for</strong>m the intestine2.73-3.22 from anterior extremity. Receptaculam of a White-necked stork. D. espicopus fromseminalis oval, 0.044 x 0.035. Laurer's canal present. Farrukhabad, U.P. Wahid (1962) added D.Vitellaria follicular, dense extending from a level xenorhynchi from the large intestine of Black-neckedanterior to ovary up to hind end of body. Transverse stork. Xenorhynchus asiaticus at London zoo, andvitelline ducts from either side meet and <strong>for</strong>m a yolk Dwivedi (1967) described D. setheae from the typereservoir to open at ootype, surrounded by a large host at Chindwara (M. P.). Srivastava (1974) renumberof Mehlis' gland cells. Uterus long, examined Verma's specimens and gave illustrationsintercaecal lying between ootype and venteral sucker, together with an emended generic diagnosis.Egg large, oval, few, 0.09-0.10 x 0.04-0.05.Singh (1954) established another genus PsilocollarisHost : White-necked stork with P. indicus as its type <strong>for</strong> his specimens from theDissurus episcopus (Bodd.) intestine of D. episcopus from Lucknow, U.P. <strong>The</strong>Location : Large intestinegenus Psilocollaris was characterized by an aspinouscollar.Locality : Unnao, U.P., IndiaGupta (1980) critically studied P. indicus Singh, 1954Material : Nine specimens (incidence in detail and raised question on its validity, doubting2/3)its conspecificity with D. farrukhabadi. Srivastava0.2mm240.05mmLCRCMG0.25mm3 560.05mm1Fig. 1-6. Dissurus farrukhabadi Verma, 1936.1. entire ventral view; 2. head collar, (enlarged); 3. extension of cirrus sac up to anterior third of ventral sucker; 4. cirrus sac,enlarged; 5. female genital complex, enlarged; 6. showing entire testes.OV - ovary, U - uterus, OO-ootype, RS - receptaculum seminalis, LC - Leurar's canal, YR - yolk reservoir.
Re-redescription of Dissurus Farrukhabadi Verma91(1982) re-examined the type specimen of P. indicus Gupta PD. 1980. Further observations on Psilocolaris indicusand found the presence of collar spines and accepted Singh, 1954 with a note on its systematic position(Trematoda: Psilostomatidae). Bulletin of the Zoologicalthe views of Gupta (1980). Further, he considered P.Survey of India. 2: 217-218.singhi Pandey, 1975 as species inquirenda and alsotransferred D. setheae to the genus Stephanoprora Gupta R. 1962. Studies of trematode parasites of <strong>Indian</strong> birds.Odhner, 1902, due to presence of 22 collar spines, II. On Stephanoprora gigantics sp. nov. from the Blackneckedstorck, Xenorhynchus asiaticus (Latham).tandam testes lying in mid-third of body, vitellariaProceeding of the National Academy of science, India.extending <strong>for</strong>m posterior testis to hind end and short 32:381-386.uterus. Srivastava (1982) further observed that D.setheae is probably a synonym of S. nigerica Gupta, Gupta R. 1963. On Stephanoprora nigerica sp. nov. with a briefreview of the genus Stephanoprora Odhner, 19051983. <strong>The</strong> authors are in agreement with the views of(Trematoda : Echinostomatidae). Zoological Anazica.Gupta (1980) and Srivastava (1982). 170:117-130.In the opinion of present authors D. xenorhynchiWahid, 1962 better fits under the genus StephanoproraOdhner, 1902 and shares most of its characters viz. theextension of the vitellaria, 22 collar spines, theposition of the testes and thickening in the wall of theoesophagus with S. gigantica Gupta (1962). <strong>The</strong><strong>for</strong>mer, there<strong>for</strong>e, is considered a synonym of later.Gupta V and Saxena AM. 1986. On Psilocollaris guptai sp. nov.(Psilostomatidae : Trematoda) from the intestine of an<strong>Indian</strong> Stork, Leptonhilos dubius (Gmelin) from Lucknow.<strong>Indian</strong> Journal of Helmonthlogy. 37: 1-3.Pandey KC. 1975. Studies on some known and unknowntrematode parasites. <strong>Indian</strong> Journal of Zootomy. 14: 197-219.Singh KS. 1954. Psilocollaris indicus n.g., n. sp.Gupta and Saxena (1986), overlooking the synonymy(Psilostomatidae) from an <strong>Indian</strong> stork, Dissurus episcopusof Psilocollaris, described P. guptai <strong>for</strong>m the intestine episcopus. Journal of the Washington Academy society. 44:of an <strong>Indian</strong> stork, Leptoptilos dubius <strong>for</strong>m Lucknow 24-26.and differentiated it from the type species on suchSrivastava CB. 1974. A critical study of Verma's "Notes oncharacters as the muscular pharynx, position of the trematode parasites of <strong>Indian</strong> birds" based on his trematodetestes and the ovary. <strong>The</strong>se characters are merely collection on Part 2. Family Echinostomatidae Dietz, 1909.intraspecific variations and, there<strong>for</strong>e, P. guptai is a Journal of the Zoological society of India. 24:160-191.synonym of D. farrukhabadi.Srivastava CB. 1982. <strong>The</strong> fauna of <strong>Indian</strong> and the adjacent<strong>The</strong> present specimens of D. farrukhabadi differedcountries. Platyhelminthes Vol. I (Supplement) Trematoda -Digenea. Addition to Prof. H. R. Mehra's volume onfrom the previous descriptions in having a smallertrematoda - Digenea. Publ. by the Director, Zoolgicalbody, in the extensions of vitellaria from a little Survey of India, Calcultta, 163pp.anterior to overy instead of from the level of it, and inVerma SC. 1936. Notes on trematode parasites of <strong>Indian</strong> birds.having a smaller post-testicular space. <strong>The</strong>sePart I Allababad University Studies. 12: 148-188.differences are considered as intraspecific variations.Wahid S. 1962. On a new trematode from Black-necked stork,REFERENCESXenorhynchus asiaticus. Journal of Helminthology. 36:Dwivedi MP. 1967. A new species of the genus Dissurus Verma, 211-214.1936 (Trematoda Echinostomatidae). Natural and AppliedScience Bulletin, 20: 267-275.